How can I deserialize a JSON string into an sObject in a VF page? I don't want to use a controller so I'm looking for the right approach to do this on the client side only. Any ideas?

  • JSON.parse is available in modern browsers. Is that sufficient? Why the "into an sObject" in the question? – Keith C Oct 15 '14 at 8:27
  • I want to insert it to the database using sforce.conection.insert() – Dedo Oct 15 '14 at 11:22

If the JSON string has names that exactly match the SObject field names then you can use code like this:

var s = '{"Field1__c" : "Hello", "Field2__c": "World"}';
var o = JSON.parse(s);
var sob = new sforce.SObject('YourSObjectType__c');
for (var key in o) {
    if (o.hasOwnProperty(key)) {
        sob[key] = o[key];
var result = sforce.connection.insert([sob]);

If the names do not match, instead of the loop you will need a series of assignments:

sob.Field1__c = o.JsonName1;
sob.Field2__c = o.JsonName2;
  • thanks, one question: is your iterating over (key in o(, is there any case where o.hasOwnProperty(key) is false? – Dedo Oct 16 '14 at 14:48
  • @Dedo Probably not in this case as I think JSON.parse creates a simple object with no prototype (though to be sure you would need to research or test against all browsers). Personally I'd leave it in. – Keith C Oct 16 '14 at 15:25

You have create a wrapper as per the Json string format and then You can deserialize it .

  • 2
    Please elaborate your answer. It is not helpful in its current form. Please describe what you mean by wrapper and where the deserialization should take place. – Alexander Johannes Oct 15 '14 at 7:09

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