Angular HttpClient JSON service minimal example

Using Angular’sHttpClient in a service to fetch a JSON is pretty straightforward. In this example, we’ll fetch a JSON array.

Note that it’s recommended to create your own TypeScript interface for improved static typing, but nevertheless starting with any[] is often a good idea since it allows you to get started quickly.

public loadMyJSONArray(): Observable<any[]> {
  return this.http.get<any[]>(`/api/my-api`);
}

Full service example

import { Injectable } from '@angular/core';
import { HttpClient } from '@angular/common/http';
import { Observable } from 'rxjs';

@Injectable({
  providedIn: 'root'
})
export class MyService {

  constructor(private http: HttpClient) {
  }

  public loadMyJSONArray(): Observable<any[]> {
    return this.http.get<any[]>(`/api/my-api`);
  }

}