Assignee to user in issue

[igramnet]

Hello. I have Server Jira v7.11.2. I use API v.2. 

So, I want to change assignee to another user. How can I do that?

1. I haven't possibility to use URL like https://site.ru/rest/api/latest/issue/{ISSUE_KEY}/assignee. I see 405 error.

2. I tried an example

curl -D- -u fred:fred -X PUT --data {see below} -H "Content-Type: application/json" https://site.ru/rest/api/2/issue/{ISSUE_KEY}
{
"fields": {
"assignee":{"name":"harry"}
}
}

but it doesn't work.

[Alexey Matveev]

Hello,

What is the response text returned by your curl call?

[igramnet]

Nothing. The Empty result. 

I tried this url

curl -D- -u username:pass -X PUT  --data {\"fields\": {\"assignee\":{\"name\":\"newuser\"}}} -H "Content-Type: application/json" https://site.ru/rest/api/2/issue/{ISSUE_KEY}

and gave

{"errorMessages":["Unexpected end-of-input within/between OBJECT entries\n at [Source: org.apache.catalina.connector.CoyoteInputStream@6aa8f474; line: 1, column: 21]"]}

[Alexey Matveev]

You use rest api for Jira Server. Are you on Jira Server or Jira Cloud?

[igramnet]

REST API for jira server (jira hosts on my server)