How can I POST REST API using React JS and Node JS - node.js

Question

I tried many times but am getting the following error
http://localhost:3001/getLocaiton net::ERR_CONNECTION_REFUSED and
createError (createError.js:17) at XMLHttpRequest.handleError
(xhr.js:87.
How can I solve this issue.
axios.post ('http://localhost:3001/getLocaiton' , {
name: keyWord,
})
.then (function (response){
console.log (response);
})
.catch (function (error){
console.log (error)
});
Following is the code for node back-end
const express = require ('express');
const bodyParser = require ('body-parser');
const cors = require ('cors');
const Client = require('node-rest-client').Client;
const client = new Client ();
const http = require('http')
const app = express ();
app.use(cors())
app.use (bodyParser.urlencoded ({extended :false}))
app.use(bodyParser.json());
const server = http.createServer(app)
server.listen(port)
app.post ('/getLocaiton' , (req, res) =>{
const typeWord = req.body.name;
client.get ('https://api.adform.com/v1/help/buyer/advertisers= '+typeWord+"&key=", function (data, response){
console.log (data);
console.log (response);
})
})
app.listen (3001, ()=> {
console.log ("listining to port 3001")
})

Answer 1

I do not know why you are starting two servers instances by listening on two ports, but I commented out first port listening and you must return respond to your /getLocaiton request (by the way there is a typo in path name):
const express = require ('express');
const bodyParser = require ('body-parser');
const cors = require ('cors');
const Client = require('node-rest-client').Client;
const client = new Client ();
const http = require('http')
const app = express ();
app.use(cors())
app.use (bodyParser.urlencoded ({extended :false}))
app.use(bodyParser.json());
// const server = http.createServer(app)
// server.listen(port)
app.post ('/getLocaiton' , (req, res) =>{
const typeWord = req.body.name;
client.get('https://api.adform.com/v1/help/buyer/advertisers='+
typeWord+
"&key=",function (data, response){
console.log (data);
console.log (response);
// you must return your response to your request
res.json({
data: data
})
}
)
})
app.listen (3001, ()=> {
console.log ("listining to port 3001")
})