Connecting to Google Gemini

[michaelisvy]

hello,
thanks a lot for the great work on Spring AI!
I have no issue to use Spring AI with OpenAI, but didn't manage to connect to Google Gemini.

Using OpenAI, I have this configuration:

spring.ai.openai.api-key=${OPENAI_API_KEY}
spring.ai.openai.chat.options.model=gpt-4o

Using Gemini, I only found this config from the Spring AI documentation:

spring.ai.vertex.ai.gemini.project-id=PROJECT_ID
spring.ai.vertex.ai.gemini.location=LOCATION
spring.ai.vertex.ai.gemini.chat.options.model=vertex-pro-vision
spring.ai.vertex.ai.gemini.chat.options.temperature=0.5

It doesn't tell me where to put the Google api key. What is the parameter for that?

Thanks!

[KotlinFactory]

See #1252