d174d6405a
Discuss generated protocol types, and expand on the section on package layout to make it clearer how they fit in to the SDK. Change-Id: I3beaa86c2396e0cee41dcc8eac06d93c54cb96df Reviewed-on: https://go-review.googlesource.com/c/tools/+/671016 Reviewed-by: Jonathan Amsterdam <jba@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
48 lines
1.3 KiB
Go
48 lines
1.3 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 protocol
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import (
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"encoding/json"
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"fmt"
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)
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// Content is the wire format for content.
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//
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// The Type field distinguishes the type of the content.
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// At most one of Text, MIMEType, Data, and Resource is non-zero.
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type Content struct {
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Type string `json:"type"`
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Text string `json:"text,omitempty"`
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MIMEType string `json:"mimeType,omitempty"`
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Data string `json:"data,omitempty"`
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Resource *Resource `json:"resource,omitempty"`
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}
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// Resource is the wire format for embedded resources.
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//
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// The URI field describes the resource location. At most one of Text and Blob
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// is non-zero.
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type Resource struct {
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URI string `json:"uri,"`
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MIMEType string `json:"mimeType,omitempty"`
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Text string `json:"text"`
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Blob *string `json:"blob"` // blob is a pointer to distinguish empty from missing data
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}
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func (c *Content) UnmarshalJSON(data []byte) error {
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type wireContent Content // for naive unmarshaling
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var c2 wireContent
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if err := json.Unmarshal(data, &c2); err != nil {
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return err
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}
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switch c2.Type {
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case "text", "image", "audio", "resource":
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default:
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return fmt.Errorf("unrecognized content type %s", c.Type)
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}
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*c = Content(c2)
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return nil
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}
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