Set up AI Proxy Advanced with Gemini

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This guide walks you through setting up the AI Proxy Advanced plugin with Gemini.

For all providers, the Kong AI Proxy Advanced plugin attaches to route entities.

Prerequisites

Kong Gateway is installed and running
Create or retrieve an API key on the Google Cloud API Credentials Page to access Google’s AI services

Configure the AI Proxy Advanced plugin

Create a service in Kong Gateway that will represent the Google Gemini API:

curl -i -X POST http://localhost:8001/services \
 --data "name=gemini-service" \
 --data "url=https://generativelanguage.googleapis.com"

Create a route that maps to the service you defined:

curl -i -X POST http://localhost:8001/routes \
 --data "paths[]=/gemini" \
 --data "service.id=$(curl -s http://localhost:8001/services/gemini-service | jq -r '.id')"

Use the Kong Admin API to configure the AI Proxy Advanced plugin to route requests to Google Gemini:

curl -i -X POST http://localhost:8001/services/gemini-service/plugins \
--header "accept: application/json" \
--header "Content-Type: application/json" \
--data '
{
  "name": "ai-proxy-advanced",
  "config": {
 "targets": [
   {
     "route_type": "llm/v1/chat",
     "auth": {
       "param_name": "key",
       "param_value": "<GEMINI_API_TOKEN>",
       "param_location": "query"
     },
     "model": {
       "provider": "gemini",
       "name": "gemini-1.5-flash"
     }
   }
 ]
  }
}
'

Be sure to replace GEMINI_API_TOKEN with your API token.

Test the configuration

Make an llm/v1/chat type request to test your new endpoint:

curl -X POST http://localhost:8000/gemini \
 -H 'Content-Type: application/json' \
 --data-raw '{ "messages": [ { "role": "system", "content": "You are a mathematician" }, { "role": "user", "content": "What is 1+1?"} ] }'

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