50 lines
1.5 KiB
Go
50 lines
1.5 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 mcp_test
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import (
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"bytes"
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"context"
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"fmt"
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"log"
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"slices"
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"strings"
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"github.com/modelcontextprotocol/go-sdk/mcp"
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)
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// !+loggingtransport
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func ExampleLoggingTransport() {
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ctx := context.Background()
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t1, t2 := mcp.NewInMemoryTransports()
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server := mcp.NewServer(&mcp.Implementation{Name: "server", Version: "v0.0.1"}, nil)
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serverSession, err := server.Connect(ctx, t1, nil)
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if err != nil {
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log.Fatal(err)
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}
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defer serverSession.Close()
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client := mcp.NewClient(&mcp.Implementation{Name: "client", Version: "v0.0.1"}, nil)
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var b bytes.Buffer
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logTransport := &mcp.LoggingTransport{Transport: t2, Writer: &b}
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clientSession, err := client.Connect(ctx, logTransport, nil)
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if err != nil {
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log.Fatal(err)
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}
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defer clientSession.Close()
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// Sort for stability: reads are concurrent to writes.
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for _, line := range slices.Sorted(strings.SplitSeq(b.String(), "\n")) {
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fmt.Println(line)
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}
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// Output:
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// read: {"jsonrpc":"2.0","id":1,"result":{"capabilities":{"logging":{}},"protocolVersion":"2025-11-25","serverInfo":{"name":"server","version":"v0.0.1"}}}
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// write: {"jsonrpc":"2.0","id":1,"method":"initialize","params":{"clientInfo":{"name":"client","version":"v0.0.1"},"protocolVersion":"2025-11-25","capabilities":{"roots":{"listChanged":true}}}}
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// write: {"jsonrpc":"2.0","method":"notifications/initialized","params":{}}
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}
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// !-loggingtransport
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