mirror of
https://github.com/denoland/deno.git
synced 2024-12-27 01:29:14 -05:00
b572abfcb3
This PR changes the `Deno.cron` API:
* Marks the existing function as deprecated
* Introduces 2 new overloads, where the handler arg is always last:
```ts
Deno.cron(
name: string,
schedule: string,
handler: () => Promise<void> | void,
)
Deno.cron(
name: string,
schedule: string,
options?: { backoffSchedule?: number[]; signal?: AbortSignal },
handler: () => Promise<void> | void,
)
```
This PR also fixes a bug, when other crons continue execution after one
of the crons was closed using `signal`.
2434 lines
81 KiB
TypeScript
2434 lines
81 KiB
TypeScript
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
|
||
|
||
/// <reference no-default-lib="true" />
|
||
/// <reference lib="deno.ns" />
|
||
/// <reference lib="deno.broadcast_channel" />
|
||
|
||
declare namespace Deno {
|
||
export {}; // stop default export type behavior
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Retrieve the process umask. If `mask` is provided, sets the process umask.
|
||
* This call always returns what the umask was before the call.
|
||
*
|
||
* ```ts
|
||
* console.log(Deno.umask()); // e.g. 18 (0o022)
|
||
* const prevUmaskValue = Deno.umask(0o077); // e.g. 18 (0o022)
|
||
* console.log(Deno.umask()); // e.g. 63 (0o077)
|
||
* ```
|
||
*
|
||
* This API is under consideration to determine if permissions are required to
|
||
* call it.
|
||
*
|
||
* *Note*: This API is not implemented on Windows
|
||
*
|
||
* @category File System
|
||
*/
|
||
export function umask(mask?: number): number;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* All plain number types for interfacing with foreign functions.
|
||
*
|
||
* @category FFI
|
||
*/
|
||
type NativeNumberType =
|
||
| "u8"
|
||
| "i8"
|
||
| "u16"
|
||
| "i16"
|
||
| "u32"
|
||
| "i32"
|
||
| "f32"
|
||
| "f64";
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* All BigInt number types for interfacing with foreign functions.
|
||
*
|
||
* @category FFI
|
||
*/
|
||
type NativeBigIntType =
|
||
| "u64"
|
||
| "i64"
|
||
| "usize"
|
||
| "isize";
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* The native boolean type for interfacing to foreign functions.
|
||
*
|
||
* @category FFI
|
||
*/
|
||
type NativeBooleanType = "bool";
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* The native pointer type for interfacing to foreign functions.
|
||
*
|
||
* @category FFI
|
||
*/
|
||
type NativePointerType = "pointer";
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* The native buffer type for interfacing to foreign functions.
|
||
*
|
||
* @category FFI
|
||
*/
|
||
type NativeBufferType = "buffer";
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* The native function type for interfacing with foreign functions.
|
||
*
|
||
* @category FFI
|
||
*/
|
||
type NativeFunctionType = "function";
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* The native void type for interfacing with foreign functions.
|
||
*
|
||
* @category FFI
|
||
*/
|
||
type NativeVoidType = "void";
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* The native struct type for interfacing with foreign functions.
|
||
*
|
||
* @category FFI
|
||
*/
|
||
type NativeStructType = { readonly struct: readonly NativeType[] };
|
||
|
||
/** @category FFI */
|
||
const brand: unique symbol;
|
||
|
||
/** @category FFI */
|
||
export type NativeU8Enum<T extends number> = "u8" & { [brand]: T };
|
||
/** @category FFI */
|
||
export type NativeI8Enum<T extends number> = "i8" & { [brand]: T };
|
||
/** @category FFI */
|
||
export type NativeU16Enum<T extends number> = "u16" & { [brand]: T };
|
||
/** @category FFI */
|
||
export type NativeI16Enum<T extends number> = "i16" & { [brand]: T };
|
||
/** @category FFI */
|
||
export type NativeU32Enum<T extends number> = "u32" & { [brand]: T };
|
||
/** @category FFI */
|
||
export type NativeI32Enum<T extends number> = "i32" & { [brand]: T };
|
||
/** @category FFI */
|
||
export type NativeTypedPointer<T extends PointerObject> = "pointer" & {
|
||
[brand]: T;
|
||
};
|
||
export type NativeTypedFunction<T extends UnsafeCallbackDefinition> =
|
||
& "function"
|
||
& {
|
||
[brand]: T;
|
||
};
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* All supported types for interfacing with foreign functions.
|
||
*
|
||
* @category FFI
|
||
*/
|
||
export type NativeType =
|
||
| NativeNumberType
|
||
| NativeBigIntType
|
||
| NativeBooleanType
|
||
| NativePointerType
|
||
| NativeBufferType
|
||
| NativeFunctionType
|
||
| NativeStructType;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* @category FFI
|
||
*/
|
||
export type NativeResultType = NativeType | NativeVoidType;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Type conversion for foreign symbol parameters and unsafe callback return
|
||
* types.
|
||
*
|
||
* @category FFI
|
||
*/
|
||
type ToNativeType<T extends NativeType = NativeType> = T extends
|
||
NativeStructType ? BufferSource
|
||
: T extends NativeNumberType ? T extends NativeU8Enum<infer U> ? U
|
||
: T extends NativeI8Enum<infer U> ? U
|
||
: T extends NativeU16Enum<infer U> ? U
|
||
: T extends NativeI16Enum<infer U> ? U
|
||
: T extends NativeU32Enum<infer U> ? U
|
||
: T extends NativeI32Enum<infer U> ? U
|
||
: number
|
||
: T extends NativeBigIntType ? number | bigint
|
||
: T extends NativeBooleanType ? boolean
|
||
: T extends NativePointerType
|
||
? T extends NativeTypedPointer<infer U> ? U | null : PointerValue
|
||
: T extends NativeFunctionType
|
||
? T extends NativeTypedFunction<infer U> ? PointerValue<U> | null
|
||
: PointerValue
|
||
: T extends NativeBufferType ? BufferSource | null
|
||
: never;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Type conversion for unsafe callback return types.
|
||
*
|
||
* @category FFI
|
||
*/
|
||
type ToNativeResultType<T extends NativeResultType = NativeResultType> =
|
||
T extends NativeStructType ? BufferSource
|
||
: T extends NativeNumberType ? T extends NativeU8Enum<infer U> ? U
|
||
: T extends NativeI8Enum<infer U> ? U
|
||
: T extends NativeU16Enum<infer U> ? U
|
||
: T extends NativeI16Enum<infer U> ? U
|
||
: T extends NativeU32Enum<infer U> ? U
|
||
: T extends NativeI32Enum<infer U> ? U
|
||
: number
|
||
: T extends NativeBigIntType ? number | bigint
|
||
: T extends NativeBooleanType ? boolean
|
||
: T extends NativePointerType
|
||
? T extends NativeTypedPointer<infer U> ? U | null : PointerValue
|
||
: T extends NativeFunctionType
|
||
? T extends NativeTypedFunction<infer U> ? PointerObject<U> | null
|
||
: PointerValue
|
||
: T extends NativeBufferType ? BufferSource | null
|
||
: T extends NativeVoidType ? void
|
||
: never;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* A utility type for conversion of parameter types of foreign functions.
|
||
*
|
||
* @category FFI
|
||
*/
|
||
type ToNativeParameterTypes<T extends readonly NativeType[]> =
|
||
//
|
||
[(T[number])[]] extends [T] ? ToNativeType<T[number]>[]
|
||
: [readonly (T[number])[]] extends [T]
|
||
? readonly ToNativeType<T[number]>[]
|
||
: T extends readonly [...NativeType[]] ? {
|
||
[K in keyof T]: ToNativeType<T[K]>;
|
||
}
|
||
: never;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Type conversion for foreign symbol return types and unsafe callback
|
||
* parameters.
|
||
*
|
||
* @category FFI
|
||
*/
|
||
type FromNativeType<T extends NativeType = NativeType> = T extends
|
||
NativeStructType ? Uint8Array
|
||
: T extends NativeNumberType ? T extends NativeU8Enum<infer U> ? U
|
||
: T extends NativeI8Enum<infer U> ? U
|
||
: T extends NativeU16Enum<infer U> ? U
|
||
: T extends NativeI16Enum<infer U> ? U
|
||
: T extends NativeU32Enum<infer U> ? U
|
||
: T extends NativeI32Enum<infer U> ? U
|
||
: number
|
||
: T extends NativeBigIntType ? number | bigint
|
||
: T extends NativeBooleanType ? boolean
|
||
: T extends NativePointerType
|
||
? T extends NativeTypedPointer<infer U> ? U | null : PointerValue
|
||
: T extends NativeBufferType ? PointerValue
|
||
: T extends NativeFunctionType
|
||
? T extends NativeTypedFunction<infer U> ? PointerObject<U> | null
|
||
: PointerValue
|
||
: never;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Type conversion for foreign symbol return types.
|
||
*
|
||
* @category FFI
|
||
*/
|
||
type FromNativeResultType<T extends NativeResultType = NativeResultType> =
|
||
T extends NativeStructType ? Uint8Array
|
||
: T extends NativeNumberType ? T extends NativeU8Enum<infer U> ? U
|
||
: T extends NativeI8Enum<infer U> ? U
|
||
: T extends NativeU16Enum<infer U> ? U
|
||
: T extends NativeI16Enum<infer U> ? U
|
||
: T extends NativeU32Enum<infer U> ? U
|
||
: T extends NativeI32Enum<infer U> ? U
|
||
: number
|
||
: T extends NativeBigIntType ? number | bigint
|
||
: T extends NativeBooleanType ? boolean
|
||
: T extends NativePointerType
|
||
? T extends NativeTypedPointer<infer U> ? U | null : PointerValue
|
||
: T extends NativeBufferType ? PointerValue
|
||
: T extends NativeFunctionType
|
||
? T extends NativeTypedFunction<infer U> ? PointerObject<U> | null
|
||
: PointerValue
|
||
: T extends NativeVoidType ? void
|
||
: never;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* @category FFI
|
||
*/
|
||
type FromNativeParameterTypes<
|
||
T extends readonly NativeType[],
|
||
> =
|
||
//
|
||
[(T[number])[]] extends [T] ? FromNativeType<T[number]>[]
|
||
: [readonly (T[number])[]] extends [T]
|
||
? readonly FromNativeType<T[number]>[]
|
||
: T extends readonly [...NativeType[]] ? {
|
||
[K in keyof T]: FromNativeType<T[K]>;
|
||
}
|
||
: never;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* The interface for a foreign function as defined by its parameter and result
|
||
* types.
|
||
*
|
||
* @category FFI
|
||
*/
|
||
export interface ForeignFunction<
|
||
Parameters extends readonly NativeType[] = readonly NativeType[],
|
||
Result extends NativeResultType = NativeResultType,
|
||
NonBlocking extends boolean = boolean,
|
||
> {
|
||
/** Name of the symbol.
|
||
*
|
||
* Defaults to the key name in symbols object. */
|
||
name?: string;
|
||
/** The parameters of the foreign function. */
|
||
parameters: Parameters;
|
||
/** The result (return value) of the foreign function. */
|
||
result: Result;
|
||
/** When `true`, function calls will run on a dedicated blocking thread and
|
||
* will return a `Promise` resolving to the `result`. */
|
||
nonblocking?: NonBlocking;
|
||
/** When `true`, function calls can safely callback into JavaScript or
|
||
* trigger a garbage collection event.
