A promise represents the eventual result of an asynchronous operation.
The primary way of interacting with a promise is through its then method, which registers callbacks to receive either a promise’s eventual value or the reason why the promise cannot be fulfilled.
- see https://promisesaplus.com/
Constants |
public GuzzleHttp |
public GuzzleHttp |
public GuzzleHttp |
Methods |
public abstract cancel() : void Cancels the promise if possible.
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public abstract getState() : string Get the state of the promise ("pending", "rejected", or "fulfilled"). The three states can be checked against the constants defined on PromiseInterface: PENDING, FULFILLED, and REJECTED. |
public abstract otherwise(callable $onRejected) : GuzzleHttp Appends a rejection handler callback to the promise, and returns a new promise resolving to the return value of the callback if it is called, or to its original fulfillment value if the promise is instead fulfilled.
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public abstract reject( $reason) : void Reject the promise with the given reason.
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public abstract resolve( $value) : void Resolve the promise with the given value.
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public abstract then(?callable $onFulfilled = NULL, ?callable $onRejected = NULL) : GuzzleHttp Appends fulfillment and rejection handlers to the promise, and returns a new promise resolving to the return value of the called handler.
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public abstract wait(bool $unwrap = true) Waits until the promise completes if possible. Pass $unwrap as true to unwrap the result of the promise, either returning the resolved value or throwing the rejected exception. If the promise cannot be waited on, then the promise will be rejected.
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