HowTo: Update Asset Custom Fields via REST API

[Salzi]

Since this has cost me a lot of nerves over the last few days and unfortunately the documentation is silent about the required values, here is a short HowTo

To update an issue and fields of an issue, use the following REST API endpoint:

https://developer.atlassian.com/cloud/jira/platform/rest/v3/api-group-issues/#api-rest-api-3-issue-issueidorkey-put 

Unfortunately, the documentation says nothing about the format in which elements in an Asset Custom Field should be passed.

This is what the JSON body must look like to fill an asset field. Alternatively, you can of course also use the other keywords from the documentation (“add”, “remove”, etc.):

"update": {
    "customfield_XXXXX": [
       {
         "set": [
              {
                 "workspaceId": "workspaceId ot the Object",
                  "id": "GlobalId ot the Object (workspaceId:objectId)",
                  "objectId": "Id of the Object"
              }
          ]
       }
   ]
}

The Global ID consists of the WorkspaceId and the objectId.

 Here is an example of what such a body (with values) could look like:

"update": {
    "customfield_10217": [
       {
         "set": [
              {
                 "workspaceId": "ecaa45c7-4578-420f-a2e0-cf7b0da4b5ad",
                 "id": "ecaa45c7-4578-420f-a2e0-cf7b0da4b5ad:1672",
                 "objectId": "1672"
              }
           ]
        }
    ]
}

I'm happy if the information helps a few more people 🙂

[Anmol Agrawal]

@Salzi This is great!!!! Thanks a lot. I will test this out and if everything is fine, we will add it our documentation and sample apps. We really appreciate this.