GoScrobble/web/node_modules/workbox-strategies/NetworkOnly.js

/*
  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 { fetchWrapper } from 'workbox-core/_private/fetchWrapper.js';
import { logger } from 'workbox-core/_private/logger.js';
import { WorkboxError } from 'workbox-core/_private/WorkboxError.js';
import { messages } from './utils/messages.js';
import './_version.js';
/**
 * An implementation of a
 * [network-only]{@link https://developers.google.com/web/fundamentals/instant-and-offline/offline-cookbook/#network-only}
 * request strategy.
 *
 * This class is useful if you want to take advantage of any
 * [Workbox plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}.
 *
 * If the network request fails, this will throw a `WorkboxError` exception.
 *
 * @memberof module:workbox-strategies
 */
class NetworkOnly {
    /**
     * @param {Object} options
     * @param {string} options.cacheName Cache name to store and retrieve
     * requests. Defaults to cache names provided by
     * [workbox-core]{@link module:workbox-core.cacheNames}.
     * @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 all fetch() requests made by this strategy.
     */
    constructor(options = {}) {
        this._plugins = options.plugins || [];
        this._fetchOptions = options.fetchOptions;
    }
    /**
     * This method will perform a request strategy and follows an API that
     * will work with the
     * [Workbox Router]{@link module:workbox-routing.Router}.
     *
     * @param {Object} options
     * @param {Request|string} options.request The request to run this strategy for.
     * @param {Event} [options.event] The event that triggered the request.
     * @return {Promise<Response>}
     */
    async handle({ event, request }) {
        if (typeof request === 'string') {
            request = new Request(request);
        }
        if (process.env.NODE_ENV !== 'production') {
            assert.isInstance(request, Request, {
                moduleName: 'workbox-strategies',
                className: 'NetworkOnly',
                funcName: 'handle',
                paramName: 'request',
            });
        }
        let error;
        let response;
        try {
            response = await fetchWrapper.fetch({
                request,
                event,
                fetchOptions: this._fetchOptions,
                plugins: this._plugins,
            });
        }
        catch (err) {
            error = err;
        }
        if (process.env.NODE_ENV !== 'production') {
            logger.groupCollapsed(messages.strategyStart('NetworkOnly', 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 };