Angular Nx Tutorial - Step 4: Connect to an API
Real-world applications do not live in isolation — they need APIs to talk to. Setup your app to talk to an API.
Open apps/todos/src/app/app.module.ts to import HttpClientModule.
import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AppComponent } from './app.component';
import { HttpClientModule } from '@angular/common/http';
({
declarations: [AppComponent],
imports: [BrowserModule, HttpClientModule],
providers: [],
bootstrap: [AppComponent],
})
export class AppModule {}
Now, use HttpClient in the component to get the data from the api.
import { Component } from '@angular/core';
import { HttpClient } from '@angular/common/http';
interface Todo {
title: string;
}
({
selector: 'myorg-root',
templateUrl: './app.component.html',
styleUrls: ['./app.component.css'],
})
export class AppComponent {
todos: Todo[] = [];
constructor(private http: HttpClient) {
this.fetch();
}
fetch() {
this.http.get<Todo[]>('/api/todos').subscribe((t) => (this.todos = t));
}
addTodo() {
this.http.post('/api/addTodo', {}).subscribe(() => {
this.fetch();
});
}
}
What's Next
- Continue to Step 5: Add Node Application Implementing an API