@Tipene Hughes

I used this code, but I still does not solve my issue.

I am using end user to login in zendesk, using email/token: token to post an API, I still get the error message:"error: {title: "Forbidden", message: "Invalid authenticity token"}".

Here is my code snippet:

Can you help check whether there is something wrong?

fetch("/api/v2/users/me")
        .then((data) => {
            return res = data.json();
        })
        .then((res) => {
            const authToken = res.user.authenticity_token;
            console.log(authToken);
            let myHeaders = new Headers();
            myHeaders.append(
                    "Authorization",
                    "Basic xxxxxxxxxxxxxxxxxxxx"
            );
            myHeaders.append("Content-Type", "application/json");
            myHeaders.append("X-CSRF-Token", authToken);
            const raw = JSON.stringify({
               "organization": {
                        "name": "ttt"
               }
            });
            const requestOptions = {
                method: "POST",
                headers: myHeaders,
                body: raw,
                redirect: "follow",
            };
            fetch('/api/v2/organizations', requestOptions)
                    .then(response => response.text())
                    .then(result => console.log(result))
                    .catch(error => console.log("error", error));
        });