HttpInterceptor重构错误消息

在拦截器中,HTTP错误将通过句柄(请求)捕获。捕获(…)

您可以做的是:

@Injectable()
export class AuthInterceptor implements HttpInterceptor {

    constructor(public auth: AuthProvider, public app: App, private global: GlobalVariablesProvider) {}

    intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {

        return next.handle(request)
            .do((event: HttpEvent<any>) => {
                if (event instanceof HttpResponse) {
                    // do what you want here if your have to
                }
            })
            .catch((err: any) => {
                if (err && err.error) {
                    err.error = err.error.replace(/\[|]/, '');
                }
                return Observable.throw(err);
            });
    }
}