观测值返回类型

Question

Im sending my request to API and parse it with map function:

//part of service
post(url: string, params): Observable<Response> {
    let requestUrl: string = this.apiUrl + url;
    return this.http.post(requestUrl, params)
        .map(response => response.json());
}

//part of other service
doLogin(login, haslo): Observable<Response> {
    return this.apiService.post('auth/login/', {login: login, haslo: haslo});
}

As a result I get boolean value and use it in subscribe function:

this.authService.doLogin(this.model.login, this.model.haslo)
    .subscribe(result => {
        //result is boolean - not Response
        this.authService.loggedIn = result;
        this.result = result
    });

Problem is that in doLogin's subscriber TypeScript says that result is Response instead of boolean - how to fix it?

Answer 1

That's cause of your function prototypes:

post(url: string, params): Observable< Response >

doLogin(login, haslo): Observable< Response >

They should be:

Observable< boolean >

Do it like this:

//part of service
post(url: string, params): Observable<any> {
    let requestUrl: string = this.apiUrl + url;
    return this.http.post(requestUrl, params)
        .map(response => response.json());
}

//part of other service
doLogin(login, haslo): Observable<boolean> {
    return this.apiService.post('auth/login/', {login: login, haslo: haslo})
       .map(result => result == true /* or any check here and return an BOOLEAN !!*/);
}