Credentials related functions

credentials.js

import decode from "jwt-decode";
var querystring = require("querystring");
const axios = require("axios");

export default class Credentials {
  getCredentials = () => {
    const token = this.getToken();
    if (!!token && !this.isTokenExpired(token)) {
      return token;
    } else {
      return this.setToken();
    }
  };

// Makes a token call to API and fetches new token and saves in localstorage
  setToken = async () => {
    const body = {
      grant_type: "client_credentials",
      scope: <options>,
      client_id: process.env.REACT_APP_CLIENT_ID,
      client_secret: process.env.REACT_APP_CLIENT_SECRET,
    };
    const config = {
      headers: {
        "Content-Type": "application/x-www-form-urlencoded",
      },
    };
    const response = await axios.post(
      `${process.env.REACT_APP_API_BASE_URL}/auth/oauth/token`, // Whichever endpoint that handles credentials
      querystring.stringify(body),
      config
    );
    localStorage.setItem("auth_token", response.data.access_token);
    return response.data.access_token;
  };

  getToken = () => {
    return localStorage.getItem("auth_token"); // Fetches token from localstorage
  };

//checks for token expiry
  isTokenExpired = token => {
    try {
      const decoded = decode(token);
      console.log("decoded", decoded);
      if (decoded.exp < Date.now() / 1000) {
        // Checking if token is expired.
        return true;
      } else return false;
    } catch (err) {
      return false;
    }
  };
}