|
||
*
|
||
* @default {false} */
|
||
callback?: boolean;
|
||
/** When `true`, dlopen will not fail if the symbol is not found.
|
||
* Instead, the symbol will be set to `null`.
|
||
*
|
||
* @default {false} */
|
||
optional?: boolean;
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* @category FFI
|
||
*/
|
||
export interface ForeignStatic<Type extends NativeType = NativeType> {
|
||
/** Name of the symbol, defaults to the key name in symbols object. */
|
||
name?: string;
|
||
/** The type of the foreign static value. */
|
||
type: Type;
|
||
/** When `true`, dlopen will not fail if the symbol is not found.
|
||
* Instead, the symbol will be set to `null`.
|
||
*
|
||
* @default {false} */
|
||
optional?: boolean;
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* A foreign library interface descriptor.
|
||
*
|
||
* @category FFI
|
||
*/
|
||
export interface ForeignLibraryInterface {
|
||
[name: string]: ForeignFunction | ForeignStatic;
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* A utility type that infers a foreign symbol.
|
||
*
|
||
* @category FFI
|
||
*/
|
||
type StaticForeignSymbol<T extends ForeignFunction | ForeignStatic> =
|
||
T extends ForeignFunction ? FromForeignFunction<T>
|
||
: T extends ForeignStatic ? FromNativeType<T["type"]>
|
||
: never;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* @category FFI
|
||
*/
|
||
type FromForeignFunction<T extends ForeignFunction> = T["parameters"] extends
|
||
readonly [] ? () => StaticForeignSymbolReturnType<T>
|
||
: (
|
||
...args: ToNativeParameterTypes<T["parameters"]>
|
||
) => StaticForeignSymbolReturnType<T>;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* @category FFI
|
||
*/
|
||
type StaticForeignSymbolReturnType<T extends ForeignFunction> =
|
||
ConditionalAsync<T["nonblocking"], FromNativeResultType<T["result"]>>;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* @category FFI
|
||
*/
|
||
type ConditionalAsync<IsAsync extends boolean | undefined, T> =
|
||
IsAsync extends true ? Promise<T> : T;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* A utility type that infers a foreign library interface.
|
||
*
|
||
* @category FFI
|
||
*/
|
||
type StaticForeignLibraryInterface<T extends ForeignLibraryInterface> = {
|
||
[K in keyof T]: T[K]["optional"] extends true
|
||
? StaticForeignSymbol<T[K]> | null
|
||
: StaticForeignSymbol<T[K]>;
|
||
};
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* A non-null pointer, represented as an object
|
||
* at runtime. The object's prototype is `null`
|
||
* and cannot be changed. The object cannot be
|
||
* assigned to either and is thus entirely read-only.
|
||
*
|
||
* To interact with memory through a pointer use the
|
||
* {@linkcode UnsafePointerView} class. To create a
|
||
* pointer from an address or the get the address of
|
||
* a pointer use the static methods of the
|
||
* {@linkcode UnsafePointer} class.
|
||
*
|
||
* @category FFI
|
||
*/
|
||
export type PointerObject<T = unknown> = { [brand]: T };
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Pointers are represented either with a {@linkcode PointerObject}
|
||
* object or a `null` if the pointer is null.
|
||
*
|
||
* @category FFI
|
||
*/
|
||
export type PointerValue<T = unknown> = null | PointerObject<T>;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* A collection of static functions for interacting with pointer objects.
|
||
*
|
||
* @category FFI
|
||
*/
|
||
export class UnsafePointer {
|
||
/** Create a pointer from a numeric value. This one is <i>really</i> dangerous! */
|
||
static create<T = unknown>(value: number | bigint): PointerValue<T>;
|
||
/** Returns `true` if the two pointers point to the same address. */
|
||
static equals<T = unknown>(a: PointerValue<T>, b: PointerValue<T>): boolean;
|
||
/** Return the direct memory pointer to the typed array in memory. */
|
||
static of<T = unknown>(
|
||
value: Deno.UnsafeCallback | BufferSource,
|
||
): PointerValue<T>;
|
||
/** Return a new pointer offset from the original by `offset` bytes. */
|
||
static offset<T = unknown>(
|
||
value: PointerObject,
|
||
offset: number,
|
||
): PointerValue<T>;
|
||
/** Get the numeric value of a pointer */
|
||
static value(value: PointerValue): number | bigint;
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* An unsafe pointer view to a memory location as specified by the `pointer`
|
||
* value. The `UnsafePointerView` API follows the standard built in interface
|
||
* {@linkcode DataView} for accessing the underlying types at an memory
|
||
* location (numbers, strings and raw bytes).
|
||
*
|
||
* @category FFI
|
||
*/
|
||
export class UnsafePointerView {
|
||
constructor(pointer: PointerObject);
|
||
|
||
pointer: PointerObject;
|
||
|
||
/** Gets a boolean at the specified byte offset from the pointer. */
|
||
getBool(offset?: number): boolean;
|
||
/** Gets an unsigned 8-bit integer at the specified byte offset from the
|
||
* pointer. */
|
||
getUint8(offset?: number): number;
|
||
/** Gets a signed 8-bit integer at the specified byte offset from the
|
||
* pointer. */
|
||
getInt8(offset?: number): number;
|
||
/** Gets an unsigned 16-bit integer at the specified byte offset from the
|
||
* pointer. */
|
||
getUint16(offset?: number): number;
|
||
/** Gets a signed 16-bit integer at the specified byte offset from the
|
||
* pointer. */
|
||
getInt16(offset?: number): number;
|
||
/** Gets an unsigned 32-bit integer at the specified byte offset from the
|
||
* pointer. */
|
||
getUint32(offset?: number): number;
|
||
/** Gets a signed 32-bit integer at the specified byte offset from the
|
||
* pointer. */
|
||
getInt32(offset?: number): number;
|
||
/** Gets an unsigned 64-bit integer at the specified byte offset from the
|
||
* pointer. */
|
||
getBigUint64(offset?: number): number | bigint;
|
||
/** Gets a signed 64-bit integer at the specified byte offset from the
|
||
* pointer. */
|
||
getBigInt64(offset?: number): number | bigint;
|
||
/** Gets a signed 32-bit float at the specified byte offset from the
|
||
* pointer. */
|
||
getFloat32(offset?: number): number;
|
||
/** Gets a signed 64-bit float at the specified byte offset from the
|
||
* pointer. */
|
||
getFloat64(offset?: number): number;
|
||
/** Gets a pointer at the specified byte offset from the pointer */
|
||
getPointer<T = unknown>(offset?: number): PointerValue<T>;
|
||
/** Gets a C string (`null` terminated string) at the specified byte offset
|
||
* from the pointer. */
|
||
getCString(offset?: number): string;
|
||
/** Gets a C string (`null` terminated string) at the specified byte offset
|
||
* from the specified pointer. */
|
||
static getCString(
|
||
pointer: PointerObject,
|
||
offset?: number,
|
||
): string;
|
||
/** Gets an `ArrayBuffer` of length `byteLength` at the specified byte
|
||
* offset from the pointer. */
|
||
getArrayBuffer(byteLength: number, offset?: number): ArrayBuffer;
|
||
/** Gets an `ArrayBuffer` of length `byteLength` at the specified byte
|
||
* offset from the specified pointer. */
|
||
static getArrayBuffer(
|
||
pointer: PointerObject,
|
||
byteLength: number,
|
||
offset?: number,
|
||
): ArrayBuffer;
|
||
/** Copies the memory of the pointer into a typed array.
|
||
*
|
||
* Length is determined from the typed array's `byteLength`.
|
||
*
|
||
* Also takes optional byte offset from the pointer. */
|
||
copyInto(destination: BufferSource, offset?: number): void;
|
||
/** Copies the memory of the specified pointer into a typed array.
|
||
*
|
||
* Length is determined from the typed array's `byteLength`.
|
||
*
|
||
* Also takes optional byte offset from the pointer. */
|
||
static copyInto(
|
||
pointer: PointerObject,
|
||
destination: BufferSource,
|
||
offset?: number,
|
||
): void;
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* An unsafe pointer to a function, for calling functions that are not present
|
||
* as symbols.
|
||
*
|
||
* @category FFI
|
||
*/
|
||
export class UnsafeFnPointer<Fn extends ForeignFunction> {
|
||
/** The pointer to the function. */
|
||
pointer: PointerObject<Fn>;
|
||
/** The definition of the function. */
|
||
definition: Fn;
|
||
|
||
constructor(pointer: PointerObject<Fn>, definition: Const<Fn>);
|
||
/** @deprecated Properly type {@linkcode pointer} using {@linkcode NativeTypedFunction} or {@linkcode UnsafeCallbackDefinition} types. */
|
||
constructor(pointer: PointerObject, definition: Const<Fn>);
|
||
|
||
/** Call the foreign function. */
|
||
call: FromForeignFunction<Fn>;
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Definition of a unsafe callback function.
|
||
*
|
||
* @category FFI
|
||
*/
|
||
export interface UnsafeCallbackDefinition<
|
||
Parameters extends readonly NativeType[] = readonly NativeType[],
|
||
Result extends NativeResultType = NativeResultType,
|
||
> {
|
||
/** The parameters of the callbacks. */
|
||
parameters: Parameters;
|
||
/** The current result of the callback. */
|
||
result: Result;
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* An unsafe callback function.
|
||
*
|
||
* @category FFI
|
||
*/
|
||
type UnsafeCallbackFunction<
|
||
Parameters extends readonly NativeType[] = readonly NativeType[],
|
||
Result extends NativeResultType = NativeResultType,
|
||
> = Parameters extends readonly [] ? () => ToNativeResultType<Result> : (
|
||
...args: FromNativeParameterTypes<Parameters>
|
||
) => ToNativeResultType<Result>;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* An unsafe function pointer for passing JavaScript functions as C function
|
||
* pointers to foreign function calls.
|
||
*
|
||
* The function pointer remains valid until the `close()` method is called.
|
||
*
|
||
* All `UnsafeCallback` are always thread safe in that they can be called from
|
||
* foreign threads without crashing. However, they do not wake up the Deno event
|
||
* loop by default.
|
||
*
|
||
* If a callback is to be called from foreign threads, use the `threadSafe()`
|
||
* static constructor or explicitly call `ref()` to have the callback wake up
|
||
* the Deno event loop when called from foreign threads. This also stops
|
||
* Deno's process from exiting while the callback still exists and is not
|
||
* unref'ed.
|
||
*
|
||
* Use `deref()` to then allow Deno's process to exit. Calling `deref()` on
|
||
* a ref'ed callback does not stop it from waking up the Deno event loop when
|
||
* called from foreign threads.
