I develop a angular 5 and Ionic 3 app.I use following tuitorial.
But,I got following error
error is : Property 'map' does not exist on type 'void'.
import { HttpClient } from '@angular/common/http';
import { Injectable } from '@angular/core';
import {Http ,Response } from '@angular/http';
import 'rxjs/add/operator/do';
import 'rxjs/add/operator/map';
import 'rxjs/add/operator/catch';
/*
Generated class for the RemoteServiceProvider provider.
See https://angular.io/guide/dependency-injection for more info on providers
and Angular DI.
*/
@Injectable()
export class RemoteService {
getApiUrl : string = "https://jsonplaceholder.typicode.com/posts";
constructor(public http: HttpClient) {
console.log('Hello RemoteServiceProvider Provider');
}
getPosts() {
return this.http.get(this.getApiUrl)
.do((res : Response ) => console.log(res.json())
.map((res : Response ) => res.json()) // <-- error shows here
.catch(error => console.log(error)));
}
}
You are missing a )
.do((res : Response ) => console.log(res.json()))
Finally, to read the full response from httpClient it has to be observed explicitly:
Check again that you imported HttpClient module from angular and not Selenium. Do this.
import { HttpClient } from '@angular/common/http';
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