Option for Vertex missing in the list of models (frontend)

[charl3sj]

Option for Vertex missing in the list of models (frontend)

[tomlynchRNA]

@anada10 I don't think so, it has to be the credentials (like credentials json). They make it pretty clear in their docs/code comments:

---

But good news, I checked the ChatVertexAI source code in Google repo and found this:

https://github.com/langchain-ai/langchain-google/blob/main/libs/vertexai/langchain_google_vertexai/chat_models.py#L648C9-L648C17

So, turns out there is an undocumented option to pass the credentials directly just like other models 😄

We need an update in the webapp and agent-backend to pass credentials, project and location:

cc @charl3sj

[tomlynchRNA]

@anada10 I remember now, this wasn't made available in frontend yet because vertex only takes credentials from an environment variable. We can't support users providing their own credentials: https://python.langchain.com/v0.2/docs/integrations/chat/google_vertex_ai_palm/#credentials

[anada10]

@tomlynchRNA what if we use OAUTH for GCP instead?