|
||
*
|
||
* @category FFI
|
||
*/
|
||
export class UnsafeCallback<
|
||
Definition extends UnsafeCallbackDefinition = UnsafeCallbackDefinition,
|
||
> {
|
||
constructor(
|
||
definition: Const<Definition>,
|
||
callback: UnsafeCallbackFunction<
|
||
Definition["parameters"],
|
||
Definition["result"]
|
||
>,
|
||
);
|
||
|
||
/** The pointer to the unsafe callback. */
|
||
readonly pointer: PointerObject<Definition>;
|
||
/** The definition of the unsafe callback. */
|
||
readonly definition: Definition;
|
||
/** The callback function. */
|
||
readonly callback: UnsafeCallbackFunction<
|
||
Definition["parameters"],
|
||
Definition["result"]
|
||
>;
|
||
|
||
/**
|
||
* Creates an {@linkcode UnsafeCallback} and calls `ref()` once to allow it to
|
||
* wake up the Deno event loop when called from foreign threads.
|
||
*
|
||
* This also stops Deno's process from exiting while the callback still
|
||
* exists and is not unref'ed.
|
||
*/
|
||
static threadSafe<
|
||
Definition extends UnsafeCallbackDefinition = UnsafeCallbackDefinition,
|
||
>(
|
||
definition: Const<Definition>,
|
||
callback: UnsafeCallbackFunction<
|
||
Definition["parameters"],
|
||
Definition["result"]
|
||
>,
|
||
): UnsafeCallback<Definition>;
|
||
|
||
/**
|
||
* Increments the callback's reference counting and returns the new
|
||
* reference count.
|
||
*
|
||
* After `ref()` has been called, the callback always wakes up the
|
||
* Deno event loop when called from foreign threads.
|
||
*
|
||
* If the callback's reference count is non-zero, it keeps Deno's
|
||
* process from exiting.
|
||
*/
|
||
ref(): number;
|
||
|
||
/**
|
||
* Decrements the callback's reference counting and returns the new
|
||
* reference count.
|
||
*
|
||
* Calling `unref()` does not stop a callback from waking up the Deno
|
||
* event loop when called from foreign threads.
|
||
*
|
||
* If the callback's reference counter is zero, it no longer keeps
|
||
* Deno's process from exiting.
|
||
*/
|
||
unref(): number;
|
||
|
||
/**
|
||
* Removes the C function pointer associated with this instance.
|
||
*
|
||
* Continuing to use the instance or the C function pointer after closing
|
||
* the `UnsafeCallback` will lead to errors and crashes.
|
||
*
|
||
* Calling this method sets the callback's reference counting to zero,
|
||
* stops the callback from waking up the Deno event loop when called from
|
||
* foreign threads and no longer keeps Deno's process from exiting.
|
||
*/
|
||
close(): void;
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* A dynamic library resource. Use {@linkcode Deno.dlopen} to load a dynamic
|
||
* library and return this interface.
|
||
*
|
||
* @category FFI
|
||
*/
|
||
export interface DynamicLibrary<S extends ForeignLibraryInterface> {
|
||
/** All of the registered library along with functions for calling them. */
|
||
symbols: StaticForeignLibraryInterface<S>;
|
||
/** Removes the pointers associated with the library symbols.
|
||
*
|
||
* Continuing to use symbols that are part of the library will lead to
|
||
* errors and crashes.
|
||
*
|
||
* Calling this method will also immediately set any references to zero and
|
||
* will no longer keep Deno's process from exiting.
|
||
*/
|
||
close(): void;
|
||
}
|
||
|
||
/**
|
||
* This magic code used to implement better type hints for {@linkcode Deno.dlopen}
|
||
*
|
||
* @category FFI
|
||
*/
|
||
type Cast<A, B> = A extends B ? A : B;
|
||
/** @category FFI */
|
||
type Const<T> = Cast<
|
||
T,
|
||
| (T extends string | number | bigint | boolean ? T : never)
|
||
| { [K in keyof T]: Const<T[K]> }
|
||
| []
|
||
>;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Opens an external dynamic library and registers symbols, making foreign
|
||
* functions available to be called.
|
||
*
|
||
* Requires `allow-ffi` permission. Loading foreign dynamic libraries can in
|
||
* theory bypass all of the sandbox permissions. While it is a separate
|
||
* permission users should acknowledge in practice that is effectively the
|
||
* same as running with the `allow-all` permission.
|
||
*
|
||
* @example Given a C library which exports a foreign function named `add()`
|
||
*
|
||
* ```ts
|
||
* // Determine library extension based on
|
||
* // your OS.
|
||
* let libSuffix = "";
|
||
* switch (Deno.build.os) {
|
||
* case "windows":
|
||
* libSuffix = "dll";
|
||
* break;
|
||
* case "darwin":
|
||
* libSuffix = "dylib";
|
||
* break;
|
||
* default:
|
||
* libSuffix = "so";
|
||
* break;
|
||
* }
|
||
*
|
||
* const libName = `./libadd.${libSuffix}`;
|
||
* // Open library and define exported symbols
|
||
* const dylib = Deno.dlopen(
|
||
* libName,
|
||
* {
|
||
* "add": { parameters: ["isize", "isize"], result: "isize" },
|
||
* } as const,
|
||
* );
|
||
*
|
||
* // Call the symbol `add`
|
||
* const result = dylib.symbols.add(35, 34); // 69
|
||
*
|
||
* console.log(`Result from external addition of 35 and 34: ${result}`);
|
||
* ```
|
||
*
|
||
* @tags allow-ffi
|
||
* @category FFI
|
||
*/
|
||
export function dlopen<S extends ForeignLibraryInterface>(
|
||
filename: string | URL,
|
||
symbols: Const<S>,
|
||
): DynamicLibrary<S>;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* These are unstable options which can be used with {@linkcode Deno.run}.
|
||
*
|
||
* @category Sub Process
|
||
*/
|
||
interface UnstableRunOptions extends RunOptions {
|
||
/** If `true`, clears the environment variables before executing the
|
||
* sub-process.
|
||
*
|
||
* @default {false} */
|
||
clearEnv?: boolean;
|
||
/** For POSIX systems, sets the group ID for the sub process. */
|
||
gid?: number;
|
||
/** For POSIX systems, sets the user ID for the sub process. */
|
||
uid?: number;
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Spawns new subprocess. RunOptions must contain at a minimum the `opt.cmd`,
|
||
* an array of program arguments, the first of which is the binary.
|
||
*
|
||
* ```ts
|
||
* const p = Deno.run({
|
||
* cmd: ["curl", "https://example.com"],
|
||
* });
|
||
* const status = await p.status();
|
||
* ```
|
||
*
|
||
* Subprocess uses same working directory as parent process unless `opt.cwd`
|
||
* is specified.
|
||
*
|
||
* Environmental variables from parent process can be cleared using `opt.clearEnv`.
|
||
* Doesn't guarantee that only `opt.env` variables are present,
|
||
* as the OS may set environmental variables for processes.
|
||
*
|
||
* Environmental variables for subprocess can be specified using `opt.env`
|
||
* mapping.
|
||
*
|
||
* `opt.uid` sets the child process’s user ID. This translates to a setuid call
|
||
* in the child process. Failure in the setuid call will cause the spawn to fail.
|
||
*
|
||
* `opt.gid` is similar to `opt.uid`, but sets the group ID of the child process.
|
||
* This has the same semantics as the uid field.
|
||
*
|
||
* By default subprocess inherits stdio of parent process. To change
|
||
* this this, `opt.stdin`, `opt.stdout`, and `opt.stderr` can be set
|
||
* independently to a resource ID (_rid_) of an open file, `"inherit"`,
|
||
* `"piped"`, or `"null"`:
|
||
*
|
||
* - _number_: the resource ID of an open file/resource. This allows you to
|
||
* read or write to a file.
|
||
* - `"inherit"`: The default if unspecified. The subprocess inherits from the
|
||
* parent.
|
||
* - `"piped"`: A new pipe should be arranged to connect the parent and child
|
||
* sub-process.
|
||
* - `"null"`: This stream will be ignored. This is the equivalent of attaching
|
||
* the stream to `/dev/null`.
|
||
*
|
||
* Details of the spawned process are returned as an instance of
|
||
* {@linkcode Deno.Process}.
|
||
*
|
||
* Requires `allow-run` permission.
|
||
*
|
||
* @tags allow-run
|
||
* @category Sub Process
|
||
*/
|
||
export function run<T extends UnstableRunOptions = UnstableRunOptions>(
|
||
opt: T,
|
||
): Process<T>;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* A custom `HttpClient` for use with {@linkcode fetch} function. This is
|
||
* designed to allow custom certificates or proxies to be used with `fetch()`.
|
||
*
|
||
* @example ```ts
|
||
* const caCert = await Deno.readTextFile("./ca.pem");
|
||
* const client = Deno.createHttpClient({ caCerts: [ caCert ] });
|
||
* const req = await fetch("https://myserver.com", { client });
|
||
* ```
|
||
*
|
||
* @category Fetch API
|
||
*/
|
||
export interface HttpClient {
|
||
/** The resource ID associated with the client. */
|
||
rid: number;
|
||
/** Close the HTTP client. */
|
||
close(): void;
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* The options used when creating a {@linkcode Deno.HttpClient}.
|
||
*
|
||
* @category Fetch API
|
||
*/
|
||
export interface CreateHttpClientOptions {
|
||
/** A list of root certificates that will be used in addition to the
|
||
* default root certificates to verify the peer's certificate.
|
||
*
|
||
* Must be in PEM format. */
|
||
caCerts?: string[];
|
||
/** A HTTP proxy to use for new connections. */
|
||
proxy?: Proxy;
|
||
/** PEM formatted client certificate chain. */
|
||
certChain?: string;
|
||
/** PEM formatted (RSA or PKCS8) private key of client certificate. */
|
||
privateKey?: string;
|
||
/** Sets the maximum numer of idle connections per host allowed in the pool. */
|
||
poolMaxIdlePerHost?: number;
|
||
/** Set an optional timeout for idle sockets being kept-alive.
|
||
* Set to false to disable the timeout. */
|
||
poolIdleTimeout?: number | false;
|
||
/**
|
||
* Whether HTTP/1.1 is allowed or not.
|
||
*
|
||
* @default {true}
|
||
*/
|
||
http1?: boolean;
|
||
/** Whether HTTP/2 is allowed or not.
|
||
*
|
||
* @default {true}
|
||
*/
|
||
http2?: boolean;
|
||
/** Whether setting the host header is allowed or not.
|
||
*
|
||
* @default {false}
|
||
*/
|
||
allowHost?: boolean;
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* The definition of a proxy when specifying
|
||
* {@linkcode Deno.CreateHttpClientOptions}.
|
||
*
|
||
* @category Fetch API
|
||
*/
|
||
export interface Proxy {
|
||
/** The string URL of the proxy server to use. */
|
||
url: string;
|
||
/** The basic auth credentials to be used against the proxy server. */
|
||
basicAuth?: BasicAuth;
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Basic authentication credentials to be used with a {@linkcode Deno.Proxy}
|
||
* server when specifying {@linkcode Deno.CreateHttpClientOptions}.
|
||
*
|
||
* @category Fetch API
|
||
*/
|
||
export interface BasicAuth {
|
||
/** The username to be used against the proxy server. */
|
||
username: string;
|
||
/** The password to be used against the proxy server. */
|
||
password: string;
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Create a custom HttpClient to use with {@linkcode fetch}. This is an
|
||
* extension of the web platform Fetch API which allows Deno to use custom
|
||
* TLS certificates and connect via a proxy while using `fetch()`.
