how to store response public api array in database - node.js

Question

I have created API,to get the pincode related area details. When I enter pincode it shows area details of that pincode , if that detail exist in my databse. But sometimes that pincode related details are not available in my database, so i need to call it by public API and also store that passed pincode and area details in my database. In Command prompt i am getting response,of PostOffice array. So the details which I am getting needs to be stored in Database. How can I do that?
I am able to store pincode which I am passing in API , and in other fields such as Name,Description etc. runturns as empty[] in database.
I am using mlab for it
Changed code: i am able to store pincode & i need to store array result,on cammand prompt displaying the body,includes the PostOffice array,in which having Name,Description,Branchtype...etc I need to store all this field.schema contains this fields.
router.get('/pincode/:pincode',function(req, res) {
Pincode.find({pincode : req.params.pincode},function(error,pincode ){
//when pincode not found in db
if(pincode.length == ''){
console.log("gfhg");
function searchAndSave(pincode, callback){
var request = require('request');
res.statusCode = 302;
request('http://postalpincode.in/api/pincode/'+pincode,function (error, res, body) {
if (res.statusCode === 200) {
var pincodeData = new Pincode({
pincode:pincode,
body:body.PostOffice
});
pincodeData.save(function (err,results) {
if (err) {
return callback(err);
}
else {
console.log(body);
return callback(null,pincodeData);
}
});
}else
//no record found
return callback(null,null);
}
});
}
searchAndSave(req.params.pincode,function(errInSearchAndSave,result){
if(errInSearchAndSave){
console.log("error : ", errInSearchAndSave);
}else{
//pincode result return from api and db
res.json(result);
}
})
}else{
//pincode found in db
res.json(pincode);
}
});
});

Answer 1

Your have to check if result found in db or not and create separate callback function for better clarification
//create a seprate function for search and store db
function searchAndSave(pincode, callback){
var request = require('request');
res.statusCode = 302;
request('http://postalpincode.in/api/pincode/'+pincode,function (error, res, body) {
if (res.statusCode === 200) {
var pincodeData = new Pincode({
pincode:pincode,
body:body.PostOffice.Name
});
pincodeData.save(function (err,results) {
if (err) {
return callback(err);
}
else {
console.log(body);
return callback(null,pincodeData);
}
});
}else{
//no recoord found
return callback(null,null);
}
}
router.get('/pincode/:pincode',function(req, res) {
Pincode.find({pincode : req.params.pincode},function(error,pincode ){
//when pincode not found in db
if(!pincode){
searchAndSave(req.params.pincode,function(errInSearchAndSave,result){
if(errInSearchAndSave){
console.log("error : ", errInSearchAndSave);
}else{
//pincode result return from api and db
res.json(result);
}
})
}else{
//pincode found in db
res.json(pincode);
}
});
});