Can i take mandatory fields through restAPI request?

Diana_9e3ty5

I would like to get the mandatory fields of a Jira Project through a restAPI request. 
Is that possible?

I can not find this in the documentation.

Thomas Deiler_db00h3

Dear @Diana ,

yes, you can.

First get the IDs of all issue types of one project:

GET /rest/api/2/issue/createmeta/{projectIdOrKey}/issuetypes

Then get all meta info of one issue type:

GET /rest/issue/createmeta/{projectIdOrKey}/issuetypes/{issueTypeId}

The response contains an entity "required". It's true for mandatory fields.

Example

...
{
  "required":true,
  "schema":{
    "type":"user",
    "system":"reporter"
  },
  "name":"Reporter",
  "fieldId":"reporter",
  "autoCompleteUrl":"http://myjira/rest/api/latest/user/search?username=",
  "hasDefaultValue":false,
  "operations":["set"]
}
...

So long

Thomas