easyai-ai-gateway/apps/api/internal/httpapi/streaming.go

46 lines
1.4 KiB
Go

package httpapi
import "net/http"
func writeCompatibleStream(w http.ResponseWriter, kind string, model string, output map[string]any) {
w.Header().Set("Content-Type", "text/event-stream")
w.Header().Set("Cache-Control", "no-cache")
w.Header().Set("Connection", "keep-alive")
content := extractOutputText(output)
if content == "" {
content = "done"
}
if kind == "responses" {
sendSSE(w, "response.output_text.delta", map[string]any{"type": "response.output_text.delta", "delta": content})
sendSSE(w, "response.completed", map[string]any{"type": "response.completed", "response": output})
return
}
sendSSE(w, "message", map[string]any{
"id": output["id"],
"object": "chat.completion.chunk",
"model": model,
"choices": []any{map[string]any{"index": 0, "delta": map[string]any{"content": content}, "finish_reason": nil}},
})
sendSSE(w, "message", map[string]any{
"id": output["id"],
"object": "chat.completion.chunk",
"model": model,
"choices": []any{map[string]any{"index": 0, "delta": map[string]any{}, "finish_reason": "stop"}},
})
}
func extractOutputText(output map[string]any) string {
if text, ok := output["output_text"].(string); ok {
return text
}
choices, _ := output["choices"].([]any)
for _, rawChoice := range choices {
choice, _ := rawChoice.(map[string]any)
message, _ := choice["message"].(map[string]any)
if content, ok := message["content"].(string); ok {
return content
}
}
return ""
}