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fix backoff on server error

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This commit is contained in:
Dan Percic 2022-04-04 16:05:45 +03:00
parent 8e15298919
commit 1e6ebf252f
1 changed files with 14 additions and 14 deletions
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28
src/lib/error/server-error-interceptor.ts
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@ -1,7 +1,7 @@
import { HttpErrorResponse, HttpEvent, HttpHandler, HttpInterceptor, HttpRequest, HttpStatusCode } from '@angular/common/http';
import { Inject, Injectable, Optional } from '@angular/core';
import { MonoTypeOperatorFunction, Observable, pipe, retry, throwError, timer } from 'rxjs';
import { catchError, mergeMap, tap } from 'rxjs/operators';
import { MonoTypeOperatorFunction, Observable, retry, throwError, timer } from 'rxjs';
import { catchError, tap } from 'rxjs/operators';
import { MAX_RETRIES_ON_SERVER_ERROR } from './max-retries.token';
import { ErrorService } from './error.service';
import { KeycloakService } from 'keycloak-angular';
@ -16,19 +16,19 @@ function updateSeconds(seconds: number) {
function backoffOnServerError(maxRetries = 3): MonoTypeOperatorFunction<HttpEvent<unknown>> {
let seconds = 0;
const timerExpiration = pipe(
tap<HttpErrorResponse>(() => (seconds = updateSeconds(seconds))),
mergeMap((error: HttpErrorResponse, index) => {
if ((error.status < HttpStatusCode.InternalServerError && error.status !== 0) || index === maxRetries) {
return throwError(() => error);
}
console.error('An error occurred: ', error);
console.error(`Retrying in ${seconds} seconds...`);
return timer(seconds * 1000);
}),
);
return retry({ delay: (errors: Observable<HttpErrorResponse>) => errors.pipe(timerExpiration) });
function delay(error: HttpErrorResponse) {
seconds = updateSeconds(seconds);
if (error.status < HttpStatusCode.InternalServerError && error.status !== 0) {
return throwError(() => error);
}
console.error('An error occurred: ', error);
console.error(`Retrying in ${seconds} seconds...`);
return timer(seconds * 1000);
}
return retry({ count: maxRetries, delay });
}
@Injectable()