6e03217c83Handlers and client/server methods take a single request argument combining the session and params. This slightly simplifies the signature for handlers, since there is no longer an often-ignored session argument. But more importantly, it opens the door to adding more information in requests, such as auth info and HTTP request headers. For #243.
56 lines
1.5 KiB
Go
56 lines
1.5 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 mcp_test
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"log"
|
|
"net/http"
|
|
"net/http/httptest"
|
|
|
|
"github.com/modelcontextprotocol/go-sdk/mcp"
|
|
)
|
|
|
|
type AddParams struct {
|
|
X, Y int
|
|
}
|
|
|
|
func Add(ctx context.Context, req *mcp.ServerRequest[*mcp.CallToolParamsFor[AddParams]]) (*mcp.CallToolResultFor[any], error) {
|
|
return &mcp.CallToolResultFor[any]{
|
|
Content: []mcp.Content{
|
|
&mcp.TextContent{Text: fmt.Sprintf("%d", req.Params.Arguments.X+req.Params.Arguments.Y)},
|
|
},
|
|
}, nil
|
|
}
|
|
|
|
func ExampleSSEHandler() {
|
|
server := mcp.NewServer(&mcp.Implementation{Name: "adder", Version: "v0.0.1"}, nil)
|
|
mcp.AddTool(server, &mcp.Tool{Name: "add", Description: "add two numbers"}, Add)
|
|
|
|
handler := mcp.NewSSEHandler(func(*http.Request) *mcp.Server { return server })
|
|
httpServer := httptest.NewServer(handler)
|
|
defer httpServer.Close()
|
|
|
|
ctx := context.Background()
|
|
transport := &mcp.SSEClientTransport{Endpoint: httpServer.URL}
|
|
client := mcp.NewClient(&mcp.Implementation{Name: "test", Version: "v1.0.0"}, nil)
|
|
cs, err := client.Connect(ctx, transport, nil)
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
defer cs.Close()
|
|
|
|
res, err := cs.CallTool(ctx, &mcp.CallToolParams{
|
|
Name: "add",
|
|
Arguments: map[string]any{"x": 1, "y": 2},
|
|
})
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
fmt.Println(res.Content[0].(*mcp.TextContent).Text)
|
|
|
|
// Output: 3
|
|
}
|