promise_broken.js

const axios = require('axios');

// Make a request for a user with a given ID
var server_url = 'http://127.0.0.1:5000'
var url = server_url + '/v1/envs/';
var msg = {'env_id': 'CartPole-v0'};

let axiosConfig = {
    headers: {
        'Content-Type': 'application/json',
        "Access-Control-Allow-Origin": "*",
    }
  };

  uid = axios.post(url, msg, axiosConfig)
  .then(function (response) {
    console.log('uid is ', response.data.instance_id);
    return response.data.instance_id
  })
  .catch(function (error) {
    console.log("error", error);
  });

console.log("uid here is ", uid)