Backend for self-hosted Gitlab still queries gitlab.com

[JbIPS]

Describe the bug
I configured a backend for my hosted version of Gitlab

  name: gitlab
  repo: web/landing
  auth_type: pkce # Required for pkce
  app_id: *******
  api_root: https://gitlab.****/api/v4
  base_url: https://gitlab.*****
  auth_endpoint: oauth/authorize

On login:

• I get rediricted to my hosted app ✔️
• a call is made to GET https://gitlab.*****/api/v4/projects/web%2Flanding ✔️
• then a call to GET https://gitlab.com/api/v4/projects/web%2Flanding ❌

Of course the 3rd call gives a 404 and login workflow stops.

I looked at the sources but couldn't find a static ref to gitlab.com.

To Reproduce

1. Configure a backend for a hosted gitlab
2. Try to login

Expected behavior
No call should be made to gitlab.com

Screenshots

Applicable Versions:

• Decap CMS version: 3.0.0 (https://unpkg.com/decap-cms@^3.0.0/dist/decap-cms.js)
• Git provider:Gitlab
• OS: Fedora 39
• Browser version: Firefox 129.0.4

CMS configuration

collections:
  - name: 'posts'
    label: "Posts de blog"
    folder: "blog/posts"
    create: true
    fields:
      - { label: "Layout", name: "layout", widget: "hidden", default: "post"}
      - { label: "Titre", name: "title", widget: "string"}
      - { label: "Image", name: "image", widget: "image"}
      - { label: "Miniature", name: "thumbnail", widget: "image"}
      - { label: "Categorie", name: "categoriy", widget: "string"}
      - { label: "Résumé", name: "excerpt", widget: "markdown"}
      - { label: "Contenu", name: "body", widget: "markdown"}

locale: fr

media_folder: "assets/posts"
backend:
  name: gitlab
  repo: web/landing
  auth_type: pkce # Required for pkce
  app_id: *******
  api_root: https://gitlab.****/api/v4
  base_url: https://gitlab.*****
  auth_endpoint: oauth/authorize

[yuchi]

Probably the issue happens when calling getDefaultBranchName without passing all backend configuration options.

Indeed if you add branch: master (or whatever you need) to the backend configuration it will work.

[JbIPS]

You're right, it looks like the API roots are hard-wired into decap-cms-lib-util.

And setting the branch in my YAML do the trick, thanks a lot! 🥳

Should I create a PR to pass an optional api_root to getDefaultBranch and apiRequest ? If present, this line will use it as-is instead.

[martinjagodic]

@JbIPS a PR would be helpful, thanks!