REST API for JIRA

We'd like to create a REST API for JIRA.

The main aim is to make it simpler for administrators and developers to retrieve issue and project information from JIRA, and update issue and project information on JIRA.

Please add comments to this issue, letting us know the functionality you would find useful in a JIRA REST API.

Background information:

• Introduction to REST APIs: If you would like to know more about REST in general, try the RESTwiki's guide to REST In Plain English:
  http://rest.blueoxen.net/cgi-bin/wiki.pl?RestInPlainEnglish
• Developing your own REST APIs for JIRA: Developers can add their own REST APIs to JIRA by creating a JIRA plugin that includes the REST plugin module:
  http://confluence.atlassian.com/display/JIRA/REST+Plugin+Module+Type
• Understanding the principles behind Atlassian REST API design: You may be interested in the guidelines followed by the Atlassian developers who are designing REST APIs for Atlassian applications:
  http://confluence.atlassian.com/display/DEVNET/Guidelines+for+Atlassian+REST+API+Design