OpenAuth_server/FrontendLegacy/shared/request.js

export default function request(endpoint, method, data) {
   var headers = new Headers();
   headers.set("Content-Type", "application/json");
   return fetch(endpoint, {
      method: method,
      body: JSON.stringify(data),
      headers: headers,
      credentials: "include",
   })
      .then(async (e) => {
         if (e.status !== 200)
            throw new Error((await e.text()) || e.statusText);
         return e.json();
      })
      .then((e) => {
         if (e.error)
            return Promise.reject(
               new Error(
                  typeof e.error === "string"
                     ? e.error
                     : JSON.stringify(e.error)
               )
            );
         return e;
      });
}