Authenticate React fetch with auth0

Hello, I’m new to auth0.

I have a fetch() search form that users search for something and the API returns some fields. What I’m trying to do is, when a user is logged out, I want the API to return only some of the fields, when logged in, all of them.

is this possible with auth0?

1 Like

Hello! Welcome to our community.

This would be limited by your application because we only provide the service to perform the authentication.


Hey there @kosvrouvas!

Can you provide like a real life scenario so we can understand your case in a better way? Thank you!

Hey there.

I’m calling an API with fetch like this:

  apiCall() {
    fetch("", {
      method: "POST",
      headers: {
        Accept: "application/json",
        "Content-Type": "application/json",
      body: JSON.stringify({
           question: this.state.searchValue,
      .then((response) => {
        return response.json();
      .then((jsonData) => {
        this.setState({ posts: jsonData.results.posts });

And I’m getting a result of posts with fields like content, title, author etc in a JSON format.

I need free users to only get some of these fields back. Now, if the user is logged in (so we have a user id/token) the response should contain all fields

In the APIs section of the Auth0 dashboard, click Create API . Provide a name and an identifier for your API. You will use the identifier later when you’re configuring your Javascript Auth0 application instance mcdvoice