Set assignee via the API

[Sandeep Vaidya]

1) I want to set the 'assignee' via the API. I believe I am on the cloud:
[https://company.atlassian.net/rest/api/3/user?accountId=<value>"]

2) I saw a tutorial post on one of your developer sites. It said to do a PUT with:

{
   "fields": {
       "assignee":{"name":"harry"}
   }
}

( curl -D- -u fred:fred -X PUT --data {see below} -H "Content-Type: application/json" http://kelpie9:8081/rest/api/2/issue/QA-31 )

3) If I GET on one of my issues, I don't see a 'name' field. This is what I have:
"assignee": {
"self": "https://propylon-limited.atlassian.net/rest/api/3/user?accountId=6xxxx1",
"accountId": "6....1",
"emailAddress": "sxxx.com",
"avatarUrls": {
"",
"",
"",
""
},
"displayName": "Sandeep Vaidya",
"active": true,
"timeZone": "Europe/Dublin",
"accountType": "atlassian"
},

4) I tried the put with accountId, displayName, I got this error:

{

    "errorMessages": [],

    "errors": {

        "assignee": "Field 'assignee' cannot be set. It is not on the appropriate screen or unknown."

    }

}

[Vikrant Yadav · Accepted solution]

Hi @Sandeep Vaidya As per the error message it seems that Assignee field is not available on Edit screen or not editable. Are you able to set assignee manually from view screen? 
If you are able to edit assignee from view screen then kindly check this link, it has complete steps for setting assignee via REST API  :- 

https://www.ravisagar.in/videos/jira-rest-api-assignunassign-issue

Thanks

V.Y

[Sandeep Vaidya]

Thanks, Vikram. That worked!!

[Vikrant Yadav]

Great glad to hear it works for you 🥳🥳