|
||
*
|
||
* @example ```ts
|
||
* const caCert = await Deno.readTextFile("./ca.pem");
|
||
* const client = Deno.createHttpClient({ caCerts: [ caCert ] });
|
||
* const response = await fetch("https://myserver.com", { client });
|
||
* ```
|
||
*
|
||
* @example ```ts
|
||
* const client = Deno.createHttpClient({
|
||
* proxy: { url: "http://myproxy.com:8080" }
|
||
* });
|
||
* const response = await fetch("https://myserver.com", { client });
|
||
* ```
|
||
*
|
||
* @category Fetch API
|
||
*/
|
||
export function createHttpClient(
|
||
options: CreateHttpClientOptions,
|
||
): HttpClient;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Represents membership of a IPv4 multicast group.
|
||
*
|
||
* @category Network
|
||
*/
|
||
interface MulticastV4Membership {
|
||
/** Leaves the multicast group. */
|
||
leave: () => Promise<void>;
|
||
/** Sets the multicast loopback option. If enabled, multicast packets will be looped back to the local socket. */
|
||
setLoopback: (loopback: boolean) => Promise<void>;
|
||
/** Sets the time-to-live of outgoing multicast packets for this socket. */
|
||
setTTL: (ttl: number) => Promise<void>;
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Represents membership of a IPv6 multicast group.
|
||
*
|
||
* @category Network
|
||
*/
|
||
interface MulticastV6Membership {
|
||
/** Leaves the multicast group. */
|
||
leave: () => Promise<void>;
|
||
/** Sets the multicast loopback option. If enabled, multicast packets will be looped back to the local socket. */
|
||
setLoopback: (loopback: boolean) => Promise<void>;
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* A generic transport listener for message-oriented protocols.
|
||
*
|
||
* @category Network
|
||
*/
|
||
export interface DatagramConn extends AsyncIterable<[Uint8Array, Addr]> {
|
||
/** Joins an IPv4 multicast group. */
|
||
joinMulticastV4(
|
||
address: string,
|
||
networkInterface: string,
|
||
): Promise<MulticastV4Membership>;
|
||
|
||
/** Joins an IPv6 multicast group. */
|
||
joinMulticastV6(
|
||
address: string,
|
||
networkInterface: number,
|
||
): Promise<MulticastV6Membership>;
|
||
|
||
/** Waits for and resolves to the next message to the instance.
|
||
*
|
||
* Messages are received in the format of a tuple containing the data array
|
||
* and the address information.
|
||
*/
|
||
receive(p?: Uint8Array): Promise<[Uint8Array, Addr]>;
|
||
/** Sends a message to the target via the connection. The method resolves
|
||
* with the number of bytes sent. */
|
||
send(p: Uint8Array, addr: Addr): Promise<number>;
|
||
/** Close closes the socket. Any pending message promises will be rejected
|
||
* with errors. */
|
||
close(): void;
|
||
/** Return the address of the instance. */
|
||
readonly addr: Addr;
|
||
[Symbol.asyncIterator](): AsyncIterableIterator<[Uint8Array, Addr]>;
|
||
}
|
||
|
||
/**
|
||
* @category Network
|
||
*/
|
||
export interface TcpListenOptions extends ListenOptions {
|
||
/** When `true` the SO_REUSEPORT flag will be set on the listener. This
|
||
* allows multiple processes to listen on the same address and port.
|
||
*
|
||
* On Linux this will cause the kernel to distribute incoming connections
|
||
* across the different processes that are listening on the same address and
|
||
* port.
|
||
*
|
||
* This flag is only supported on Linux. It is silently ignored on other
|
||
* platforms.
|
||
*
|
||
* @default {false} */
|
||
reusePort?: boolean;
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Unstable options which can be set when opening a Unix listener via
|
||
* {@linkcode Deno.listen} or {@linkcode Deno.listenDatagram}.
|
||
*
|
||
* @category Network
|
||
*/
|
||
export interface UnixListenOptions {
|
||
/** A path to the Unix Socket. */
|
||
path: string;
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Unstable options which can be set when opening a datagram listener via
|
||
* {@linkcode Deno.listenDatagram}.
|
||
*
|
||
* @category Network
|
||
*/
|
||
export interface UdpListenOptions extends ListenOptions {
|
||
/** When `true` the specified address will be reused, even if another
|
||
* process has already bound a socket on it. This effectively steals the
|
||
* socket from the listener.
|
||
*
|
||
* @default {false} */
|
||
reuseAddress?: boolean;
|
||
|
||
/** When `true`, sent multicast packets will be looped back to the local socket.
|
||
*
|
||
* @default {false} */
|
||
loopback?: boolean;
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Listen announces on the local transport address.
|
||
*
|
||
* ```ts
|
||
* const listener = Deno.listen({ path: "/foo/bar.sock", transport: "unix" })
|
||
* ```
|
||
*
|
||
* Requires `allow-read` and `allow-write` permission.
|
||
*
|
||
* @tags allow-read, allow-write
|
||
* @category Network
|
||
*/
|
||
export function listen(
|
||
options: UnixListenOptions & { transport: "unix" },
|
||
): Listener;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Listen announces on the local transport address.
|
||
*
|
||
* ```ts
|
||
* const listener1 = Deno.listenDatagram({
|
||
* port: 80,
|
||
* transport: "udp"
|
||
* });
|
||
* const listener2 = Deno.listenDatagram({
|
||
* hostname: "golang.org",
|
||
* port: 80,
|
||
* transport: "udp"
|
||
* });
|
||
* ```
|
||
*
|
||
* Requires `allow-net` permission.
|
||
*
|
||
* @tags allow-net
|
||
* @category Network
|
||
*/
|
||
export function listenDatagram(
|
||
options: UdpListenOptions & { transport: "udp" },
|
||
): DatagramConn;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Listen announces on the local transport address.
|
||
*
|
||
* ```ts
|
||
* const listener = Deno.listenDatagram({
|
||
* path: "/foo/bar.sock",
|
||
* transport: "unixpacket"
|
||
* });
|
||
* ```
|
||
*
|
||
* Requires `allow-read` and `allow-write` permission.
|
||
*
|
||
* @tags allow-read, allow-write
|
||
* @category Network
|
||
*/
|
||
export function listenDatagram(
|
||
options: UnixListenOptions & { transport: "unixpacket" },
|
||
): DatagramConn;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* @category Network
|
||
*/
|
||
export interface UnixConnectOptions {
|
||
transport: "unix";
|
||
path: string;
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Connects to the hostname (default is "127.0.0.1") and port on the named
|
||
* transport (default is "tcp"), and resolves to the connection (`Conn`).
|
||
*
|
||
* ```ts
|
||
* const conn1 = await Deno.connect({ port: 80 });
|
||
* const conn2 = await Deno.connect({ hostname: "192.0.2.1", port: 80 });
|
||
* const conn3 = await Deno.connect({ hostname: "[2001:db8::1]", port: 80 });
|
||
* const conn4 = await Deno.connect({ hostname: "golang.org", port: 80, transport: "tcp" });
|
||
* const conn5 = await Deno.connect({ path: "/foo/bar.sock", transport: "unix" });
|
||
* ```
|
||
*
|
||
* Requires `allow-net` permission for "tcp" and `allow-read` for "unix".
|
||
*
|
||
* @tags allow-net, allow-read
|
||
* @category Network
|
||
*/
|
||
export function connect(options: ConnectOptions): Promise<TcpConn>;
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Connects to the hostname (default is "127.0.0.1") and port on the named
|
||
* transport (default is "tcp"), and resolves to the connection (`Conn`).
|
||
*
|
||
* ```ts
|
||
* const conn1 = await Deno.connect({ port: 80 });
|
||
* const conn2 = await Deno.connect({ hostname: "192.0.2.1", port: 80 });
|
||
* const conn3 = await Deno.connect({ hostname: "[2001:db8::1]", port: 80 });
|
||
* const conn4 = await Deno.connect({ hostname: "golang.org", port: 80, transport: "tcp" });
|
||
* const conn5 = await Deno.connect({ path: "/foo/bar.sock", transport: "unix" });
|
||
* ```
|
||
*
|
||
* Requires `allow-net` permission for "tcp" and `allow-read` for "unix".
|
||
*
|
||
* @tags allow-net, allow-read
|
||
* @category Network
|
||
*/
|
||
export function connect(options: UnixConnectOptions): Promise<UnixConn>;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* @category Network
|
||
*/
|
||
export interface ConnectTlsOptions {
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* PEM formatted client certificate chain.
|
||
*/
|
||
certChain?: string;
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* PEM formatted (RSA or PKCS8) private key of client certificate.
|
||
*/
|
||
privateKey?: string;
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* @category Network
|
||
*/
|
||
export interface TlsHandshakeInfo {
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Contains the ALPN protocol selected during negotiation with the server.
|
||
* If no ALPN protocol selected, returns `null`.
|
||
*/
|
||
alpnProtocol: string | null;
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* @category Network
|
||
*/
|
||
export interface TlsConn extends Conn {
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Runs the client or server handshake protocol to completion if that has
|
||
* not happened yet. Calling this method is optional; the TLS handshake
|
||
* will be completed automatically as soon as data is sent or received.
|
||
*/
|
||
handshake(): Promise<TlsHandshakeInfo>;
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Create a TLS connection with an attached client certificate.
|
||
*
|
||
* ```ts
|
||
* const conn = await Deno.connectTls({
|
||
* hostname: "deno.land",
|
||
* port: 443,
|
||
* certChain: "---- BEGIN CERTIFICATE ----\n ...",
|
||
* privateKey: "---- BEGIN PRIVATE KEY ----\n ...",
|
||
* });
|
||
* ```
|
||
*
|
||
* Requires `allow-net` permission.
|
||
*
|
||
* @tags allow-net
|
||
* @category Network
|
||
*/
|
||
export function connectTls(options: ConnectTlsOptions): Promise<TlsConn>;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Acquire an advisory file-system lock for the provided file.
|
||
*
|
||
* @param [exclusive=false]
|
||
* @category File System
|
||
*/
|
||
export function flock(rid: number, exclusive?: boolean): Promise<void>;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Acquire an advisory file-system lock synchronously for the provided file.
|
||
*
|
||
* @param [exclusive=false]
|
||
* @category File System
|
||
*/
|
||
export function flockSync(rid: number, exclusive?: boolean): void;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Release an advisory file-system lock for the provided file.
|
||
*
|
||
* @category File System
|
||
*/
|
||
export function funlock(rid: number): Promise<void>;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Release an advisory file-system lock for the provided file synchronously.
|
||
*
|
||
* @category File System
|
||
*/
|
||
export function funlockSync(rid: number): void;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Allows "hijacking" the connection that the request is associated with. This
|
||
* can be used to implement protocols that build on top of HTTP (eg.
|
||
* {@linkcode WebSocket}).
|
||
*
|
||
* The returned promise returns underlying connection and first packet
|
||
* received. The promise shouldn't be awaited before responding to the
|
||
* `request`, otherwise event loop might deadlock.
