AJAX response: sugestions for JSON format?

Question

Say I submit a form via Ajax and need a response from the server:

• Pass/fail indicator
• On fail, a list of validation errors with associated field ids/names, etc

Is there a standard or best practice for the JSON format for such a structure? If so, I'd like to try to stick to it instead of coming up with my own convention.

Answer 1

{
    "result": "false", 
    "fields":
        [
             {"id": "element1", "name": "element1"},
             {"id": "element2", "name": "element2"},
             {"id": "element3", "name": "element3"}
        ]
}

Answer 2

Hmm. I don't know about a standard, but you might want to just do something like

{
    "result": "false", 
    "hasErrors": true, // redundant, but saves you the checking of the errors array
    "errors":
        [
             {"errorCode": "1234", "errorText": "malformed address"},
             {"errorCode": "5678", "errorText": "no username"}
        ]
}