How to look for the specific index of an array once i enter the mortgage id number in twilio function?

Question

This is my code in twilio functions,

exports.handler = function (context, event, callback) {
 const got = require('got');
 
    const mortgageInfo = event.mortgageInfo;
     const mortgage_number = event.mortgage_number;

 
 
 
 got('https://cyan-sparrow-7490.twil.io/assets/data6.json').then (response =>{
     
     
     const mort = JSON.parse(response.body);
     
     let mortgageData = mort;
     
     
     //Begin filter code
    let val = mortgageInfo;
  
     // I think this line here is my problem
  
     let index = mortgageData.map(function(e) { return e.mortgageid.value; }).indexOf(val);
    
     // I think this line here is my problem


     //End filter code
     
     let mortgageSpecificData = mortgageData[index];
     
     
  
    callback(null,mortgageSpecificData);
     
     
 });

===========SAMPLE ASSET ==============

===========SAMPLE ASSET ==============

Answer 1

I think it can be a lot simpler than that. One thing to note is that event.mortgageInfo is going to be a string, but in your data, the mortgageid property is a number. So when you compare, you need to convert first.

Here's a function that I believe will work:

const got = require("got");

exports.handler = function (context, event, callback) {
  const mortgageInfo = parseInt(event.mortgageInfo, 10);

  got("https://cyan-sparrow-7490.twil.io/assets/data6.json").then(
    (response) => {
      const mortgageData = JSON.parse(response.body);

      const mortgageSpecificData = mortgageData.find(
        (mortgage) => mortgage.mortgageid === mortgageInfo
      );

      callback(null, mortgageSpecificData);
    }
  );
};

In this case I first change the mortgageInfo into a number by calling parseInt on the event.mortgageInfo. Then, once you fetch the data and parse it, you can find the object with the matching mortgageid using the array's find method. find takes a function that is called with each member of the array and returns when it evaluates to true. In this case, for each member of the array we check whether the mortgageid matches the mortgageInfo we got earlier.