|
||
*
|
||
* ```ts
|
||
* function handler(req: Request): Response {
|
||
* Deno.upgradeHttp(req).then(([conn, firstPacket]) => {
|
||
* // ...
|
||
* });
|
||
* return new Response(null, { status: 101 });
|
||
* }
|
||
* ```
|
||
*
|
||
* This method can only be called on requests originating the
|
||
* {@linkcode Deno.serveHttp} server.
|
||
*
|
||
* @category HTTP Server
|
||
*/
|
||
export function upgradeHttp(
|
||
request: Request,
|
||
): Promise<[Deno.Conn, Uint8Array]>;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Open a new {@linkcode Deno.Kv} connection to persist data.
|
||
*
|
||
* When a path is provided, the database will be persisted to disk at that
|
||
* path. Read and write access to the file is required.
|
||
*
|
||
* When no path is provided, the database will be opened in a default path for
|
||
* the current script. This location is persistent across script runs and is
|
||
* keyed on the origin storage key (the same key that is used to determine
|
||
* `localStorage` persistence). More information about the origin storage key
|
||
* can be found in the Deno Manual.
|
||
*
|
||
* @tags allow-read, allow-write
|
||
* @category KV
|
||
*/
|
||
export function openKv(path?: string): Promise<Deno.Kv>;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Create a cron job that will periodically execute the provided handler
|
||
* callback based on the specified schedule.
|
||
*
|
||
* ```ts
|
||
* Deno.cron("sample cron", "20 * * * *", () => {
|
||
* console.log("cron job executed");
|
||
* });
|
||
* ```
|
||
* `backoffSchedule` option can be used to specify the retry policy for failed
|
||
* executions. Each element in the array represents the number of milliseconds
|
||
* to wait before retrying the execution. For example, `[1000, 5000, 10000]`
|
||
* means that a failed execution will be retried at most 3 times, with 1
|
||
* second, 5 seconds, and 10 seconds delay between each retry.
|
||
*
|
||
* @category Cron
|
||
* @deprecated Use other {@linkcode cron} overloads instead. This overload
|
||
* will be removed in the future.
|
||
*/
|
||
export function cron(
|
||
name: string,
|
||
schedule: string,
|
||
handler: () => Promise<void> | void,
|
||
options: { backoffSchedule?: number[]; signal?: AbortSignal },
|
||
): Promise<void>;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Create a cron job that will periodically execute the provided handler
|
||
* callback based on the specified schedule.
|
||
*
|
||
* ```ts
|
||
* Deno.cron("sample cron", "20 * * * *", () => {
|
||
* console.log("cron job executed");
|
||
* });
|
||
* ```
|
||
*
|
||
* `schedule` is a Unix cron format expression, where time is specified
|
||
* using UTC time zone.
|
||
*
|
||
* @category Cron
|
||
*/
|
||
export function cron(
|
||
name: string,
|
||
schedule: string,
|
||
handler: () => Promise<void> | void,
|
||
): Promise<void>;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Create a cron job that will periodically execute the provided handler
|
||
* callback based on the specified schedule.
|
||
*
|
||
* ```ts
|
||
* Deno.cron("sample cron", "20 * * * *", {
|
||
* backoffSchedule: [10, 20]
|
||
* }, () => {
|
||
* console.log("cron job executed");
|
||
* });
|
||
* ```
|
||
*
|
||
* `schedule` is a Unix cron format expression, where time is specified
|
||
* using UTC time zone.
|
||
*
|
||
* `backoffSchedule` option can be used to specify the retry policy for failed
|
||
* executions. Each element in the array represents the number of milliseconds
|
||
* to wait before retrying the execution. For example, `[1000, 5000, 10000]`
|
||
* means that a failed execution will be retried at most 3 times, with 1
|
||
* second, 5 seconds, and 10 seconds delay between each retry.
|
||
*
|
||
* @category Cron
|
||
*/
|
||
export function cron(
|
||
name: string,
|
||
schedule: string,
|
||
options: { backoffSchedule?: number[]; signal?: AbortSignal },
|
||
handler: () => Promise<void> | void,
|
||
): Promise<void>;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* A key to be persisted in a {@linkcode Deno.Kv}. A key is a sequence
|
||
* of {@linkcode Deno.KvKeyPart}s.
|
||
*
|
||
* Keys are ordered lexicographically by their parts. The first part is the
|
||
* most significant, and the last part is the least significant. The order of
|
||
* the parts is determined by both the type and the value of the part. The
|
||
* relative significance of the types can be found in documentation for the
|
||
* {@linkcode Deno.KvKeyPart} type.
|
||
*
|
||
* Keys have a maximum size of 2048 bytes serialized. If the size of the key
|
||
* exceeds this limit, an error will be thrown on the operation that this key
|
||
* was passed to.
|
||
*
|
||
* @category KV
|
||
*/
|
||
export type KvKey = readonly KvKeyPart[];
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* A single part of a {@linkcode Deno.KvKey}. Parts are ordered
|
||
* lexicographically, first by their type, and within a given type by their
|
||
* value.
|
||
*
|
||
* The ordering of types is as follows:
|
||
*
|
||
* 1. `Uint8Array`
|
||
* 2. `string`
|
||
* 3. `number`
|
||
* 4. `bigint`
|
||
* 5. `boolean`
|
||
*
|
||
* Within a given type, the ordering is as follows:
|
||
*
|
||
* - `Uint8Array` is ordered by the byte ordering of the array
|
||
* - `string` is ordered by the byte ordering of the UTF-8 encoding of the
|
||
* string
|
||
* - `number` is ordered following this pattern: `-NaN`
|
||
* < `-Infinity` < `-100.0` < `-1.0` < -`0.5` < `-0.0` < `0.0` < `0.5`
|
||
* < `1.0` < `100.0` < `Infinity` < `NaN`
|
||
* - `bigint` is ordered by mathematical ordering, with the largest negative
|
||
* number being the least first value, and the largest positive number
|
||
* being the last value
|
||
* - `boolean` is ordered by `false` < `true`
|
||
*
|
||
* This means that the part `1.0` (a number) is ordered before the part `2.0`
|
||
* (also a number), but is greater than the part `0n` (a bigint), because
|
||
* `1.0` is a number and `0n` is a bigint, and type ordering has precedence
|
||
* over the ordering of values within a type.
|
||
*
|
||
* @category KV
|
||
*/
|
||
export type KvKeyPart = Uint8Array | string | number | bigint | boolean;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Consistency level of a KV operation.
|
||
*
|
||
* - `strong` - This operation must be strongly-consistent.
|
||
* - `eventual` - Eventually-consistent behavior is allowed.
|
||
*
|
||
* @category KV
|
||
*/
|
||
export type KvConsistencyLevel = "strong" | "eventual";
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* A selector that selects the range of data returned by a list operation on a
|
||
* {@linkcode Deno.Kv}.
|
||
*
|
||
* The selector can either be a prefix selector or a range selector. A prefix
|
||
* selector selects all keys that start with the given prefix (optionally
|
||
* starting at a given key). A range selector selects all keys that are
|
||
* lexicographically between the given start and end keys.
|
||
*
|
||
* @category KV
|
||
*/
|
||
export type KvListSelector =
|
||
| { prefix: KvKey }
|
||
| { prefix: KvKey; start: KvKey }
|
||
| { prefix: KvKey; end: KvKey }
|
||
| { start: KvKey; end: KvKey };
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* A mutation to a key in a {@linkcode Deno.Kv}. A mutation is a
|
||
* combination of a key, a value, and a type. The type determines how the
|
||
* mutation is applied to the key.
|
||
*
|
||
* - `set` - Sets the value of the key to the given value, overwriting any
|
||
* existing value. Optionally an `expireIn` option can be specified to
|
||
* set a time-to-live (TTL) for the key. The TTL is specified in
|
||
* milliseconds, and the key will be deleted from the database at earliest
|
||
* after the specified number of milliseconds have elapsed. Once the
|
||
* specified duration has passed, the key may still be visible for some
|
||
* additional time. If the `expireIn` option is not specified, the key will
|
||
* not expire.
|
||
* - `delete` - Deletes the key from the database. The mutation is a no-op if
|
||
* the key does not exist.
|
||
* - `sum` - Adds the given value to the existing value of the key. Both the
|
||
* value specified in the mutation, and any existing value must be of type
|
||
* `Deno.KvU64`. If the key does not exist, the value is set to the given
|
||
* value (summed with 0). If the result of the sum overflows an unsigned
|
||
* 64-bit integer, the result is wrapped around.
|
||
* - `max` - Sets the value of the key to the maximum of the existing value
|
||
* and the given value. Both the value specified in the mutation, and any
|
||
* existing value must be of type `Deno.KvU64`. If the key does not exist,
|
||
* the value is set to the given value.
|
||
* - `min` - Sets the value of the key to the minimum of the existing value
|
||
* and the given value. Both the value specified in the mutation, and any
|
||
* existing value must be of type `Deno.KvU64`. If the key does not exist,
|
||
* the value is set to the given value.
|
||
*
|
||
* @category KV
|
||
*/
|
||
export type KvMutation =
|
||
& { key: KvKey }
|
||
& (
|
||
| { type: "set"; value: unknown; expireIn?: number }
|
||
| { type: "delete" }
|
||
| { type: "sum"; value: KvU64 }
|
||
| { type: "max"; value: KvU64 }
|
||
| { type: "min"; value: KvU64 }
|
||
);
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* An iterator over a range of data entries in a {@linkcode Deno.Kv}.
|
||
*
|
||
* The cursor getter returns the cursor that can be used to resume the
|
||
* iteration from the current position in the future.
|
||
*
|
||
* @category KV
|
||
*/
|
||
export class KvListIterator<T> implements AsyncIterableIterator<KvEntry<T>> {
|
||
/**
|
||
* Returns the cursor of the current position in the iteration. This cursor
|
||
* can be used to resume the iteration from the current position in the
|
||
* future by passing it to the `cursor` option of the `list` method.
|
||
*/
|
||
get cursor(): string;
|
||
|
||
next(): Promise<IteratorResult<KvEntry<T>, undefined>>;
|
||
[Symbol.asyncIterator](): AsyncIterableIterator<KvEntry<T>>;
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* A versioned pair of key and value in a {@linkcode Deno.Kv}.
|
||
*
|
||
* The `versionstamp` is a string that represents the current version of the
|
||
* key-value pair. It can be used to perform atomic operations on the KV store
|
||
* by passing it to the `check` method of a {@linkcode Deno.AtomicOperation}.
|
||
*
|
||
* @category KV
|
||
*/
|
||
export type KvEntry<T> = { key: KvKey; value: T; versionstamp: string };
|
||
|
||
/**
|
||
* **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* An optional versioned pair of key and value in a {@linkcode Deno.Kv}.
|
||
*
|
||
* This is the same as a {@linkcode KvEntry}, but the `value` and `versionstamp`
|
||
* fields may be `null` if no value exists for the given key in the KV store.
|
||
*
|
||
* @category KV
|
||
*/
|
||
export type KvEntryMaybe<T> = KvEntry<T> | {
|
||
key: KvKey;
|
||
value: null;
|
||
versionstamp: null;
|
||
};
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Options for listing key-value pairs in a {@linkcode Deno.Kv}.
