RnTokenRefresh.js

import Axios from 'axios';
import JwtDecode from 'jwt-decode';

const token = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJlbWFpbCI6IkFiaW1ib2xhMTMwQGdtYWlsLmNvbSIsImlhdCI6MTU3MDIyMzQyNCwiZXhwIjoxNTcwMjIzNjA0fQ.fIMfLpVZOjt9W1Kk6gSippRCA8XvRsOo94jQkC1lSXE";

const axios = Axios.create({
  baseURL: 'https://url.com',
  timeout: 80000,
  headers: {
    'Content-Type': 'application/json',
  },
});

axios.interceptors.request.use(
 async config => {
    config.headers['x-access-token'] = token;
    const currentTime = Date.now() / 1000;
    const  decoded = JwtDecode(token);
    if(currentTime > decoded.exp ){
        const tokenResponse = await refreshToken();
      config.headers['x-access-token'] = tokenResponse.token;
      return config;
    }
    return config;
  },
  error => {
    // Do something with response error
    console.log('API ERR:', error.message);
    return Promise.reject(error);
  },
);


function refreshToken () {
  return new Promise((resolve, reject) => {
    Axios.get('https://url.com/refresh').then((response) => {
      resolve(response.data);
    }).catch((error) => {
      reject(error);
    });
  });
}