diligent-react-native/service/tokenService/index.js

import store from '../../store/store';
import { refreshTokens } from './tokenApiClient'
import { validateAccessToken } from './validator'

let lock;

export async function getAccessToken() {
  if (lock) {
    await lock;
  }
  else {
    lock = new Promise((resolve, reject) => {

    })
  }
  if (!validateAccessToken()) {
    console.log("REFRESHING TOKEN")
    await refreshTokens();

  }
  return store.getState().user.token
}