|
||
*
|
||
* @category KV
|
||
*/
|
||
export interface KvListOptions {
|
||
/**
|
||
* The maximum number of key-value pairs to return. If not specified, all
|
||
* matching key-value pairs will be returned.
|
||
*/
|
||
limit?: number;
|
||
/**
|
||
* The cursor to resume the iteration from. If not specified, the iteration
|
||
* will start from the beginning.
|
||
*/
|
||
cursor?: string;
|
||
/**
|
||
* Whether to reverse the order of the returned key-value pairs. If not
|
||
* specified, the order will be ascending from the start of the range as per
|
||
* the lexicographical ordering of the keys. If `true`, the order will be
|
||
* descending from the end of the range.
|
||
*
|
||
* The default value is `false`.
|
||
*/
|
||
reverse?: boolean;
|
||
/**
|
||
* The consistency level of the list operation. The default consistency
|
||
* level is "strong". Some use cases can benefit from using a weaker
|
||
* consistency level. For more information on consistency levels, see the
|
||
* documentation for {@linkcode Deno.KvConsistencyLevel}.
|
||
*
|
||
* List operations are performed in batches (in sizes specified by the
|
||
* `batchSize` option). The consistency level of the list operation is
|
||
* applied to each batch individually. This means that while each batch is
|
||
* guaranteed to be consistent within itself, the entire list operation may
|
||
* not be consistent across batches because a mutation may be applied to a
|
||
* key-value pair between batches, in a batch that has already been returned
|
||
* by the list operation.
|
||
*/
|
||
consistency?: KvConsistencyLevel;
|
||
/**
|
||
* The size of the batches in which the list operation is performed. Larger
|
||
* or smaller batch sizes may positively or negatively affect the
|
||
* performance of a list operation depending on the specific use case and
|
||
* iteration behavior. Slow iterating queries may benefit from using a
|
||
* smaller batch size for increased overall consistency, while fast
|
||
* iterating queries may benefit from using a larger batch size for better
|
||
* performance.
|
||
*
|
||
* The default batch size is equal to the `limit` option, or 100 if this is
|
||
* unset. The maximum value for this option is 500. Larger values will be
|
||
* clamped.
|
||
*/
|
||
batchSize?: number;
|
||
}
|
||
|
||
/** @category KV */
|
||
export interface KvCommitResult {
|
||
ok: true;
|
||
/** The versionstamp of the value committed to KV. */
|
||
versionstamp: string;
|
||
}
|
||
|
||
/** @category KV */
|
||
export interface KvCommitError {
|
||
ok: false;
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* A check to perform as part of a {@linkcode Deno.AtomicOperation}. The check
|
||
* will fail if the versionstamp for the key-value pair in the KV store does
|
||
* not match the given versionstamp. A check with a `null` versionstamp checks
|
||
* that the key-value pair does not currently exist in the KV store.
|
||
*
|
||
* @category KV
|
||
*/
|
||
export interface AtomicCheck {
|
||
key: KvKey;
|
||
versionstamp: string | null;
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* An operation on a {@linkcode Deno.Kv} that can be performed
|
||
* atomically. Atomic operations do not auto-commit, and must be committed
|
||
* explicitly by calling the `commit` method.
|
||
*
|
||
* Atomic operations can be used to perform multiple mutations on the KV store
|
||
* in a single atomic transaction. They can also be used to perform
|
||
* conditional mutations by specifying one or more
|
||
* {@linkcode Deno.AtomicCheck}s that ensure that a mutation is only performed
|
||
* if the key-value pair in the KV has a specific versionstamp. If any of the
|
||
* checks fail, the entire operation will fail and no mutations will be made.
|
||
*
|
||
* The ordering of mutations is guaranteed to be the same as the ordering of
|
||
* the mutations specified in the operation. Checks are performed before any
|
||
* mutations are performed. The ordering of checks is unobservable.
|
||
*
|
||
* Atomic operations can be used to implement optimistic locking, where a
|
||
* mutation is only performed if the key-value pair in the KV store has not
|
||
* been modified since the last read. This can be done by specifying a check
|
||
* that ensures that the versionstamp of the key-value pair matches the
|
||
* versionstamp that was read. If the check fails, the mutation will not be
|
||
* performed and the operation will fail. One can then retry the read-modify-
|
||
* write operation in a loop until it succeeds.
|
||
*
|
||
* The `commit` method of an atomic operation returns a value indicating
|
||
* whether checks passed and mutations were performed. If the operation failed
|
||
* because of a failed check, the return value will be a
|
||
* {@linkcode Deno.KvCommitError} with an `ok: false` property. If the
|
||
* operation failed for any other reason (storage error, invalid value, etc.),
|
||
* an exception will be thrown. If the operation succeeded, the return value
|
||
* will be a {@linkcode Deno.KvCommitResult} object with a `ok: true` property
|
||
* and the versionstamp of the value committed to KV.
|
||
|
||
*
|
||
* @category KV
|
||
*/
|
||
export class AtomicOperation {
|
||
/**
|
||
* Add to the operation a check that ensures that the versionstamp of the
|
||
* key-value pair in the KV store matches the given versionstamp. If the
|
||
* check fails, the entire operation will fail and no mutations will be
|
||
* performed during the commit.
|
||
*/
|
||
check(...checks: AtomicCheck[]): this;
|
||
/**
|
||
* Add to the operation a mutation that performs the specified mutation on
|
||
* the specified key if all checks pass during the commit. The types and
|
||
* semantics of all available mutations are described in the documentation
|
||
* for {@linkcode Deno.KvMutation}.
|
||
*/
|
||
mutate(...mutations: KvMutation[]): this;
|
||
/**
|
||
* Shortcut for creating a `sum` mutation. This method wraps `n` in a
|
||
* {@linkcode Deno.KvU64}, so the value of `n` must be in the range
|
||
* `[0, 2^64-1]`.
|
||
*/
|
||
sum(key: KvKey, n: bigint): this;
|
||
/**
|
||
* Shortcut for creating a `min` mutation. This method wraps `n` in a
|
||
* {@linkcode Deno.KvU64}, so the value of `n` must be in the range
|
||
* `[0, 2^64-1]`.
|
||
*/
|
||
min(key: KvKey, n: bigint): this;
|
||
/**
|
||
* Shortcut for creating a `max` mutation. This method wraps `n` in a
|
||
* {@linkcode Deno.KvU64}, so the value of `n` must be in the range
|
||
* `[0, 2^64-1]`.
|
||
*/
|
||
max(key: KvKey, n: bigint): this;
|
||
/**
|
||
* Add to the operation a mutation that sets the value of the specified key
|
||
* to the specified value if all checks pass during the commit.
|
||
*
|
||
* Optionally an `expireIn` option can be specified to set a time-to-live
|
||
* (TTL) for the key. The TTL is specified in milliseconds, and the key will
|
||
* be deleted from the database at earliest after the specified number of
|
||
* milliseconds have elapsed. Once the specified duration has passed, the
|
||
* key may still be visible for some additional time. If the `expireIn`
|
||
* option is not specified, the key will not expire.
|
||
*/
|
||
set(key: KvKey, value: unknown, options?: { expireIn?: number }): this;
|
||
/**
|
||
* Add to the operation a mutation that deletes the specified key if all
|
||
* checks pass during the commit.
|
||
*/
|
||
delete(key: KvKey): this;
|
||
/**
|
||
* Add to the operation a mutation that enqueues a value into the queue
|
||
* if all checks pass during the commit.
|
||
*/
|
||
enqueue(
|
||
value: unknown,
|
||
options?: { delay?: number; keysIfUndelivered?: Deno.KvKey[] },
|
||
): this;
|
||
/**
|
||
* Commit the operation to the KV store. Returns a value indicating whether
|
||
* checks passed and mutations were performed. If the operation failed
|
||
* because of a failed check, the return value will be a {@linkcode
|
||
* Deno.KvCommitError} with an `ok: false` property. If the operation failed
|
||
* for any other reason (storage error, invalid value, etc.), an exception
|
||
* will be thrown. If the operation succeeded, the return value will be a
|
||
* {@linkcode Deno.KvCommitResult} object with a `ok: true` property and the
|
||
* versionstamp of the value committed to KV.
|
||
*
|
||
* If the commit returns `ok: false`, one may create a new atomic operation
|
||
* with updated checks and mutations and attempt to commit it again. See the
|
||
* note on optimistic locking in the documentation for
|
||
* {@linkcode Deno.AtomicOperation}.
|
||
*/
|
||
commit(): Promise<KvCommitResult | KvCommitError>;
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* A key-value database that can be used to store and retrieve data.
|
||
*
|
||
* Data is stored as key-value pairs, where the key is a {@linkcode Deno.KvKey}
|
||
* and the value is an arbitrary structured-serializable JavaScript value.
|
||
* Keys are ordered lexicographically as described in the documentation for
|
||
* {@linkcode Deno.KvKey}. Keys are unique within a database, and the last
|
||
* value set for a given key is the one that is returned when reading the
|
||
* key. Keys can be deleted from the database, in which case they will no
|
||
* longer be returned when reading keys.
|
||
*
|
||
* Values can be any structured-serializable JavaScript value (objects,
|
||
* arrays, strings, numbers, etc.). The special value {@linkcode Deno.KvU64}
|
||
* can be used to store 64-bit unsigned integers in the database. This special
|
||
* value can not be nested within other objects or arrays. In addition to the
|
||
* regular database mutation operations, the unsigned 64-bit integer value
|
||
* also supports `sum`, `max`, and `min` mutations.
|
||
*
|
||
* Keys are versioned on write by assigning the key an ever-increasing
|
||
* "versionstamp". The versionstamp represents the version of a key-value pair
|
||
* in the database at some point in time, and can be used to perform
|
||
* transactional operations on the database without requiring any locking.
|
||
* This is enabled by atomic operations, which can have conditions that ensure
|
||
* that the operation only succeeds if the versionstamp of the key-value pair
|
||
* matches an expected versionstamp.
|
||
*
|
||
* Keys have a maximum length of 2048 bytes after serialization. Values have a
|
||
* maximum length of 64 KiB after serialization. Serialization of both keys
|
||
* and values is somewhat opaque, but one can usually assume that the
|
||
* serialization of any value is about the same length as the resulting string
|
||
* of a JSON serialization of that same value. If theses limits are exceeded,
|
||
* an exception will be thrown.
|
||
*
|
||
* @category KV
|
||
*/
|
||
export class Kv implements Disposable {
|
||
/**
|
||
* Retrieve the value and versionstamp for the given key from the database
|
||
* in the form of a {@linkcode Deno.KvEntryMaybe}. If no value exists for
|
||
* the key, the returned entry will have a `null` value and versionstamp.
|
||
*
|
||
* ```ts
|
||
* const db = await Deno.openKv();
|
||
* const result = await db.get(["foo"]);
|
||
* result.key; // ["foo"]
|
||
* result.value; // "bar"
|
||
* result.versionstamp; // "00000000000000010000"
|
||
* ```
|
||
*
|
||
* The `consistency` option can be used to specify the consistency level
|
||
* for the read operation. The default consistency level is "strong". Some
|
||
* use cases can benefit from using a weaker consistency level. For more
|
||
* information on consistency levels, see the documentation for
|
||
* {@linkcode Deno.KvConsistencyLevel}.
