p-timeout/index.d.ts

73 lines
2.2 KiB
TypeScript

declare class TimeoutErrorClass extends Error {
readonly name: 'TimeoutError';
constructor(message?: string);
}
declare namespace pTimeout {
type TimeoutError = TimeoutErrorClass;
}
declare const pTimeout: {
/**
Timeout a promise after a specified amount of time.
If you pass in a cancelable promise, specifically a promise with a `.cancel()` method, that method will be called when the `pTimeout` promise times out.
@param input - Promise to decorate.
@param milliseconds - Milliseconds before timing out.
@param message - Specify a custom error message or error. If you do a custom error, it's recommended to sub-class `pTimeout.TimeoutError`. Default: `'Promise timed out after 50 milliseconds'`.
@returns A decorated `input` that times out after `milliseconds` time.
@example
```
import delay = require('delay');
import pTimeout = require('p-timeout');
const delayedPromise = delay(200);
pTimeout(delayedPromise, 50).then(() => 'foo');
//=> [TimeoutError: Promise timed out after 50 milliseconds]
```
*/
<ValueType>(
input: PromiseLike<ValueType>,
milliseconds: number,
message?: string | Error
): Promise<ValueType>;
/**
Timeout a promise after a specified amount of time.
If you pass in a cancelable promise, specifically a promise with a `.cancel()` method, that method will be called when the `pTimeout` promise times out.
@param input - Promise to decorate.
@param milliseconds - Milliseconds before timing out. Passing `Infinity` will cause it to never time out.
@param fallback - Do something other than rejecting with an error on timeout. You could for example retry.
@returns A decorated `input` that times out after `milliseconds` time.
@example
```
import delay = require('delay');
import pTimeout = require('p-timeout');
const delayedPromise = () => delay(200);
pTimeout(delayedPromise(), 50, () => {
return pTimeout(delayedPromise(), 300);
});
```
*/
<ValueType, ReturnType>(
input: PromiseLike<ValueType>,
milliseconds: number,
fallback: () => ReturnType | Promise<ReturnType>
): Promise<ValueType | ReturnType>;
TimeoutError: typeof TimeoutErrorClass;
// TODO: Remove this for the next major release
default: typeof pTimeout;
};
export = pTimeout;