"wrong project_slug or project_id" after 404 response from backstage backend

[JuliusMu]

Hi,
I try to get this plugin up and running. Locally everything just works fine and I can access my own gitlab instance without any issues. But after deployment I get a 404 response from this url:
https://backstage.our.domain/api/gitlab/rest/gitlab.our.domain/projects/mygroup%2Fmyproject?
I already tried the authentication via the gitlab integration token and via oauth. Both have the same result.
The Backstage Gitlab Integration for importing the entities into the catalog works just fine.
Do you have any ideas what could be the issue?

[antoniomuso]

Hi, sorry for the delay answer. Can you post some logs about the body of the 404 response?

[mannro]

same issue here

[JuliusMu]

This is the body of the 404 response:

{"error":"404 Not Found"}

[mannro]

I had an error in the host parameter, http instead of https.
It's working now.

[JuliusMu]

The host parameter is set to: gitlab.our.domain and the apiBaseUrl to https://gitlab.our.domain/api/v4
Did you use a complete Url for the host parameter?