When using SA JSON + Bearer token, Vertex AI requires a project-scoped URL.
The old code used the global publishers endpoint which only works with a raw API key,
causing RESOURCE_PROJECT_INVALID errors.
Changes in open-sse/executors/vertex.js buildUrl():
- SA JSON path: projects/{projectId}/locations/{location}/publishers/google/models/{model}:{action}
- Appends ?alt=sse for streaming on SA JSON path
- Location defaults to us-central1, overridable via providerSpecificData.location
- Raw API key path unchanged (global publishers + ?key= param)
Co-authored-by: anuragg-saxenaa <anuragg.saxenaa@gmail.com>
Made-with: Cursor
Co-authored-by: Quan <quanle96@outlook.com>
PR: https://github.com/decolua/9router/pull/298
Thanks to @kwanLeeFrmVi for the original implementation. Here is a summary
of changes made during review integration:
- Replaced google-auth-library with jose (already a project dependency)
for SA JSON -> OAuth2 Bearer token minting (RS256 JWT assertion flow)
- Moved auth logic (parseSaJson, refreshVertexToken, token cache) from
executor into open-sse/services/tokenRefresh.js to match project pattern
- Fixed executor to use proxyAwareFetch instead of raw fetch (proxy support)
- Simplified buildUrl: use global aiplatform.googleapis.com endpoint for
both vertex (Gemini) and vertex-partner; removed region/modelFamily fields
- Added auto-detection of GCP project_id from raw API key via probe request
(vertex-partner only, cached per key)
- Added vertex/vertex-partner cases to /api/providers/validate/route.js
- Updated model lists based on live testing:
- vertex: gemini-3.1-pro-preview, gemini-3.1-flash-lite-preview,
gemini-3-flash-preview, gemini-2.5-flash (removed gemini-2.5-pro: 404)
- vertex-partner: deepseek-v3.2, qwen3-next-80b (instruct+thinking),
glm-5 (removed Mistral/Llama: not enabled in test project)
- gemini provider: added gemini-3.1-pro-preview, gemini-3.1-flash-lite-preview
- Removed bun.lock (project uses npm/package-lock.json)
- Removed region and modelFamily UI fields (global endpoint, auto-detect)
- Kiro token auto-refresh on AccessDeniedException (from commit 2)
Made-with: Cursor
