Angular 2 http service. Get detailed error information

Question

Executing Angular2 http call to the offline server doesn\'t provide much info in it\'s \"error response\" object I\'m getting in the Observable\'s .catch(error) operator or

Answer 1

You can handle the error messages so they are easier to read. This can definitely be expanded on too:

public Get() {
    return this.http.get(this.URL).map(this.extractData)
        .catch(this.handleError);
}

public extractData(res: Response) {
    let body = res.json();
    return body || {};
}

public handleError(error: any) {
    let errMsg = (error.message) ? error.message :
        error.status ? `${error.status} - ${error.statusText}` : 'Server error';
    console.error(errMsg);
    return Observable.throw(errMsg);
}

Check out this part of the docs on error handling.