43 lines
1.4 KiB
TypeScript
43 lines
1.4 KiB
TypeScript
// Core imports
|
|
import { HttpEvent, HttpHandler, HttpInterceptor, HttpRequest } from '@angular/common/http';
|
|
import { Injectable } from '@angular/core';
|
|
|
|
// Third party imports
|
|
import { Observable } from 'rxjs';
|
|
|
|
// Application imports
|
|
import { LoggingService } from '@app/_services/logging.service';
|
|
import { checkOnlineStatus } from '@app/_helpers';
|
|
|
|
/** Intercepts and handles of events from outgoing HTTP request. */
|
|
@Injectable()
|
|
export class ConnectionInterceptor implements HttpInterceptor {
|
|
/**
|
|
* Initialization of the connection interceptor.
|
|
*
|
|
* @param loggingService - A service that provides logging capabilities.
|
|
*/
|
|
constructor(private loggingService: LoggingService) {}
|
|
|
|
/**
|
|
* Intercepts HTTP requests.
|
|
*
|
|
* @param request - An outgoing HTTP request with an optional typed body.
|
|
* @param next - The next HTTP handler or the outgoing request dispatcher.
|
|
* @returns The forwarded request.
|
|
*/
|
|
intercept(request: HttpRequest<unknown>, next: HttpHandler): Observable<HttpEvent<unknown>> {
|
|
checkOnlineStatus().then((online) => {
|
|
if (!online) {
|
|
this.loggingService.sendErrorLevelMessage('No internet connection on device!', this, {
|
|
error: `NetworkError when attempting to fetch resource ${request.url}.`,
|
|
});
|
|
return;
|
|
} else {
|
|
return next.handle(request);
|
|
}
|
|
});
|
|
return next.handle(request);
|
|
}
|
|
}
|