|
||
*/
|
||
get<T = unknown>(
|
||
key: KvKey,
|
||
options?: { consistency?: KvConsistencyLevel },
|
||
): Promise<KvEntryMaybe<T>>;
|
||
|
||
/**
|
||
* Retrieve multiple values and versionstamps from the database in the form
|
||
* of an array of {@linkcode Deno.KvEntryMaybe} objects. The returned array
|
||
* will have the same length as the `keys` array, and the entries will be in
|
||
* the same order as the keys. If no value exists for a given key, the
|
||
* returned entry will have a `null` value and versionstamp.
|
||
*
|
||
* ```ts
|
||
* const db = await Deno.openKv();
|
||
* const result = await db.getMany([["foo"], ["baz"]]);
|
||
* result[0].key; // ["foo"]
|
||
* result[0].value; // "bar"
|
||
* result[0].versionstamp; // "00000000000000010000"
|
||
* result[1].key; // ["baz"]
|
||
* result[1].value; // null
|
||
* result[1].versionstamp; // null
|
||
* ```
|
||
*
|
||
* The `consistency` option can be used to specify the consistency level
|
||
* for the read operation. The default consistency level is "strong". Some
|
||
* use cases can benefit from using a weaker consistency level. For more
|
||
* information on consistency levels, see the documentation for
|
||
* {@linkcode Deno.KvConsistencyLevel}.
|
||
*/
|
||
getMany<T extends readonly unknown[]>(
|
||
keys: readonly [...{ [K in keyof T]: KvKey }],
|
||
options?: { consistency?: KvConsistencyLevel },
|
||
): Promise<{ [K in keyof T]: KvEntryMaybe<T[K]> }>;
|
||
/**
|
||
* Set the value for the given key in the database. If a value already
|
||
* exists for the key, it will be overwritten.
|
||
*
|
||
* ```ts
|
||
* const db = await Deno.openKv();
|
||
* await db.set(["foo"], "bar");
|
||
* ```
|
||
*
|
||
* Optionally an `expireIn` option can be specified to set a time-to-live
|
||
* (TTL) for the key. The TTL is specified in milliseconds, and the key will
|
||
* be deleted from the database at earliest after the specified number of
|
||
* milliseconds have elapsed. Once the specified duration has passed, the
|
||
* key may still be visible for some additional time. If the `expireIn`
|
||
* option is not specified, the key will not expire.
|
||
*/
|
||
set(
|
||
key: KvKey,
|
||
value: unknown,
|
||
options?: { expireIn?: number },
|
||
): Promise<KvCommitResult>;
|
||
|
||
/**
|
||
* Delete the value for the given key from the database. If no value exists
|
||
* for the key, this operation is a no-op.
|
||
*
|
||
* ```ts
|
||
* const db = await Deno.openKv();
|
||
* await db.delete(["foo"]);
|
||
* ```
|
||
*/
|
||
delete(key: KvKey): Promise<void>;
|
||
|
||
/**
|
||
* Retrieve a list of keys in the database. The returned list is an
|
||
* {@linkcode Deno.KvListIterator} which can be used to iterate over the
|
||
* entries in the database.
|
||
*
|
||
* Each list operation must specify a selector which is used to specify the
|
||
* range of keys to return. The selector can either be a prefix selector, or
|
||
* a range selector:
|
||
*
|
||
* - A prefix selector selects all keys that start with the given prefix of
|
||
* key parts. For example, the selector `["users"]` will select all keys
|
||
* that start with the prefix `["users"]`, such as `["users", "alice"]`
|
||
* and `["users", "bob"]`. Note that you can not partially match a key
|
||
* part, so the selector `["users", "a"]` will not match the key
|
||
* `["users", "alice"]`. A prefix selector may specify a `start` key that
|
||
* is used to skip over keys that are lexicographically less than the
|
||
* start key.
|
||
* - A range selector selects all keys that are lexicographically between
|
||
* the given start and end keys (including the start, and excluding the
|
||
* end). For example, the selector `["users", "a"], ["users", "n"]` will
|
||
* select all keys that start with the prefix `["users"]` and have a
|
||
* second key part that is lexicographically between `a` and `n`, such as
|
||
* `["users", "alice"]`, `["users", "bob"]`, and `["users", "mike"]`, but
|
||
* not `["users", "noa"]` or `["users", "zoe"]`.
|
||
*
|
||
* ```ts
|
||
* const db = await Deno.openKv();
|
||
* const entries = db.list({ prefix: ["users"] });
|
||
* for await (const entry of entries) {
|
||
* entry.key; // ["users", "alice"]
|
||
* entry.value; // { name: "Alice" }
|
||
* entry.versionstamp; // "00000000000000010000"
|
||
* }
|
||
* ```
|
||
*
|
||
* The `options` argument can be used to specify additional options for the
|
||
* list operation. See the documentation for {@linkcode Deno.KvListOptions}
|
||
* for more information.
|
||
*/
|
||
list<T = unknown>(
|
||
selector: KvListSelector,
|
||
options?: KvListOptions,
|
||
): KvListIterator<T>;
|
||
|
||
/**
|
||
* Add a value into the database queue to be delivered to the queue
|
||
* listener via {@linkcode Deno.Kv.listenQueue}.
|
||
*
|
||
* ```ts
|
||
* const db = await Deno.openKv();
|
||
* await db.enqueue("bar");
|
||
* ```
|
||
*
|
||
* The `delay` option can be used to specify the delay (in milliseconds)
|
||
* of the value delivery. The default delay is 0, which means immediate
|
||
* delivery.
|
||
*
|
||
* ```ts
|
||
* const db = await Deno.openKv();
|
||
* await db.enqueue("bar", { delay: 60000 });
|
||
* ```
|
||
*
|
||
* The `keysIfUndelivered` option can be used to specify the keys to
|
||
* be set if the value is not successfully delivered to the queue
|
||
* listener after several attempts. The values are set to the value of
|
||
* the queued message.
|
||
*
|
||
* ```ts
|
||
* const db = await Deno.openKv();
|
||
* await db.enqueue("bar", { keysIfUndelivered: [["foo", "bar"]] });
|
||
* ```
|
||
*/
|
||
enqueue(
|
||
value: unknown,
|
||
options?: { delay?: number; keysIfUndelivered?: Deno.KvKey[] },
|
||
): Promise<KvCommitResult>;
|
||
|
||
/**
|
||
* Listen for queue values to be delivered from the database queue, which
|
||
* were enqueued with {@linkcode Deno.Kv.enqueue}. The provided handler
|
||
* callback is invoked on every dequeued value. A failed callback
|
||
* invocation is automatically retried multiple times until it succeeds
|
||
* or until the maximum number of retries is reached.
|
||
*
|
||
* ```ts
|
||
* const db = await Deno.openKv();
|
||
* db.listenQueue(async (msg: unknown) => {
|
||
* await db.set(["foo"], msg);
|
||
* });
|
||
* ```
|
||
*/
|
||
listenQueue(
|
||
handler: (value: unknown) => Promise<void> | void,
|
||
): Promise<void>;
|
||
|
||
/**
|
||
* Create a new {@linkcode Deno.AtomicOperation} object which can be used to
|
||
* perform an atomic transaction on the database. This does not perform any
|
||
* operations on the database - the atomic transaction must be committed
|
||
* explicitly using the {@linkcode Deno.AtomicOperation.commit} method once
|
||
* all checks and mutations have been added to the operation.
|
||
*/
|
||
atomic(): AtomicOperation;
|
||
|
||
/**
|
||
* Close the database connection. This will prevent any further operations
|
||
* from being performed on the database, and interrupt any in-flight
|
||
* operations immediately.
|
||
*/
|
||
close(): void;
|
||
|
||
[Symbol.dispose](): void;
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Wrapper type for 64-bit unsigned integers for use as values in a
|
||
* {@linkcode Deno.Kv}.
|
||
*
|
||
* @category KV
|
||
*/
|
||
export class KvU64 {
|
||
/** Create a new `KvU64` instance from the given bigint value. If the value
|
||
* is signed or greater than 64-bits, an error will be thrown. */
|
||
constructor(value: bigint);
|
||
/** The value of this unsigned 64-bit integer, represented as a bigint. */
|
||
readonly value: bigint;
|
||
}
|
||
|
||
/** An instance of the server created using `Deno.serve()` API.
|
||
*
|
||
* @category HTTP Server
|
||
*/
|
||
export interface HttpServer {
|
||
/** Gracefully close the server. No more new connections will be accepted,
|
||
* while pending requests will be allowed to finish.
|
||
*/
|
||
shutdown(): Promise<void>;
|
||
}
|
||
|
||
export interface ServeUnixOptions {
|
||
/** The unix domain socket path to listen on. */
|
||
path: string;
|
||
|
||
/** An {@linkcode AbortSignal} to close the server and all connections. */
|
||
signal?: AbortSignal;
|
||
|
||
/** The handler to invoke when route handlers throw an error. */
|
||
onError?: (error: unknown) => Response | Promise<Response>;
|
||
|
||
/** The callback which is called when the server starts listening. */
|
||
onListen?: (params: { path: string }) => void;
|
||
}
|
||
|
||
/** Information for a unix domain socket HTTP request.
|
||
*
|
||
* @category HTTP Server
|
||
*/
|
||
export interface ServeUnixHandlerInfo {
|
||
/** The remote address of the connection. */
|
||
remoteAddr: Deno.UnixAddr;
|
||
}
|
||
|
||
/** A handler for unix domain socket HTTP requests. Consumes a request and returns a response.
|
||
*
|
||
* If a handler throws, the server calling the handler will assume the impact
|
||
* of the error is isolated to the individual request. It will catch the error
|
||
* and if necessary will close the underlying connection.
|
||
*
|
||
* @category HTTP Server
|
||
*/
|
||
export type ServeUnixHandler = (
|
||
request: Request,
|
||
info: ServeUnixHandlerInfo,
|
||
) => Response | Promise<Response>;
|
||
|
||
/**
|
||
* @category HTTP Server
|
||
*/
|
||
export interface ServeUnixInit {
|
||
/** The handler to invoke to process each incoming request. */
|
||
handler: ServeUnixHandler;
|
||
}
|
||
|
||
/** Serves HTTP requests with the given option bag and handler.
|
||
*
|
||
* You can specify the socket path with `path` option.
|
||
*
|
||
* ```ts
|
||
* Deno.serve(
|
||
* { path: "path/to/socket" },
|
||
* (_req) => new Response("Hello, world")
|
||
* );
|
||
* ```
|
||
*
|
||
* You can stop the server with an {@linkcode AbortSignal}. The abort signal
|
||
* needs to be passed as the `signal` option in the options bag. The server
|
||
* aborts when the abort signal is aborted. To wait for the server to close,
|
||
* await the promise returned from the `Deno.serve` API.
