Using Angular 15 with Ruby on Rails

Using Angular 15 with Ruby on Rails

Angular 15 is a front-end JavaScript framework for building web applications, and Ruby on Rails is a back-end web application framework written in Ruby. Together, Angular 15 and Ruby on Rails can be used to build powerful full-stack web applications.

One way to use Angular 15 with Ruby on Rails is to have the Angular 15 application make HTTP requests to the Ruby on Rails application to retrieve and update data. This can be done using Angular's built-in HTTP client.

For example, say we have a Ruby on Rails application that exposes a REST API for creating, reading, updating, and deleting (CRUD) products. We can use Angular's HTTP client to make requests to this API to display a list of products, add a new product, update a product, and delete a product.

First, we need to import the HTTP client module in our Angular 15 component or service:

import { HttpClient } from '@angular/common/http';

Next, we can use the HTTP client to make a GET request to retrieve a list of products:

constructor(private http: HttpClient) { }

ngOnInit() {
  this.http.get<Product[]>('/api/products').subscribe(products => {
    this.products = products;

We can also use the HTTP client to make POST, PUT, and DELETE requests to create, update, and delete products:

addProduct(name: string) {
  const product = { name: name };<Product>('/api/products', product).subscribe(product => {

updateProduct(product: Product) {
  this.http.put<Product>('/api/products/' +, product).subscribe(() => {
    // update the product in the products list

deleteProduct(product: Product) {
  this.http.delete<Product>('/api/products/' + => {
    // remove the product from the products list

On the Ruby on Rails side, we can use the resources method in the routes file to create routes for a RESTful resource and the respond_to block in the controller to handle these requests:

Rails.application.routes.draw do
  resources :products

class ProductsController < ApplicationController
  before_action :set_product, only: [:show, :update, :destroy]

  def index
    @products = Product.all