Hello, i do have created NextAuth with few providers and everything works fine but i do have issues reading the JWT that is passed from custom backend to me after succesfully login.

This is the CustomProvider implementation:

CredentialsProvider({
      name: 'Credentials',
      credentials: {
        email: {
          label: 'Email',
          type: 'email',
          placeholder: 'example@gmail.com',
          value: 'register_email@abv.bg'
        },
        password: {
          label: 'Password',
          type: 'password',
          value: 'register_password_123456'
        }
      },
      async authorize(credentials, req) {
        if (!credentials?.email || !credentials.password) {
          return null;
        }

        const response = await fetch(baseUrl, {
          method: 'POST',
          body: JSON.stringify({
            email: credentials.email,
            password: credentials.password
          }),
          headers: { 'Content-Type': 'application/json' }
        });

        const respData = await response.json();

        if (response.ok && respData.data.accessToken) {
          return respData.data;
        }

        return null;
      }
    })

respData.data.accessToken - contains server JWT

And then i'm trying to create a middleware that will read the token and apply it as a Authorization header

middleware.ts

// Without a defined matcher, this one line applies next-auth

import { NextMiddleware, NextRequest, NextResponse } from 'next/server';

// to the entire project
export { default } from 'next-auth/middleware';

import { getToken } from 'next-auth/jwt';

export const middleware: NextMiddleware = async (req) => {
  const token = await getToken({ req });
  console.log('token', token);
};

export const config = { matcher: ['/extra'] };

but this is what i get from the log of the token:

token {
  iat: 1698234422,
  exp: 1700826422,
  jti: '9af2c7bc-00a8-446d-9d2c-04b14acff1c5'
}