93 lines
1.8 KiB
Go
93 lines
1.8 KiB
Go
// Copyright 2025 eat-pray-ai & OpenWaygate
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// SPDX-License-Identifier: Apache-2.0
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package cmd
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import (
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"fmt"
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"log/slog"
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"net/http"
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"os"
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"time"
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"github.com/modelcontextprotocol/go-sdk/mcp"
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"github.com/spf13/cobra"
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)
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const (
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mcpShort = "Start MCP server"
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mcpLong = "Start MCP server to handle requests from clients"
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modeUsage = "stdio|http"
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portUsage = "Port to listen on for HTTP mode"
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)
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var (
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mode string
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port int
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)
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var Server = mcp.NewServer(
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&mcp.Implementation{Name: "yutu", Version: Version},
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&mcp.ServerOptions{
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PageSize: 99,
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KeepAlive: 13 * time.Second,
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HasResources: true,
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HasTools: true,
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},
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)
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var mcpCmd = &cobra.Command{
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Use: "mcp",
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Short: mcpShort,
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Long: mcpLong,
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Run: func(cmd *cobra.Command, args []string) {
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var err error
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ctx := cmd.Context()
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addr := fmt.Sprintf(":%d", port)
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slog.InfoContext(
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ctx, "starting MCP server",
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"mode", mode,
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"version", Version,
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)
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switch mode {
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case "stdio":
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t := &mcp.LoggingTransport{
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Transport: &mcp.StdioTransport{},
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Writer: os.Stderr,
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}
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err = Server.Run(ctx, t)
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case "http":
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handler := mcp.NewStreamableHTTPHandler(
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func(*http.Request) *mcp.Server {
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return Server
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}, nil,
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)
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slog.InfoContext(
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ctx, "http server configuration",
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"url", fmt.Sprintf("http://localhost:%d/mcp", port),
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)
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err = http.ListenAndServe(addr, handler)
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default:
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slog.ErrorContext(
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ctx, "invalid mode", "mode", mode, "valid_modes", "stdio, http",
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)
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os.Exit(1)
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}
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if err != nil {
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slog.ErrorContext(
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ctx, "starting server failed", "error", err, "mode", mode,
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)
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os.Exit(1)
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}
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},
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}
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func init() {
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RootCmd.AddCommand(mcpCmd)
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mcpCmd.Flags().StringVarP(&mode, "mode", "m", "stdio", modeUsage)
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mcpCmd.Flags().IntVarP(&port, "port", "p", 8216, portUsage)
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}
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