Why would the github API return empty list of projects for repo/owner?

When I'm calling the github API through the Octokit npm package or by a simple rest call I'll get an empty array back but a 200 success.

The repo in question is private and the projects in there are private too, but this shouldn't be a problem, shouldn't it? At least I didn't see this restriction mentioned somewhere.

The endpoint I call is:

https://api.github.com/repos/myowner/myrepo/projects

Anyone any ideas?

Thanks, Felix

UPDATE:

What I call is this:

GET https://api.github.com/repos/me-the-owner/myrepo/projects
Accept: application/vnd.github+json
Authorization: Bearer myAllAccessClassicToken
X-GitHub-Api-Version: 2022-11-28

Is there anything else that one should know to investigate the problem?

Solution

I think what I'm struggling with is what JerryK mentions here: Unable to create project in repository or organisation using GitHub REST API

"So after looking around this is what i have found

The API no longer supports working with the new set of Projects. It only supports classic projects
Classic projects can no longer be created in GitHub
Thankfully, Github provides another approach, which is GraphQL
Using graphql you can perform all operations on the Projects, repositories etc Refer to the page https://docs.github.com/en/graphql/reference/mutations for more information "