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Topics#IntegrationMarie Cole's Question
Marie Cole asked in #Integration
Feb 13, 2017, 5:38 AM

Json Deserialization failed on token 'null'

I'm running into an issue calling the REST API using PATCH with the following JSON body:

{

    "EmailEmail": "xxxx@xxxx.com"

}

This results in the following error returned by the API. I expect the INVALID_FIELD errorCode because the field doesn't exist, but the message makes no sense considering I can successfully deserialize the content before sending it. What could Salesforce be choking on with such a simple payload?

[

  {

    "message": "Json Deserialization failed on token 'null' and has left off in the middle of parsing a row. Will go to end of row to begin parsing the next row",

    "errorCode": "INVALID_FIELD"

  }

]
1 answer
  1. Marie Cole
    Feb 13, 2017, 4:24 PM
    Turns out I was using a helper that was serializing the body that was also being serialized elsewhere in my app. I discovered that the helper used .NET's ObjectContent<T>, which serializes whatever value it's given. I just removed the call to JsonConvert.SerializeObject and the response returned the message I was expecting.
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