go-sdk/examples/server/basic/main.go
2025-08-26 09:13:30 -04:00

58 lines
1.4 KiB
Go

// Copyright 2025 The Go MCP SDK Authors. All rights reserved.
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
package main
import (
"context"
"fmt"
"log"
"github.com/modelcontextprotocol/go-sdk/mcp"
)
type SayHiParams struct {
Name string `json:"name"`
}
func SayHi(ctx context.Context, req *mcp.CallToolRequest, args SayHiParams) (*mcp.CallToolResult, any, error) {
return &mcp.CallToolResult{
Content: []mcp.Content{
&mcp.TextContent{Text: "Hi " + args.Name},
},
}, nil, nil
}
func main() {
ctx := context.Background()
clientTransport, serverTransport := mcp.NewInMemoryTransports()
server := mcp.NewServer(&mcp.Implementation{Name: "greeter", Version: "v0.0.1"}, nil)
mcp.AddTool(server, &mcp.Tool{Name: "greet", Description: "say hi"}, SayHi)
serverSession, err := server.Connect(ctx, serverTransport, nil)
if err != nil {
log.Fatal(err)
}
client := mcp.NewClient(&mcp.Implementation{Name: "client"}, nil)
clientSession, err := client.Connect(ctx, clientTransport, nil)
if err != nil {
log.Fatal(err)
}
res, err := clientSession.CallTool(ctx, &mcp.CallToolParams{
Name: "greet",
Arguments: map[string]any{"name": "user"},
})
if err != nil {
log.Fatal(err)
}
fmt.Println(res.Content[0].(*mcp.TextContent).Text)
clientSession.Close()
serverSession.Wait()
// Output: Hi user
}