Error while trying to update a custom field using REST API

I am trying to implement a functionality to auto close few tickets which meets a criteria. I am getting the errors mentioned below while making the API call to resolve the issue.

Command I am running:

curl -D- -u admin:admin -X POST --data @oracle_decomm_close_2 -H "Content-Type: application/json" "" 

cat oracle_decomm_close_2
"update": {
"comment":[{"add": {"body": "Automatic closure of Oracle decommission ticket"}}],
"worklog":[{"add": {"timeSpent":"1m"}}],
"customfield_14881":{"value": "NO"}
},"transition": {"id": "5"}


{"errorMessages":["Can not deserialize instance of java.util.ArrayList out of START_OBJECT token\n at [Source: com.plugenta.jiraauditor.filter.RestReadingServletRequest$1@388e8ec2; line: 1, column: 139] (through reference chain:[\"update\"])"]}


New to json. Any help on this is highly appreciated.


1 answer

0 votes


Do you mean that the problem is with customfield_14881? Are you sure about it? Did you try to do the POST without customfield_14881? Did it work? If you are sure that the problem is withcustomfield_14881then what is customfield_14881 custom field type?

Thanks for getting back Alexey.


I am not quite sure where the problem is. I figured that customfield_14881 is required to transition the ticket status to "Resolved". It wouldnt let me close the ticket from the front end, if this field is not set.


I am not sure how to find the type of the custom field. But I did a GET on an existing ticket, and found the below for this particular custom field.

"customfield_14881": {
"id": "17533",
"self": "",
"value": "NO"


Please excuse my mistakes. Any help or guidance is appreciated.

Your JSON should be like this

"update": {
"comment":[{"add": {"body": "Automatic closure of Oracle decommission ticket"}}],
"worklog":[{"add": {"timeSpent":"1m"}}]

"fields": {
    "customfield_14881":{"value": "NO"}
  },"transition": {"id": "5"}

Tried that.


I get HTTP/1.1 500 Internal Server Error


Can I enable additional logging to see specific errors?

Have a look in your atlassian-jira.log. It should work. The problem was that

"customfield_14881":{"value": "NO"} was in the update parameter. But it must be in the fields parameter. Aslo I supposed that your custom field is a single select

Thanks Alexey.


Unfortunately I dont have access to the application logs. I will keep looking to get them.


Adding the custom field change to fields parameter still hasn't worked.

What is the error?

I just get this when i execute the curl command.


{"errorMessages":["Internal server error"],"errors":{}}

The custom field is indeed single select. From the front end i see the possible options are YES/NO

Try to install Jira REST API browser add-on(it is free) and check it there. You can query all REST API functions there. Have a look what will be the error there.

Thanks Alexey. Turns out the id I gave in the transition was incorrect.


It worked after I gave the right one.


Thanks for your help.

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