204b59483bAfter some experience with the flattened version of Content, we see that it can easily lead to incorrect usage and is a harder API to read. Therefore, this CL changes back to a design similar to what we had prior to https://go.dev/cl/672415, though opting to promote content unmarshalling to the protocol types that use it, which leads to an overall simpler api.
57 lines
1.4 KiB
Go
57 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"
|
|
"flag"
|
|
"log"
|
|
"net/http"
|
|
|
|
"github.com/modelcontextprotocol/go-sdk/mcp"
|
|
)
|
|
|
|
var httpAddr = flag.String("http", "", "use SSE HTTP at this address")
|
|
|
|
type SayHiParams struct {
|
|
Name string `json:"name"`
|
|
}
|
|
|
|
func SayHi(ctx context.Context, cc *mcp.ServerSession, params *mcp.CallToolParamsFor[SayHiParams]) (*mcp.CallToolResultFor[any], error) {
|
|
return &mcp.CallToolResultFor[any]{
|
|
Content: []mcp.Content{
|
|
&mcp.TextContent{Text: "Hi " + params.Name},
|
|
},
|
|
}, nil
|
|
}
|
|
|
|
func main() {
|
|
flag.Parse()
|
|
|
|
if httpAddr == nil || *httpAddr == "" {
|
|
log.Fatal("http address not set")
|
|
}
|
|
|
|
server1 := mcp.NewServer("greeter1", "v0.0.1", nil)
|
|
server1.AddTools(mcp.NewServerTool("greet1", "say hi", SayHi))
|
|
|
|
server2 := mcp.NewServer("greeter2", "v0.0.1", nil)
|
|
server2.AddTools(mcp.NewServerTool("greet2", "say hello", SayHi))
|
|
|
|
log.Printf("MCP servers serving at %s\n", *httpAddr)
|
|
handler := mcp.NewSSEHandler(func(request *http.Request) *mcp.Server {
|
|
url := request.URL.Path
|
|
log.Printf("Handling request for URL %s\n", url)
|
|
switch url {
|
|
case "/greeter1":
|
|
return server1
|
|
case "/greeter2":
|
|
return server2
|
|
default:
|
|
return nil
|
|
}
|
|
})
|
|
http.ListenAndServe(*httpAddr, handler)
|
|
}
|