|
||
*
|
||
* ```ts
|
||
* const ac = new AbortController();
|
||
*
|
||
* const server = Deno.serve(
|
||
* { signal: ac.signal, path: "path/to/socket" },
|
||
* (_req) => new Response("Hello, world")
|
||
* );
|
||
* server.finished.then(() => console.log("Server closed"));
|
||
*
|
||
* console.log("Closing server...");
|
||
* ac.abort();
|
||
* ```
|
||
*
|
||
* By default `Deno.serve` prints the message
|
||
* `Listening on path/to/socket` on listening. If you like to
|
||
* change this behavior, you can specify a custom `onListen` callback.
|
||
*
|
||
* ```ts
|
||
* Deno.serve({
|
||
* onListen({ path }) {
|
||
* console.log(`Server started at ${path}`);
|
||
* // ... more info specific to your server ..
|
||
* },
|
||
* path: "path/to/socket",
|
||
* }, (_req) => new Response("Hello, world"));
|
||
* ```
|
||
*
|
||
* @category HTTP Server
|
||
*/
|
||
export function serve(
|
||
options: ServeUnixOptions,
|
||
handler: ServeUnixHandler,
|
||
): Server;
|
||
/** Serves HTTP requests with the given option bag.
|
||
*
|
||
* You can specify an object with the path option, which is the
|
||
* unix domain socket to listen on.
|
||
*
|
||
* ```ts
|
||
* const ac = new AbortController();
|
||
*
|
||
* const server = Deno.serve({
|
||
* path: "path/to/socket",
|
||
* handler: (_req) => new Response("Hello, world"),
|
||
* signal: ac.signal,
|
||
* onListen({ path }) {
|
||
* console.log(`Server started at ${path}`);
|
||
* },
|
||
* });
|
||
* server.finished.then(() => console.log("Server closed"));
|
||
*
|
||
* console.log("Closing server...");
|
||
* ac.abort();
|
||
* ```
|
||
*
|
||
* @category HTTP Server
|
||
*/
|
||
export function serve(
|
||
options: ServeUnixInit & ServeUnixOptions,
|
||
): Server;
|
||
|
||
/**
|
||
* A namespace containing runtime APIs available in Jupyter notebooks.
|
||
*
|
||
* When accessed outside of Jupyter notebook context an error will be thrown.
|
||
*
|
||
* @category Jupyter */
|
||
export namespace jupyter {
|
||
/** @category Jupyter */
|
||
export interface DisplayOptions {
|
||
raw?: boolean;
|
||
update?: boolean;
|
||
display_id?: string;
|
||
}
|
||
|
||
type VegaObject = {
|
||
$schema: string;
|
||
[key: string]: unknown;
|
||
};
|
||
|
||
/**
|
||
* A collection of supported media types and data for Jupyter frontends.
|
||
*
|
||
* @category Jupyter
|
||
*/
|
||
export type MediaBundle = {
|
||
"text/plain"?: string;
|
||
"text/html"?: string;
|
||
"image/svg+xml"?: string;
|
||
"text/markdown"?: string;
|
||
"application/javascript"?: string;
|
||
|
||
// Images (per Jupyter spec) must be base64 encoded. We could _allow_
|
||
// accepting Uint8Array or ArrayBuffer within `display` calls, however we still
|
||
// must encode them for jupyter.
|
||
"image/png"?: string; // WISH: Uint8Array | ArrayBuffer
|
||
"image/jpeg"?: string; // WISH: Uint8Array | ArrayBuffer
|
||
"image/gif"?: string; // WISH: Uint8Array | ArrayBuffer
|
||
"application/pdf"?: string; // WISH: Uint8Array | ArrayBuffer
|
||
|
||
// NOTE: all JSON types must be objects at the top level (no arrays, strings, or other primitives)
|
||
"application/json"?: object;
|
||
"application/geo+json"?: object;
|
||
"application/vdom.v1+json"?: object;
|
||
"application/vnd.plotly.v1+json"?: object;
|
||
"application/vnd.vega.v5+json"?: VegaObject;
|
||
"application/vnd.vegalite.v4+json"?: VegaObject;
|
||
"application/vnd.vegalite.v5+json"?: VegaObject;
|
||
|
||
// Must support a catch all for custom media types / mimetypes
|
||
[key: string]: string | object | undefined;
|
||
};
|
||
|
||
/** @category Jupyter */
|
||
export const $display: unique symbol;
|
||
|
||
/** @category Jupyter */
|
||
export type Displayable = {
|
||
[$display]: () => MediaBundle | Promise<MediaBundle>;
|
||
};
|
||
|
||
/**
|
||
* Display function for Jupyter Deno Kernel.
|
||
* Mimics the behavior of IPython's `display(obj, raw=True)` function to allow
|
||
* asynchronous displaying of objects in Jupyter.
|
||
*
|
||
* @param obj - The object to be displayed
|
||
* @param options - Display options with a default { raw: true }
|
||
* @category Jupyter
|
||
*/
|
||
export function display(obj: unknown, options?: DisplayOptions): void;
|
||
|
||
/**
|
||
* Show Markdown in Jupyter frontends with a tagged template function.
|
||
*
|
||
* Takes a template string and returns a displayable object for Jupyter frontends.
|
||
*
|
||
* @example
|
||
* Create a Markdown view.
|
||
*
|
||
* ```typescript
|
||
* const { md } = Deno.jupyter;
|
||
* md`# Notebooks in TypeScript via Deno 
|
||
*
|
||
* * TypeScript ${Deno.version.typescript}
|
||
* * V8 ${Deno.version.v8}
|
||
* * Deno ${Deno.version.deno}
|
||
*
|
||
* Interactive compute with Jupyter _built into Deno_!
|
||
* `
|
||
* ```
|
||
*
|
||
* @category Jupyter
|
||
*/
|
||
export function md(
|
||
strings: TemplateStringsArray,
|
||
...values: unknown[]
|
||
): Displayable;
|
||
|
||
/**
|
||
* Show HTML in Jupyter frontends with a tagged template function.
|
||
*
|
||
* Takes a template string and returns a displayable object for Jupyter frontends.
|
||
*
|
||
* @example
|
||
* Create an HTML view.
|
||
* ```typescript
|
||
* const { html } = Deno.jupyter;
|
||
* html`<h1>Hello, world!</h1>`
|
||
* ```
|
||
*
|
||
* @category Jupyter
|
||
*/
|
||
export function html(
|
||
strings: TemplateStringsArray,
|
||
...values: unknown[]
|
||
): Displayable;
|
||
|
||
/**
|
||
* SVG Tagged Template Function.
|
||
*
|
||
* Takes a template string and returns a displayable object for Jupyter frontends.
|
||
*
|
||
* Example usage:
|
||
*
|
||
* svg`<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100">
|
||
* <circle cx="50" cy="50" r="40" stroke="green" stroke-width="4" fill="yellow" />
|
||
* </svg>`
|
||
*
|
||
* @category Jupyter
|
||
*/
|
||
export function svg(
|
||
strings: TemplateStringsArray,
|
||
...values: unknown[]
|
||
): Displayable;
|
||
|
||
/**
|
||
* Format an object for displaying in Deno
|
||
*
|
||
* @param obj - The object to be displayed
|
||
* @returns MediaBundle
|
||
*
|
||
* @category Jupyter
|
||
*/
|
||
export function format(obj: unknown): MediaBundle;
|
||
|
||
/**
|
||
* Broadcast a message on IO pub channel.
|
||
*
|
||
* ```
|
||
* await Deno.jupyter.broadcast("display_data", {
|
||
* data: { "text/html": "<b>Processing.</b>" },
|
||
* metadata: {},
|
||
* transient: { display_id: "progress" }
|
||
* });
|
||
*
|
||
* await new Promise((resolve) => setTimeout(resolve, 500));
|
||
*
|
||
* await Deno.jupyter.broadcast("update_display_data", {
|
||
* data: { "text/html": "<b>Processing..</b>" },
|
||
* metadata: {},
|
||
* transient: { display_id: "progress" }
|
||
* });
|
||
* ```
|
||
*
|
||
* @category Jupyter */
|
||
export function broadcast(
|
||
msgType: string,
|
||
content: Record<string, unknown>,
|
||
extra?: {
|
||
metadata?: Record<string, unknown>;
|
||
buffers?: Uint8Array[];
|
||
},
|
||
): Promise<void>;
|
||
}
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* The [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API)
|
||
* which also supports setting a {@linkcode Deno.HttpClient} which provides a
|
||
* way to connect via proxies and use custom TLS certificates.
|
||
*
|
||
* @tags allow-net, allow-read
|
||
* @category Fetch API
|
||
*/
|
||
declare function fetch(
|
||
input: Request | URL | string,
|
||
init?: RequestInit & { client: Deno.HttpClient },
|
||
): Promise<Response>;
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* @category Web Workers
|
||
*/
|
||
declare interface WorkerOptions {
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* Configure permissions options to change the level of access the worker will
|
||
* have. By default it will have no permissions. Note that the permissions
|
||
* of a worker can't be extended beyond its parent's permissions reach.
|
||
*
|
||
* - `"inherit"` will take the permissions of the thread the worker is created
|
||
* in.
|
||
* - `"none"` will use the default behavior and have no permission
|
||
* - A list of routes can be provided that are relative to the file the worker
|
||
* is created in to limit the access of the worker (read/write permissions
|
||
* only)
|
||
*
|
||
* Example:
|
||
*
|
||
* ```ts
|
||
* // mod.ts
|
||
* const worker = new Worker(
|
||
* new URL("deno_worker.ts", import.meta.url).href, {
|
||
* type: "module",
|
||
* deno: {
|
||
* permissions: {
|
||
* read: true,
|
||
* },
|
||
* },
|
||
* }
|
||
* );
|
||
* ```
|
||
*/
|
||
deno?: {
|
||
/** Set to `"none"` to disable all the permissions in the worker. */
|
||
permissions?: Deno.PermissionOptions;
|
||
};
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* @category Web Sockets
|
||
*/
|
||
declare interface WebSocketStreamOptions {
|
||
protocols?: string[];
|
||
signal?: AbortSignal;
|
||
headers?: HeadersInit;
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* @category Web Sockets
|
||
*/
|
||
declare interface WebSocketConnection {
|
||
readable: ReadableStream<string | Uint8Array>;
|
||
writable: WritableStream<string | Uint8Array>;
|
||
extensions: string;
|
||
protocol: string;
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* @category Web Sockets
|
||
*/
|
||
declare interface WebSocketCloseInfo {
|
||
code?: number;
|
||
reason?: string;
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* @tags allow-net
|
||
* @category Web Sockets
|
||
*/
|
||
declare interface WebSocketStream {
|
||
url: string;
|
||
opened: Promise<WebSocketConnection>;
|
||
closed: Promise<WebSocketCloseInfo>;
|
||
close(closeInfo?: WebSocketCloseInfo): void;
|
||
}
|
||
|
||
/** **UNSTABLE**: New API, yet to be vetted.
|
||
*
|
||
* @tags allow-net
|
||
* @category Web Sockets
|
||
*/
|
||
declare var WebSocketStream: {
|
||
readonly prototype: WebSocketStream;
|
||
new (url: string, options?: WebSocketStreamOptions): WebSocketStream;
|
||
};
|