For a general introduction to Jira's REST API and to find out about different Authentication Methods please read through the Official Atlassian Documentation for Jira's REST APIs.
We recommend you use the Atlassian REST API Browser to explore the API. Make sure you uncheck the option "Show only public APIs" and search for "labelit" .
Getting Labels
Note: for performance reasons all results are limited to 1000 labels. Use the offset method to get results higher than 1000.
URL: <rest-base-url>/labelit/1.0/items
HTTP-METHOD: GET
For specific custom field:
Add parameter "customFieldId" to the URL: <rest-base-url>/labelit/1.0/items?customFieldId=10200
For specific project:
Add parameter "projectId" to the URL: <rest-base-url>/labelit/1.0/items?projectId=1000
Combined:
<rest-base-url>/labelit/1.0/items?projectId=1000&customFieldId=10200
Getting Labels with offset
URL: <rest-base-url>/labelit/1.0/items/offset
HTTP-METHOD: GET
The supported parameters are the same like for getting labels without offset. Additionally the offset can be set. For example:
<rest-base-url>/labelit/1.0/items?projectId=1000&customFieldId=10200&offset=100
Creating Labels
URL: <rest-base-url>/labelit/1.0/items
HTTP-METHOD: POST
HTTP-BODY / Request payload: JSON
{ "name":"mylabel1", "customFieldId":"customfield_10200"}
To find your project id in the user interface follow this knowledge base article from Atlassian.
{ "id":22, "name":"mylabel2", "customFieldId":"customfield_10200"}
Deleteting Labels
URL: <rest-base-url>/labelit/1.0/items/{label-id}
HTTP-METHOD: DELETE