Angular 2 http call

Question

I'm a bit confused on how to do a http get call. My app.service is like so:

import { Injectable } from '@angular/core';
import { Http, Response } from '@angular/http';
import { Observable } from 'rxjs/Rx';

@Injectable()
export class AppService {
constructor(private http: Http){}
    fetchData(){
    return this.http.get('http://date.jsontest.com/').map(
        (res) = > res.json()
        ).subscribe(
        (data) => console.log(data)
    );
    }
}

This leads to an error of Cannot find name 'res'.

My app.module has the HttpModule.

Having looked through the Angular 2 doc on HTTP requests, they have something like getHeroes (): Observable<Hero[]>. But I am not sure exactly what is contained under the import { Hero } from './hero'; line.

Nico · Accepted Answer · 2016-10-04 22:43:25Z

1

The line

(res) = > res.json()

that should be

(res) => res.json

answered Oct 4, 2016 at 22:43

Nico

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3 Comments

abrahamlinkedin Over a year ago

Wow. I am hopeless. Still, after fixing that, I get another error. This time it says this.http.get(...).map is not a function

abrahamlinkedin Over a year ago

Got it. I then had to import import 'rxjs/Rx';

Nico Over a year ago

I was just about to say you can just import only the map operator from rxjs instead of the whole rxjs library

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