Nested promises in node.js

In node.js promises give you return statements and error throwing, which you lose with continuation passing style.
Example:
var createJob =  function(jobData){
  if(!jobData){
    console.log('Job data should not be empty!');
  }else{
let jobData = [];
let location = "San Francisco, CA California, US";
let locationArr = location.split(',');
let stateName = locationArr[1].trim();
let country = locationArr[2].trim();
getCountryID(country).then(function(countryID){
  jobData['countryID'] = (countryID>0 ? countryID : null);
  getStateID(stateName,countryID).then( function (stateID){
jobData['stateID'] = (stateID>0 ? stateID : null);
return jobData;
  });
},
function(error) {
  console.log(error);
});
  }
}

function getCountryID(countryName){
  var promise = new Promise(function(resolve, reject) {
//You can write here your logic
resolve( 25 ); //countryID
  });
  return promise;   
}

function getStateID(stateName,countryID){
  var promise = new Promise(function(resolve, reject) {
//You can write here your logic
resolve( 25 ); //stateID
  });
  return promise;   
}

Comments

Popular posts from this blog

Creating Protected routes in ReactJS

Redirect http to https in codeigniter