Unable to interpret the type(whether is a dropdown, checkbox, multiselect etc) of a field from the create issue metadata response

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2

:wave: @Riyaz_CG and welcome to the Atlassian Developer community!

I don’t have the full answer to your question, but let me share a few more details.

Many devs found this post by Beata useful to retrieve the fields available in the UI: Get all fields and choices for a single project (classic or nextgen) - #3 by BeataSzturemska

Regarding the issue types field specifically, once I’ve retrieved the field id using the /rest/api/3/field endpoint, I’ve requested the /rest/api/3/issuetype one to retrieve the details of all the available issue types. This will not work with every field but it’s a start.
The output will look something like this:

    "self": "https://<yoursite>.atlassian.net/rest/api/3/issuetype/10004",
    "id": "10004",
    "description": "A problem or error.",
    "iconUrl": "https://<yoursite>.atlassian.net/secure/viewavatar?size=medium&avatarId=10303&avatarType=issuetype",
    "name": "Bug",
    "untranslatedName": "Bug",
    "subtask": false,
    "avatarId": 10303,
    "hierarchyLevel": 0
},
{
    "self": "https://<yoursite>.atlassian.net/rest/api/3/issuetype/10002",
    "id": "10002",
    "description": "A small, distinct piece of work.",
    "iconUrl": "https://<yoursite>.atlassian.net/secure/viewavatar?size=medium&avatarId=10318&avatarType=issuetype",
    "name": "Task",
    "untranslatedName": "Task",
    "subtask": false,
    "avatarId": 10318,
    "hierarchyLevel": 0
}

Let us know how you go,
Caterina