How to send a request to an api in express js inside a route

I have a post route that carries the phone number of a user. I receive it and want to send an request to an api to send an otp/sms,

app.post('/sendotp', function(req, res){

  //i want to send a api request to 
  http://2factor.in/API/V1/{APIKEY}/SMS/'+no+'/AUTOGEN

  // i would like to have a response here
  //eg: { "Status": "Success", "Details": "ff9ab5b0-452e-11e7-94da-0200cd936042"}

}

Let me know how to handle this

Attempts:

app.get('/apiotp', function(req, res){

var url = 'http://2factor.in/API/V1/0d9cb422-3042/SMS/'+no+'/AUTOGEN';

fetch(url)
.then(function(resp){
    console.log(resp);
    res.send('done');
})
.catch(function(err){
    console.log(error);
});
})

A2:

app.get('/apiotp', function(req, res){

http.request(options, function (res){
     console.log(res);
     // res.send('done');
})

})