Array of latitude, and longitude mapping

Question

In my project, I have a database containing a list of latitudes and longitudes, corresponding to several addresses, and I want to take them from this database and plot (with routes) them all in Google Maps using Angular 2. However, I am stuck in this problem. I got no output. My code looks like this.

The service component looks like this.

import { Injectable } from '@angular/core';
import {Http, Response, Headers, RequestOptions} from "@angular/http";
import { Observable } from 'rxjs/Observable';
import 'rxjs/add/operator/map';

@Injectable()
export class HawkerserviceService{

baseUrl: string;
  constructor(private http: Http) {


   }
   fetchNews(): Observable<any> {

        return this.http.get('assets/data/locations.json')
                            .map(response => response.json());
   }


    }  

And I have called it in home component and looks like this

import { Component, OnInit } from '@angular/core';
import {Observable} from 'rxjs/Rx';

import {HawkerserviceService } from '../hawkerservice.service';


@Component({
  selector: 'app-home',
  templateUrl: './home.component.html',
  styleUrls: ['./home.component.css']
})
export class HomeComponent implements OnInit {
  public latitude: number;
  public longitude: number;
    public places: any[];

  constructor( private hawkerservice: HawkerserviceService) { }

  ngOnInit() {

    this.hawkerservice.fetchNews()
    .subscribe(
    data=> {this.places= data.locations},
    Error=> console.log('this.places')
    );

  }

}

My HTML component is

 <li *ngFor="let location of places>

 <sebm-google-map [latitude]={{location.latitude}}
[longitude]={{location.longitude}}>
  <sebm-google-map-marker  [latitude]={{location.latitude}}
[longitude]={{location.longitude}}></sebm-google-map-marker>
</sebm-google-map> 


</li>

But I am not getting any output.

My JSON data looks like this

{
    "locations": [

        {
            "title": "Sangam Chowk",
            "latitude": 27.692612,
            "longitude": 85.342982
        },
        {
            "title": "Kharikobot",
            "latitude": 27.690227,
            "longitude": 85.342671
        },
        {
            "title": "Ace Instute Of management",
            "latitude": 27.690693,
            "longitude": 85.339581
        }
 ]
}

What is the best way to do this?

Answer 1

Be sure of the path. Try changing the path string with something like './assets/data/locations.json' (note the ./)