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.
35 lines
919 B
Go
35 lines
919 B
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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// !+
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package main
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import (
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"context"
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"log"
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"github.com/modelcontextprotocol/go-sdk/mcp"
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)
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type HiParams struct {
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Name string `json:"name"`
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}
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func SayHi(ctx context.Context, cc *mcp.ServerSession, params *mcp.CallToolParamsFor[HiParams]) (*mcp.CallToolResultFor[any], error) {
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return &mcp.CallToolResultFor[any]{
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Content: []mcp.Content{&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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// Create a server with a single tool.
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server := mcp.NewServer("greeter", "v1.0.0", nil)
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server.AddTools(mcp.NewServerTool("greet", "say hi", SayHi))
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// Run the server over stdin/stdout, until the client disconnects
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if err := server.Run(context.Background(), mcp.NewStdioTransport()); err != nil {
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log.Fatal(err)
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}
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}
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// !-
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