Apigee Saas - serializing a JSON object into a string

[Sarath123]

Hello,

I'm trying to serialize JSON object into a string representation by recursively iterating and appending the key-value pairs in a specific format, where keys and values are concatenated without any separator.

Below are the expected input and output. Any suggestions on how we can achieve this in Apigee?

Input- {"Username":"merchant_username","Password":"merchant_password","NotificationURL":"URL_to_your_notification_service","EndUserID":"12345","MessageID":"your_unique_deposit_id","Attributes":{"Locale":"sv_SE","Currency":"SEK","IP":"123.123.123.123","MobilePhone":"+46709876543","Firstname":"John","Lastname":"Doe","NationalIdentificationNumber":"790131-1234"}}

Output- AttributesCurrencySEKFirstnameJohnIP123.123.123.123LastnameDoeLocalesv_SEMobilePhone+46709876543NationalIdentificationNumber790131-1234EndUserID12345MessageIDyour_unique_deposit_idNotificationURLURL_to_your_notification_servicePasswordmerchant_passwordUsernamemerchant_username

[dknezic]

If there's a specific expected order, you may need to define that order in a structure or use a hard coded template in a policy.

If it's alphabetical or random, you could write some javascript to go through the json as required and build out your string

[Sarath123]

@dknezic I have tried multiple JavaScripts below but always getting Access to Java class is prohibited. Is it something wrong with the code? could you please help checking..

JS-1

var obj = context.getVariable('data');
var output = ""
function walk(obj) {
  for (var key in obj) {
    if (obj.hasOwnProperty(key)) {
      var val = obj[key];
      //console.log(val);
      output += key+val
      walk(val);
    }
  }
}
walk(obj);
console.log(output)

Js-2

var obj = context.getVariable('data');
var output = ""
function iterateKeys(obj) {
  if (obj && typeof obj === 'object') {
    Object.keys(obj).forEach(function(key) {
      //console.log(key);
      //output = output + key+ obj[key]
      iterateKeys(obj[key]); // recursion
    });
  }
}

iterateKeys(your_object)
context.setVariable("output", output)

JS-3

var obj = context.getVariable('data');
var output = ""
function iterateObject(obj) {
  for (var key in obj) {
    try{
      var object = JSON.parse(obj[key]);
      output += key + obj[key]
    }
    catch(e){
      
      iterateObject(obj[key]);
    }
    /*if (obj[key] instanceof Object) {
      iterateObject(obj[key]);
    } else {
      output += key + obj[key]
      //console.log(key, obj[key]);
    }*/
  }
}

JS-4

var obj = context.getVariable('data');
function iterateKeys(obj) {
  if (obj && typeof obj === 'object') {
    Object.keys(obj).forEach(function(key) {
      console.log(key);
      iterateKeys(obj[key]); // recursion
    });
  }
}

iterateKeys(obj)

[dknezic]

what is your data variable? and what's the stacktrace?