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/*
* Copyright (c) 2022. Deutsche Telekom AG
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* SPDX-License-Identifier: Apache-2.0
*/
import { HttpEvent, HttpHandler, HttpInterceptor, HttpRequest } from '@angular/common/http';
import { Injectable } from '@angular/core';
import { Observable } from 'rxjs';
/**
* This Interceptor reroutes URLs that are defined in the `matchers` array to [Wiremock](https://wiremock.org/) endpoints.
* This is useful, when the real api is not yet available.
*/
@Injectable()
export class MockInterceptor implements HttpInterceptor {
// list of all available RegExp URL matchers
// !! do not forget to remove matcher when API implementation is ready !!
private readonly matchers: RegExp[] = [
// for example:
// /tiles/
];
intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
let newRequest = request;
if (this.matchers.some(matcher => request.url.match(matcher))) {
console.warn(`MockInterceptor is enabled for URL: '${request.url}'`);
// intentional usage of .replace instead of .replaceAll to replace only first instance
newRequest = request.clone({
url: request.url.replace('/api/', '/mock-api/'),
});
}
return next.handle(newRequest);
}
}
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