mirror of
https://github.com/google/adk-docs.git
synced 2026-09-14 16:16:59 +08:00
Toni Klopfenstein
88 lines
2.8 KiB
Go
88 lines
2.8 KiB
Go
// Copyright 2025 Google LLC
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package main
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"log"
|
|
"os"
|
|
"os/exec"
|
|
|
|
"github.com/modelcontextprotocol/go-sdk/mcp"
|
|
"google.golang.org/adk/agent/llmagent"
|
|
"google.golang.org/adk/cmd/launcher/adk"
|
|
"google.golang.org/adk/cmd/launcher/full"
|
|
"google.golang.org/adk/model/gemini"
|
|
"google.golang.org/adk/server/restapi/services"
|
|
"google.golang.org/adk/tool"
|
|
"google.golang.org/adk/tool/mcptoolset"
|
|
"google.golang.org/genai"
|
|
)
|
|
|
|
func main() {
|
|
// Retrieve the API key from an environment variable.
|
|
// This is the recommended approach for security.
|
|
googleMapsAPIKey := os.Getenv("GOOGLE_MAPS_API_KEY")
|
|
if googleMapsAPIKey == "" {
|
|
log.Fatal("GOOGLE_MAPS_API_KEY environment variable not set")
|
|
}
|
|
|
|
ctx := context.Background()
|
|
// Get the Gemini API Key from an environment variable
|
|
geminiAPIKey := os.Getenv("GOOGLE_API_KEY")
|
|
if geminiAPIKey == "" {
|
|
log.Fatal("GOOGLE_API_KEY environment variable not set")
|
|
}
|
|
|
|
model, err := gemini.NewModel(ctx, "gemini-2.5-flash", &genai.ClientConfig{APIKey: geminiAPIKey})
|
|
if err != nil {
|
|
log.Fatalf("Failed to create model: %v", err)
|
|
}
|
|
|
|
cmd := exec.Command("npx", "-y", "@modelcontextprotocol/server-google-maps")
|
|
// Pass the API key as an environment variable to the npx process
|
|
// This is how the MCP server for Google Maps expects the key.
|
|
cmd.Env = append(os.Environ(), fmt.Sprintf("GOOGLE_MAPS_API_KEY=%s", googleMapsAPIKey))
|
|
|
|
mcpToolSet, err := mcptoolset.New(mcptoolset.Config{
|
|
Transport: &mcp.CommandTransport{Command: cmd},
|
|
})
|
|
if err != nil {
|
|
log.Fatalf("Failed to create MCP tool set: %v", err)
|
|
}
|
|
|
|
// Create LLMAgent with MCP tool set
|
|
agent, err := llmagent.New(llmagent.Config{
|
|
Name: "maps_assistant_agent",
|
|
Model: model,
|
|
Description: "Help the user with mapping, directions, and finding places using Google Maps tools.",
|
|
Instruction: "Help the user with mapping, directions, and finding places using Google Maps tools.",
|
|
Toolsets: []tool.Toolset{mcpToolSet},
|
|
})
|
|
|
|
if err != nil {
|
|
log.Fatalf("Failed to create agent: %v", err)
|
|
}
|
|
config := &adk.Config{
|
|
AgentLoader: services.NewSingleAgentLoader(agent),
|
|
}
|
|
l := full.NewLauncher()
|
|
err = l.Execute(ctx, config, os.Args[1:])
|
|
if err != nil {
|
|
log.Fatalf("run failed: %v\n\n%s", err, l.CommandLineSyntax())
|
|
}
|
|
}
|