Close an issue using the v3 API

[Cyberlogic Integration User]

Im using the following body to close a ticket via REST API v3
Found here : https://community.atlassian.com/t5/Jira-questions/Close-Jira-Issue-via-REST-API/qaq-p/1845399

This is my POST URL
https://*****.atlassian.net/rest/api/3/issue/CIT-3/transitions?expand=transitions.fields

{

        "update": {

            "comment": [

                {

                    "add": {

                        "body": "Resolved via automated process."

                    }

                }

            ]

        },

        "transition": {

            "id": "761"

        },

        "fields": {

            "resolution": {

                "name": "Done"

            }

        }

    }

Im getting an error 

        "comment": "Operation value must be an Atlassian Document (see the Atlassian Document Format)"

What am I missing? 

[Tansu Akdeniz]

Hi @Cyberlogic Integration User 

Welcome to the community.

Can you please take a look at Jira Cloud Rest Api doc? (look at comment in a request)

[Cyberlogic Integration User]

It does not specifically show me how to close issues.
I would like to just get the json to get this right. 

[Tansu Akdeniz]

What about using the following for comment in a body:

"comment": [
{
"add": {
"body": {
"type": "doc",
"version": 1,
"content": [
{
"type": "paragraph",
"content": [
{
"text": "Resolved via automation.",
"type": "text"
}]}]}}}]

[Cyberlogic Integration User]

Using the JSON above, i get this error.
{

    "errorMessages": [

        "Invalid request. Could not parse request body."

    ]

}

How would i close the ticket? So basically mark it as Done / Completed.