Error when attempting to update a fixVersion via Jira Rest API Edited

Hey guys, I am currently having issues when trying to update a fix version using the JIRA rest api and Guzzle.

The error I am getting is a 400 with the following message:

{"errorMessages":["Can not deserialize instance of out of START_ARRAY t (truncated...)


The code I am using looks like this:

$aPostData = array(
'update' => array(
'fixVersions' => array(
'set' => array(
'name' => $strTag

$jsonStuff = \GuzzleHttp\json_encode($aPostData);

$response = $cGuzzel->request('PUT',$strJiraAPI, ['headers' => ['Content-Type' => 'application/json'],
'auth' => [JIRA_USER, JIRA_PASS],



Any help would be greatly appreciated!

1 answer

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Josh Steckler Community Champion Jul 14, 2017

php :)

Can you be more specific about which REST endpoint you are trying to use? Are you updating the fixVersions field of an issue or are you modifying a fixversion on a project?

PUT /rest/api/2/issue/{issueIdOrKey}


PUT /rest/api/2/version/{id}

I'm assuming the first. I think the issue is malformed JSON. You have an extra array in there after 'set' => 

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