How to call API to build reports

[Ideal Lebensversicherung a_G_ Lizenzmanagement]

Hi,

I want to create a simple website, where issues are shown according to the selected project. E.g. choosing project x, will show all x issues in a table.

Therefore I want to know what is best practice and how to call the API. 

[Nic Brough -Adaptavist-]

Start at https://developer.atlassian.com/server/jira/platform/rest-apis/