SuperTokens is an open source authentication solution offering features like: Different types of login: Email / password, Passwordless (OTP or Magic link based).

SuperTokens.com

hi.. how to pass a header in Thirdparty.signinup({})..

tried  options: {
      requestInit: {
        headers: {
          "x-referral-code": localStorage.getItem("referral"),
        },
      },
    },

but this doesnt work..

and also this

ThirdParty.init({
      preAPIHook: async (request) => {
        request.requestInit.headers["x-referral-code"] =
          localStorage.getItem("referral");
      },
    }),

unknown

this is the backend code for signinup.. im using starlette

Make sure to return the modified request init from the `preAPIHook`

Something like this would work

```
ThirdParty.init({
      preAPIHook: async (request) => {
        request.requestInit.headers["x-referral-code"] =
          localStorage.getItem("referral");
        return request;
      },
    }),
```