JIRA provides a powerful issue search facility with three different search methods: advanced searching, basic searching and quick search. The resources in this section will help you extend the issue search in JIRA. For example, you could add your own JQL function to JIRA.
If you've never used the search in JIRA before, you can learn about searching for issues in the JIRA documentation.
These tutorials lead you through step-by-step development examples related to projects.
Connect cookbook — Search for an issue using JQL (code snippet only)