I have a MERN + Passport.js application that is using fetch to make a call to my express API in order to retrieve data stored in a cookie. I have my React frontend routed to localhost:3000, and my backend routed to localhost:3001. My cookies are not being saved, and thus my session is not persisting within my browser. It is not an issue with the express-sessions or passport middleware, as when I use POSTMAN to execute the necessary calls to my API, the cookie is stored and the session persists. It is only when I attempt to pass this information through/to my front end that things go wrong. I have been stumped for a while and can't seem to find an answer anywhere.
This is the line that I am using to save the cookie:
handleLogin(event) {
event.preventDefault();
fetch("http://localhost:3001/users/login", {
// credentials: 'include',
credentials: 'same-origin',
method: "post",
headers: {
'Accept': 'application/json',
'Content-Type': 'application/json'
},
body: JSON.stringify({
username: this.state.username,
password: this.state.password
})
})
// .then( (response) => response.json())
.then( (response )=> {
if(response.message){
alert(response.message);
}
})
Which correctly calls my API, which logs the current session, user data, and cookie.
Upon refreshing and making another request, I lose the cookie (it was never properly stored in the first place I think), and all session data.
This is the get request that I make whenever I navigate to a new page:
componentDidMount(){
var current_user = "";
fetch("http://localhost:3001/users/", {
// credentials: 'include',
credentials: 'same-origin',
method: "get",
headers: {
'Accept':'application/json',
'Content-Type': 'application/json'
}
})
// .then( (response)=> response.json())
.then( (response)=> {
if(response.user){
current_user = response.user;
this.setState({
user: current_user
}), ()=> console.log(response);
}
})
}
In response, I get an undefined user and no other response, and the cookie is never stored in my browser. But again, if I do this in POSTMAN, strictly doing the POST request followed by that GET request, the proper user data is returned and the cookie is shown in POSTMAN as well. Any idea as to why fetch is not passing the cookie information back to my front end? I have tried both credentials: 'include' and credentials: same-origin.
Thank you!
