38 lines
985 B
Go
38 lines
985 B
Go
package service
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import (
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"encoding/json"
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"errors"
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)
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// EnsureChatCompletionStreamUsageRequest 为 Token 计费的流式 Chat Completions
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// 请求开启最终 usage 块；非流式请求保持原样，避免改变普通接口合同。
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func EnsureChatCompletionStreamUsageRequest(data []byte) ([]byte, error) {
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var payload map[string]any
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if err := json.Unmarshal(data, &payload); err != nil {
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return nil, err
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}
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stream, _ := payload["stream"].(bool)
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if !stream {
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return data, nil
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}
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if err := ensureChatCompletionStreamUsage(payload); err != nil {
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return nil, err
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}
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return json.Marshal(payload)
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}
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func ensureChatCompletionStreamUsage(payload map[string]any) error {
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options := map[string]any{}
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if value, exists := payload["stream_options"]; exists {
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var ok bool
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options, ok = value.(map[string]any)
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if !ok {
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return errors.New("stream_options 必须是 JSON 对象")
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}
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}
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options["include_usage"] = true
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payload["stream_options"] = options
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return nil
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}
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