fd3ce0d810
Based on my understanding, the getServer function is used to determine which MCP server should be serving the session. User might want to dynamically determine which MCP server to serve when a new request comes in. In mcp/examples, two MCP servers are created serving at the same port but under different URL "/greeter1", "/greeter2". The MCP client will reach out to different URLs for different MCP servers. As a TODO, if the getServer() returns nil, the program will crash when handing MCP request. Change-Id: I4431266666e9ea28118e827a94eb1359b1fb3a81 Reviewed-on: https://go-review.googlesource.com/c/tools/+/668535 Reviewed-by: Robert Findley <rfindley@google.com> Auto-Submit: Hongxiang Jiang <hxjiang@golang.org> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
46 lines
1.1 KiB
Go
46 lines
1.1 KiB
Go
// Copyright 2025 The Go MCP SDK Authors. All rights reserved.
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// Use of this source code is governed by an MIT-style
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// license that can be found in the LICENSE file.
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package main
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import (
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"context"
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"flag"
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"fmt"
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"net/http"
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"os"
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"github.com/modelcontextprotocol/go-sdk/mcp"
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)
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var httpAddr = flag.String("http", "", "if set, use SSE HTTP at this address, instead of stdin/stdout")
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type SayHiParams struct {
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Name string `json:"name" mcp:"the name to say hi to"`
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}
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func SayHi(ctx context.Context, cc *mcp.ClientConnection, params *SayHiParams) ([]mcp.Content, error) {
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return []mcp.Content{
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mcp.TextContent{Text: "Hi " + params.Name},
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}, nil
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}
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func main() {
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flag.Parse()
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server := mcp.NewServer("greeter", "v0.0.1", nil)
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server.AddTools(mcp.MakeTool("greet", "say hi", SayHi))
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if *httpAddr != "" {
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handler := mcp.NewSSEHandler(func(*http.Request) *mcp.Server {
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return server
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})
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http.ListenAndServe(*httpAddr, handler)
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} else {
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opts := &mcp.ConnectionOptions{Logger: os.Stderr}
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if err := server.Run(context.Background(), mcp.NewStdIOTransport(), opts); err != nil {
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fmt.Fprintf(os.Stderr, "Server failed: %v", err)
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}
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}
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}
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