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108 lines
5.0 KiB
108 lines
5.0 KiB
2 years ago
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import { HandlerCallbackOptions, RouteHandlerObject, WorkboxPlugin } from 'workbox-core/types.js';
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import { StrategyHandler } from './StrategyHandler.js';
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import './_version.js';
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export interface StrategyOptions {
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cacheName?: string;
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plugins?: WorkboxPlugin[];
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fetchOptions?: RequestInit;
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matchOptions?: CacheQueryOptions;
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}
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/**
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* An abstract base class that all other strategy classes must extend from:
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*
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* @memberof workbox-strategies
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*/
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declare abstract class Strategy implements RouteHandlerObject {
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cacheName: string;
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plugins: WorkboxPlugin[];
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fetchOptions?: RequestInit;
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matchOptions?: CacheQueryOptions;
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protected abstract _handle(request: Request, handler: StrategyHandler): Promise<Response | undefined>;
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/**
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* Creates a new instance of the strategy and sets all documented option
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* properties as public instance properties.
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*
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* Note: if a custom strategy class extends the base Strategy class and does
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* not need more than these properties, it does not need to define its own
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* constructor.
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*
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* @param {Object} [options]
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* @param {string} [options.cacheName] Cache name to store and retrieve
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* requests. Defaults to the cache names provided by
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* {@link workbox-core.cacheNames}.
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* @param {Array<Object>} [options.plugins] [Plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}
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* to use in conjunction with this caching strategy.
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* @param {Object} [options.fetchOptions] Values passed along to the
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* [`init`](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Parameters)
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* of [non-navigation](https://github.com/GoogleChrome/workbox/issues/1796)
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* `fetch()` requests made by this strategy.
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* @param {Object} [options.matchOptions] The
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* [`CacheQueryOptions`]{@link https://w3c.github.io/ServiceWorker/#dictdef-cachequeryoptions}
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* for any `cache.match()` or `cache.put()` calls made by this strategy.
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*/
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constructor(options?: StrategyOptions);
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/**
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* Perform a request strategy and returns a `Promise` that will resolve with
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* a `Response`, invoking all relevant plugin callbacks.
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*
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* When a strategy instance is registered with a Workbox
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* {@link workbox-routing.Route}, this method is automatically
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* called when the route matches.
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*
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* Alternatively, this method can be used in a standalone `FetchEvent`
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* listener by passing it to `event.respondWith()`.
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*
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* @param {FetchEvent|Object} options A `FetchEvent` or an object with the
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* properties listed below.
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* @param {Request|string} options.request A request to run this strategy for.
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* @param {ExtendableEvent} options.event The event associated with the
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* request.
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* @param {URL} [options.url]
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* @param {*} [options.params]
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*/
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handle(options: FetchEvent | HandlerCallbackOptions): Promise<Response>;
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/**
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* Similar to {@link workbox-strategies.Strategy~handle}, but
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* instead of just returning a `Promise` that resolves to a `Response` it
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* it will return an tuple of `[response, done]` promises, where the former
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* (`response`) is equivalent to what `handle()` returns, and the latter is a
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* Promise that will resolve once any promises that were added to
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* `event.waitUntil()` as part of performing the strategy have completed.
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*
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* You can await the `done` promise to ensure any extra work performed by
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* the strategy (usually caching responses) completes successfully.
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*
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* @param {FetchEvent|Object} options A `FetchEvent` or an object with the
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* properties listed below.
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* @param {Request|string} options.request A request to run this strategy for.
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* @param {ExtendableEvent} options.event The event associated with the
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* request.
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* @param {URL} [options.url]
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* @param {*} [options.params]
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* @return {Array<Promise>} A tuple of [response, done]
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* promises that can be used to determine when the response resolves as
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* well as when the handler has completed all its work.
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*/
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handleAll(options: FetchEvent | HandlerCallbackOptions): [Promise<Response>, Promise<void>];
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_getResponse(handler: StrategyHandler, request: Request, event: ExtendableEvent): Promise<Response>;
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_awaitComplete(responseDone: Promise<Response>, handler: StrategyHandler, request: Request, event: ExtendableEvent): Promise<void>;
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}
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export { Strategy };
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/**
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* Classes extending the `Strategy` based class should implement this method,
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* and leverage the {@link workbox-strategies.StrategyHandler}
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* arg to perform all fetching and cache logic, which will ensure all relevant
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* cache, cache options, fetch options and plugins are used (per the current
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* strategy instance).
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*
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* @name _handle
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* @instance
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* @abstract
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* @function
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* @param {Request} request
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* @param {workbox-strategies.StrategyHandler} handler
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* @return {Promise<Response>}
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*
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* @memberof workbox-strategies.Strategy
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*/
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