How to download all issue via Rest API ?

[Deleted user]

I have a requirement, where team is seeking an automation to pull all issues from project via API.

[Nic Brough -Adaptavist-]

Tell them to start with a project search - see https://developer.atlassian.com/server/jira/platform/jira-rest-api-examples/#searching-for-issues-examples

[Deleted user]

Yes I tried using this, but  this is not solving the purpose. They want to download all issues under one  project.

[Nic Brough -Adaptavist-]

I don't know how else to put this, but you plainly have not tried it.

When you search, using that example, for "project = x", you get all the issues. 

(If there are more than 1,000, you will need to consider paging, or take a proper look at the real reason why you're doing this)

[Bill Billbrough]

That's exactly the point (and yes, we've all tried it).  I have 100,000 issues and expecting someone to manually export 1,000 at a time is, in a word, "stupid".  And yes, there is a way to do this using the Jira Rest API's, which we're having to deploy to make Jira work.