To clone a single issue, send a POST request to https://deep-clone-for-jira.[REGION].connect.codefortynine.com/clone/rest/single/{originalIssueIdOrKey} with the application/json content-type header and the following JSON body:

{
    "projectId": "10000",         // The project ID to clone the issue into (project key won't work). Use -1 for "Same as original".
    "typeName": "Story",          // The issue type name to clone the issue into. Use -1 for "Same as original".
    "parentKey": "TEST-123",      // Required if the issue type is a subtask: Which parent issue it should be attached to.
    "components": false,          // If components should be cloned, default: false.
    "createComponentsInTargetProjects": false, // If components missing in target projects should be created, default: false.
    "versions": false,            // If version fields should be cloned, default: false.
    "createVersionsInTargetProjects": false, // If versions missing in target projects should be created, default: false.
    "attachments": true,          // If attachments should be cloned, default: false.
    "comments": true,             // If comments should be cloned, default: false.
    "commentsWithDate": true,     // If comments are cloned, if they are prefixed with the original date. Default: false,
    "issueLinks": true,           // If issue links should be cloned, default: false.
    "issueLinkMap": {             // For a Bulk Clone, if only issue links between cloned issues should be kept, we need to know the
        "TEST-123": "CLONE-123",  // mapping between the original and the (so far) cloned issues. Issues yet to be cloned should be
        "TEST-124": null,         // mapped to null so we don't clone the issue links to the original issues if issueLinkSkipUnknown
    },                            // is false. Default: empty map.
    "issueLinkSkipUnknown": true, // If issue links to unknown (i.e. not part of issueLinkMap) issues should be skipped, default: false.
    "remoteLinks": true,          // If remote links should be cloned, default: false.
    "sprint": true,               // If the sprint value should be cloned, default: false.
    "cloneSprintToBoardId": 12,   // If set, the sprint value is cloned by creating a new sprint in the board with the given id.
                                  // If not set, the sprint value is cloned by reusing the existing sprint ID.
    "votes": true,                // If votes should be cloned, default: false.
    "watchers": true,             // If watchers should be cloned, default: false.
    "workLog": true,              // If work logs should be cloned, default: false.
    "workLogWithDate": true,      // If work logs are cloned, if they are prefixed with the original date. Default: false.
    "summaryPrefixEnabled": true, // If the issue summary should be prefixed.
    "summaryPrefix": "CLONE - ",  // Required if summary should be prefixed: The prefix for the summary.
    "editableFields": true,       // If the other editable fields should be cloned, default: false.
    "properties": true,           // If the issue properties should be cloned, default: false.
    "cloneIssueLink": true,       // If an issue link between clone and original issue should be added, default: false.
    "cloneIssueLinkType": "10000:inward", // Issue link type id and direction for cloneIssueLink, default: "clones" issue link, outward.
    "status": true,               // If the issue status should be cloned, default: false.
    "epicIssueKey": "TEST-123"    // If the cloned issue should be attached to an epic, the epic's issue key. Per default, it won't be attached to an epic.
}
JSON

Note that requests can take a while, e.g. if the original issue has a lot of comments.

If the request was valid, you will receive the following response:

{
    "result": "SUCCESS",          // One of SUCCESS, WARNING or ERROR.
    "cloneIssueKey": "TEST-123",  // The newly cloned issue, or null if creating the issue was not successful.
    "message": null               // String containing an explanatory message, or null.
}
JSON