@anglr/rest
Version:
Angular module representing rest services
38 lines • 1.83 kB
JavaScript
import { isPresent } from '@jscrpt/common';
import { of, map } from 'rxjs';
import { AdvancedCacheService } from '../services';
/**
* Middleware that is used for storing and restoring response from advanced cache service
*/
export class AdvancedCacheMiddleware {
//######################### public static properties #########################
/**
* String identification of middleware
*/
static { this.id = 'AdvancedCacheMiddleware'; }
//######################### public methods - implementation of RestMiddleware #########################
/**
* Runs code that is defined for this rest middleware, in this method you can modify request and response
* @param this - Method is bound to RESTClient
* @param id - Unique id that identifies request method
* @param target - Prototype of class that are decorators applied to
* @param methodName - Name of method that is being modified
* @param descriptor - Descriptor of method that is being modified
* @param args - Array of arguments passed to called method
* @param request - Http request that you can modify
* @param next - Used for calling next middleware with modified request
*/
run(_id, _target, _methodName, descriptor, _args, request, next) {
const $this = this;
$this.ɵCache ??= this.injector.get(AdvancedCacheService, null);
if (!$this.ɵCache) {
return next(request);
}
const cachedResponse = $this.ɵCache.get(descriptor.key, request);
if (isPresent(cachedResponse)) {
return of(cachedResponse);
}
return next(request).pipe(map(response => $this.ɵCache?.add(descriptor.key, request, response, { validUntil: descriptor.validUntil })));
}
}
//# sourceMappingURL=advancedCache.middleware.js.map