JIRA Developer Documentation : JIRA REST API Tutorials

Take a look at the overview of JIRA's REST APIs, then follow a tutorial or two:

• JIRA REST API Version 2 Tutorial
• JIRA REST API Example - Basic Authentication
• JIRA REST API Example - Cookie-based Authentication
• JIRA REST API Example - OAuth authentication
• JIRA REST API Example - Create Issue
• JIRA REST API Example - Edit issues
• JIRA REST API Example - Query issues
• JIRA REST API Example - Discovering meta-data for creating issues
• JIRA REST API Example - Add Comment
• Updating an Issue via the JIRA REST APIs
• JIRA REST API examples