ReactJS How To Set Cookie From Fetch Request to Back End - reactjs

Question

I have a react front end that is talking to a Node Back End. I am able to make requests and such . However, I noticed that I cannot set the cookie that I am getting back. My back end will respond upon logging in, with a message and a cookie. How should I be doing this?
Relevant code:
import React from "react";
import Fetch from 'react-fetch';
export class Loginform extends React.Component{
constructor(){
super();
this.state = {message : ""};
this.state = {cookie : ""};
}
Login(e){
e.preventDefault();
var Email_Address = this.refs.Email.value;
var Password = this.refs.Password.value;
fetch("http://localhost:5000/api/form", {
method: "POST",
headers: {
"Content-Type":"application/json",
"Accept":"application/json"
},credentials: "include",
body: JSON.stringify({
Email_Address: Email_Address,
Password: Password
})
}).then(response=>response.json())
.then(response => this.setState({message: response.Message, cookie :response['x-access-token']}));
}
render(){
return(
<div className="LoginContainer">
<form name="Loginform" method="post" action="http://localhost:5000/api/tavern" onSubmit={this.Login.bind(this)}>
<div className="block">
<label><i className="fa fa-envelope"></i></label>
<input ref="Email" type="email" placeholder="E-Mail" required title="Enter Valid E-Mail Address"/>
<i className="fa fa-check" aria-hidden="true"></i>
</div>
<div className="block">
<label><i className="fa fa-lock"></i></label>
<input ref="Password" type="password" placeholder="Enter Your Password" pattern=".{9,}" required title="9 Characters Minimum"/>
<i className="fa fa-check" aria-hidden="true"></i>
</div>
<div className="returnmessage"> {this.state.message}</div>
<div className="buttons"> <button type="submit" value="Submit">Login</button></div>
</form>
</div>
);
}
}
I had to add this to make the answer below applicable :
npm install react-cookies --save
import cookie from 'react-cookies'
Here is my code after.
fetch("http://localhost:5000/api/tavern", {
method: "POST",
headers: {
"Content-Type":"application/json",
"Accept":"application/json"
},credentials: "include",
body: JSON.stringify({
Email_Address: Email_Address,
Password: Password
})
}).then(response=>response.json())
.then(function (data){
console.log(data);
cookie.save('x-access-token', data['x-access-token']);
this.setState({message: data.Message, cookie :data['x-access-token']})
}.bind(this)
)
}

Answer 1

What you are doing is not setting the cookie. You are just creating a variable in state called cookie.
Install this package.
The correct syntax is
Cookies.set('access_token', response.headers['x-access-token'])
Now it is actually stored in to your browser cookies. You can go ahead and access it back using
Cookies.get('access_token')

Answer 2

For react you can also use react-cookie package. And if the React version >16.8.0 you can use React Hooks.
import { useCookies } from 'react-cookie';
const [cookies, setCookie] = useCookies(['name']); // getting react hooks
cookie2.set('access_token', 'content of cookie');
cookie = cookies.get('access_token');
console.log(cookie)