Urara-Blog/node_modules/.pnpm-store/v3/files/16/e81f1c8f50e03a02812950afbf30c84b23564e23df477c288a2eef8ee85392013ce4860d8f13b4d23ceca47a6ced1d04e1d88b1823c7dc123e0291f17ba4cb
2022-08-14 01:14:53 +08:00

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/*
Copyright 2018 Google LLC
Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.
*/
import {assert} from 'workbox-core/_private/assert.js';
import {logger} from 'workbox-core/_private/logger.js';
import {timeout} from 'workbox-core/_private/timeout.js';
import {WorkboxError} from 'workbox-core/_private/WorkboxError.js';
import {Strategy, StrategyOptions} from './Strategy.js';
import {StrategyHandler} from './StrategyHandler.js';
import {messages} from './utils/messages.js';
import './_version.js';
interface NetworkOnlyOptions
extends Omit<StrategyOptions, 'cacheName' | 'matchOptions'> {
networkTimeoutSeconds?: number;
}
/**
* An implementation of a
* [network-only](https://developer.chrome.com/docs/workbox/caching-strategies-overview/#network-only)
* request strategy.
*
* This class is useful if you want to take advantage of any
* [Workbox plugins](https://developer.chrome.com/docs/workbox/using-plugins/).
*
* If the network request fails, this will throw a `WorkboxError` exception.
*
* @extends workbox-strategies.Strategy
* @memberof workbox-strategies
*/
class NetworkOnly extends Strategy {
private readonly _networkTimeoutSeconds: number;
/**
* @param {Object} [options]
* @param {Array<Object>} [options.plugins] [Plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}
* to use in conjunction with this caching strategy.
* @param {Object} [options.fetchOptions] Values passed along to the
* [`init`](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Parameters)
* of [non-navigation](https://github.com/GoogleChrome/workbox/issues/1796)
* `fetch()` requests made by this strategy.
* @param {number} [options.networkTimeoutSeconds] If set, any network requests
* that fail to respond within the timeout will result in a network error.
*/
constructor(options: NetworkOnlyOptions = {}) {
super(options);
this._networkTimeoutSeconds = options.networkTimeoutSeconds || 0;
}
/**
* @private
* @param {Request|string} request A request to run this strategy for.
* @param {workbox-strategies.StrategyHandler} handler The event that
* triggered the request.
* @return {Promise<Response>}
*/
async _handle(request: Request, handler: StrategyHandler): Promise<Response> {
if (process.env.NODE_ENV !== 'production') {
assert!.isInstance(request, Request, {
moduleName: 'workbox-strategies',
className: this.constructor.name,
funcName: '_handle',
paramName: 'request',
});
}
let error: Error | undefined = undefined;
let response: Response | undefined;
try {
const promises: Promise<Response | undefined>[] = [
handler.fetch(request),
];
if (this._networkTimeoutSeconds) {
const timeoutPromise = timeout(
this._networkTimeoutSeconds * 1000,
) as Promise<undefined>;
promises.push(timeoutPromise);
}
response = await Promise.race(promises);
if (!response) {
throw new Error(
`Timed out the network response after ` +
`${this._networkTimeoutSeconds} seconds.`,
);
}
} catch (err) {
if (err instanceof Error) {
error = err;
}
}
if (process.env.NODE_ENV !== 'production') {
logger.groupCollapsed(
messages.strategyStart(this.constructor.name, request),
);
if (response) {
logger.log(`Got response from network.`);
} else {
logger.log(`Unable to get a response from the network.`);
}
messages.printFinalResponse(response);
logger.groupEnd();
}
if (!response) {
throw new WorkboxError('no-response', {url: request.url, error});
}
return response;
}
}
export {NetworkOnly, NetworkOnlyOptions};