Add the possibility to get service desk reports using REST API

Problem Definition

It is currently not possible to retrieve reports from a service desk project using the REST APIs for JIRA Service Desk.

Suggested Solution

When clicking on a report (e.g. customers' satisfaction), I can see (in the developers' tools console) that the endpoint "/rest/servicedesk/SERVICEDESK-ID/projects/PROJECT-KEY/report/REPORT-NAME" is called.

E.g.:

https://HOSTNAME/rest/servicedesk/SERVICEDESK-ID/projects/PROJECT-KEY/report/REPORT-NAME?start=1&limit=20&jsonFilter=%7B%22timescaleId%22%3A2%7D&expand=overall&_=1464172480372 

Using the above url in the browser address bar displays the desired results. This endpoint should also be available to be consumed using REST calls.

Workaround

You can use curl and call (change the limit according to your needs):

curl -D- -u USERNAME:PASSWORD -X GET -H "Content-Type: application/json" "https://HOSTNAME/rest/servicedesk/SERVICEDESK-ID/projects/PROJECT-KEY/report/REPORT-NAME?start=1&limit=100" 

NOTE: this is not an optimal solution since this is only used internally and it may change without notice. Refer to Latest JIRA Service Desk REST API Reference for changes to structure