Fetch data from local API

Question

I have a simple API with symfony, run on http://127.0.0.1:8000 and a React project who run on http://localhost:3000.

I want to get this :

{"0":{"id":51,"nom":"Ouais","prenom":"ssdds","competences":{}},"1":{"id":52,"nom":"Ouais","prenom":"ssdds","competences":{}},"2":{"id":53,"nom":"Alexis","prenom":"un truc","competences":{}}}

URL = http://127.0.0.1:8000/api/collaborateurs

So, in react i do :

import React, { Component } from "react";
import './App.css';

fetch('/api/collaborateurs')
    .then(response => console.log(response))
    .then(json => console.log(json))

class App extends Component {

    render() {
    return (<div className="App">
        <h1>Salope</h1>
    </div>)
    }
}

export default App;

but

console.log(response)

return :

Response {type: "basic", url: "http://localhost:3000/api/collaborateurs", redirected: false, status: 200, ok: true, …}
body: (...)
bodyUsed: false
headers: Headers {}
ok: true
redirected: false
status: 200
statusText: "OK"
type: "basic"
url: "http://localhost:3000/api/collaborateurs"
__proto__: Response

why url: "http://localhost:3000/api/collaborateurs" i want url: "**http://127.0.0.1:8000**/api/collaborateurs"

if i change fetch('/api/collaborateurs') to fetch('http://127.0.0.1/api/collaborateurs') the console.log not working

Thank you

Answer 1

Create React App - Proxying API Requests in Development -- setupProxy.js

IP http://127.0.0.1:8000 = IP http://localhost:8000

People often serve the front-end React app from the same host and port as their backend implementation.

Such setup is not required. However, if you do have a setup like this, it is convenient to write requests like fetch('/api/todos') without worrying about redirecting them to another host or port during

To tell the development server to proxy any unknown requests to your API server in development, add a proxy field to your package.json, for example:

"proxy": "http://localhost:8000",

You can use this feature in conjunction with the proxy property in package.json, but it is recommended you consolidate all of your logic into src/setupProxy.js.

First, install http-proxy-middleware using npm or Yarn:

$ npm install http-proxy-middleware --save
$ # or
$ yarn add http-proxy-middleware

Next, create src/setupProxy.js and place the following contents in it:

const { createProxyMiddleware } = require('http-proxy-middleware');

module.exports = function(app) {
  app.use(
    '/api',
    createProxyMiddleware({
      target: 'http://localhost:8000',
      changeOrigin: true,
    })
  );
};

How use to FrontEnd React?

fetch('/api/collaborateurs')
    .then(response => console.log(response))
    .then(json => console.log(json))

ALL API DOCS:

https://create-react-app.dev/docs/proxying-api-requests-in-development/

https://medium.com/bb-tutorials-and-thoughts/react-how-to-proxy-to-backend-server-5588a9e0347

https://medium.com/@Pavan_/set-up-proxy-to-work-with-multiple-apis-in-create-react-app-be595a713eb2