openaire-library/timeout-interceptor.service.ts

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import {Inject, Injectable, InjectionToken, PLATFORM_ID} from '@angular/core';
import {HttpEvent, HttpHandler, HttpInterceptor, HttpRequest} from '@angular/common/http';
import {Observable} from 'rxjs';
import {timeout} from 'rxjs/operators';
import {isPlatformServer} from "@angular/common";
import {properties} from "../../environments/environment";
export const DEFAULT_TIMEOUT = new InjectionToken<number>('defaultTimeout');
@Injectable()
export class TimeoutInterceptor implements HttpInterceptor {
private static TIMEOUT_WHITELIST = [
properties.csvAPIURL, properties.registryUrl, properties.claimsAPIURL,
properties.searchCrossrefAPIURL, properties.searchDataciteAPIURL,
properties.statisticsAPIURL, properties.monitorStatsFrameUrl];
constructor(@Inject(DEFAULT_TIMEOUT) protected defaultTimeout: number, @Inject(PLATFORM_ID) private platformId: any) {
}
intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
if (req.method !== 'GET' || this.isService(req, TimeoutInterceptor.TIMEOUT_WHITELIST)) {
return next.handle(req);
}
let serverTime = properties.environment == "production" ? 3000 : 4000;
let clientTime = properties.environment == "production" ? 6000 : 12000;
const timeoutValue = isPlatformServer(this.platformId) ? serverTime : clientTime;//req.headers.get('timeout') || this.defaultTimeout;
const timeoutValueNumeric = Number(timeoutValue);
return next.handle(req).pipe(timeout(timeoutValueNumeric));
}
isService(req: HttpRequest<any>, service: string | string[]): boolean {
if (Array.isArray(service)) {
return !!service.find(element => req.url.indexOf(element) !== -1);
} else {
return req.url.indexOf(service) !== -1;
}
}
}