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- import { HandlerCallbackOptions, WorkboxPlugin, WorkboxPluginCallbackParam } from 'workbox-core/types.js';
- import { Strategy } from './Strategy.js';
- import './_version.js';
- /**
- * A class created every time a Strategy instance instance calls
- * [handle()]{@link module:workbox-strategies.Strategy~handle} or
- * [handleAll()]{@link module:workbox-strategies.Strategy~handleAll} that wraps all fetch and
- * cache actions around plugin callbacks and keeps track of when the strategy
- * is "done" (i.e. all added `event.waitUntil()` promises have resolved).
- *
- * @memberof module:workbox-strategies
- */
- declare class StrategyHandler {
- request: Request;
- url?: URL;
- event: ExtendableEvent;
- params?: any;
- private _cacheKeys;
- private readonly _strategy;
- private readonly _extendLifetimePromises;
- private readonly _handlerDeferred;
- private readonly _plugins;
- private readonly _pluginStateMap;
- /**
- * Creates a new instance associated with the passed strategy and event
- * that's handling the request.
- *
- * The constructor also initializes the state that will be passed to each of
- * the plugins handling this request.
- *
- * @param {module:workbox-strategies.Strategy} strategy
- * @param {Object} options
- * @param {Request|string} options.request A request to run this strategy for.
- * @param {ExtendableEvent} options.event The event associated with the
- * request.
- * @param {URL} [options.url]
- * @param {*} [options.params]
- * [match callback]{@link module:workbox-routing~matchCallback},
- * (if applicable).
- */
- constructor(strategy: Strategy, options: HandlerCallbackOptions);
- /**
- * Fetches a given request (and invokes any applicable plugin callback
- * methods) using the `fetchOptions` (for non-navigation requests) and
- * `plugins` defined on the `Strategy` object.
- *
- * The following plugin lifecycle methods are invoked when using this method:
- * - `requestWillFetch()`
- * - `fetchDidSucceed()`
- * - `fetchDidFail()`
- *
- * @param {Request|string} input The URL or request to fetch.
- * @return {Promise<Response>}
- */
- fetch(input: RequestInfo): Promise<Response>;
- /**
- * Calls `this.fetch()` and (in the background) runs `this.cachePut()` on
- * the response generated by `this.fetch()`.
- *
- * The call to `this.cachePut()` automatically invokes `this.waitUntil()`,
- * so you do not have to manually call `waitUntil()` on the event.
- *
- * @param {Request|string} input The request or URL to fetch and cache.
- * @return {Promise<Response>}
- */
- fetchAndCachePut(input: RequestInfo): Promise<Response>;
- /**
- * Matches a request from the cache (and invokes any applicable plugin
- * callback methods) using the `cacheName`, `matchOptions`, and `plugins`
- * defined on the strategy object.
- *
- * The following plugin lifecycle methods are invoked when using this method:
- * - cacheKeyWillByUsed()
- * - cachedResponseWillByUsed()
- *
- * @param {Request|string} key The Request or URL to use as the cache key.
- * @return {Promise<Response|undefined>} A matching response, if found.
- */
- cacheMatch(key: RequestInfo): Promise<Response | undefined>;
- /**
- * Puts a request/response pair in the cache (and invokes any applicable
- * plugin callback methods) using the `cacheName` and `plugins` defined on
- * the strategy object.
- *
- * The following plugin lifecycle methods are invoked when using this method:
- * - cacheKeyWillByUsed()
- * - cacheWillUpdate()
- * - cacheDidUpdate()
- *
- * @param {Request|string} key The request or URL to use as the cache key.
- * @param {Response} response The response to cache.
- * @return {Promise<boolean>} `false` if a cacheWillUpdate caused the response
- * not be cached, and `true` otherwise.
- */
- cachePut(key: RequestInfo, response: Response): Promise<boolean>;
- /**
- * Checks the list of plugins for the `cacheKeyWillBeUsed` callback, and
- * executes any of those callbacks found in sequence. The final `Request`
- * object returned by the last plugin is treated as the cache key for cache
- * reads and/or writes. If no `cacheKeyWillBeUsed` plugin callbacks have
- * been registered, the passed request is returned unmodified
- *
- * @param {Request} request
- * @param {string} mode
- * @return {Promise<Request>}
- */
- getCacheKey(request: Request, mode: 'read' | 'write'): Promise<Request>;
- /**
- * Returns true if the strategy has at least one plugin with the given
- * callback.
- *
- * @param {string} name The name of the callback to check for.
- * @return {boolean}
- */
- hasCallback<C extends keyof WorkboxPlugin>(name: C): boolean;
- /**
- * Runs all plugin callbacks matching the given name, in order, passing the
- * given param object (merged ith the current plugin state) as the only
- * argument.
- *
- * Note: since this method runs all plugins, it's not suitable for cases
- * where the return value of a callback needs to be applied prior to calling
- * the next callback. See
- * [`iterateCallbacks()`]{@link module:workbox-strategies.StrategyHandler#iterateCallbacks}
- * below for how to handle that case.
- *
- * @param {string} name The name of the callback to run within each plugin.
- * @param {Object} param The object to pass as the first (and only) param
- * when executing each callback. This object will be merged with the
- * current plugin state prior to callback execution.
- */
- runCallbacks<C extends keyof NonNullable<WorkboxPlugin>>(name: C, param: Omit<WorkboxPluginCallbackParam[C], 'state'>): Promise<void>;
- /**
- * Accepts a callback and returns an iterable of matching plugin callbacks,
- * where each callback is wrapped with the current handler state (i.e. when
- * you call each callback, whatever object parameter you pass it will
- * be merged with the plugin's current state).
- *
- * @param {string} name The name fo the callback to run
- * @return {Array<Function>}
- */
- iterateCallbacks<C extends keyof WorkboxPlugin>(name: C): Generator<NonNullable<WorkboxPlugin[C]>>;
- /**
- * Adds a promise to the
- * [extend lifetime promises]{@link https://w3c.github.io/ServiceWorker/#extendableevent-extend-lifetime-promises}
- * of the event event associated with the request being handled (usually a
- * `FetchEvent`).
- *
- * Note: you can await
- * [`doneWaiting()`]{@link module:workbox-strategies.StrategyHandler~doneWaiting}
- * to know when all added promises have settled.
- *
- * @param {Promise} promise A promise to add to the extend lifetime promises
- * of the event that triggered the request.
- */
- waitUntil<T>(promise: Promise<T>): Promise<T>;
- /**
- * Returns a promise that resolves once all promises passed to
- * [`waitUntil()`]{@link module:workbox-strategies.StrategyHandler~waitUntil}
- * have settled.
- *
- * Note: any work done after `doneWaiting()` settles should be manually
- * passed to an event's `waitUntil()` method (not this handler's
- * `waitUntil()` method), otherwise the service worker thread my be killed
- * prior to your work completing.
- */
- doneWaiting(): Promise<void>;
- /**
- * Stops running the strategy and immediately resolves any pending
- * `waitUntil()` promises.
- */
- destroy(): void;
- /**
- * This method will call cacheWillUpdate on the available plugins (or use
- * status === 200) to determine if the Response is safe and valid to cache.
- *
- * @param {Request} options.request
- * @param {Response} options.response
- * @return {Promise<Response|undefined>}
- *
- * @private
- */
- _ensureResponseSafeToCache(response: Response): Promise<Response | undefined>;
- }
- export { StrategyHandler };
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