@datocms/rest-client-utils/dist/esm/makeCancelablePromise.js

Utilities for DatoCMS REST API clients

export class CanceledPromiseError extends Error {
    constructor() {
        super('Promise canceled!');
        Object.setPrototypeOf(this, new.target.prototype);
    }
}
export function makeCancelablePromise(promiseOrAsyncFn, onCancel) {
    let cancel = null;
    const cancelable = new Promise((resolve, reject) => {
        cancel = () => {
            try {
                if (onCancel) {
                    onCancel();
                }
                reject(new CanceledPromiseError());
            }
            catch (e) {
                reject(e);
            }
        };
        const promise = typeof promiseOrAsyncFn === 'function'
            ? promiseOrAsyncFn()
            : promiseOrAsyncFn;
        promise.then(resolve, reject);
    });
    if (cancel) {
        cancelable.cancel = cancel;
    }
    return cancelable;
}
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