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Refactor API handlers to streamline response handling

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- Replaced channel-based handling in `SendMessage` flow with direct synchronous execution.
- Introduced `hasFirstResponse` flag to manage keep-alive signals in streaming handler.
- Simplified error handling and removed redundant code for enhanced readability and maintainability.
This commit is contained in:
Luis Pater
2025-07-05 04:10:00 +08:00
parent 512f2d5247
commit e73f165070
1 changed files with 17 additions and 37 deletions
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54
internal/api/handlers.go
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@@ -244,43 +244,19 @@ func (h *APIHandlers) handleNonStreamingResponse(c *gin.Context, rawJson []byte)
log.Debugf("Request use account: %s, project id: %s", cliClient.GetEmail(), cliClient.GetProjectID())
respChan := make(chan []byte)
errChan := make(chan *client.ErrorMessage)
go func() {
resp, err := cliClient.SendMessage(cliCtx, rawJson, modelName, contents, tools)
if err != nil {
errChan <- err
} else {
respChan <- resp
}
}()
for {
select {
case <-c.Request.Context().Done():
if c.Request.Context().Err().Error() == "context canceled" {
log.Debugf("Client disconnected: %v", c.Request.Context().Err())
cliCancel()
return
}
case respBody := <-respChan:
openAIFormat := translator.ConvertCliToOpenAINonStream(respBody)
if openAIFormat != "" {
_, _ = fmt.Fprintf(c.Writer, "data: %s\n\n", openAIFormat)
flusher.Flush()
}
cliCancel()
return
case err := <-errChan:
c.Status(err.StatusCode)
_, _ = fmt.Fprint(c.Writer, err.Error.Error())
flusher.Flush()
cliCancel()
return
case <-time.After(500 * time.Millisecond):
_, _ = c.Writer.Write([]byte("\n"))
resp, err := cliClient.SendMessage(cliCtx, rawJson, modelName, contents, tools)
if err != nil {
c.Status(err.StatusCode)
_, _ = fmt.Fprint(c.Writer, err.Error.Error())
flusher.Flush()
cliCancel()
} else {
openAIFormat := translator.ConvertCliToOpenAINonStream(resp)
if openAIFormat != "" {
_, _ = fmt.Fprintf(c.Writer, "data: %s\n\n", openAIFormat)
flusher.Flush()
}
cliCancel()
}
}
@@ -345,6 +321,7 @@ func (h *APIHandlers) handleStreamingResponse(c *gin.Context, rawJson []byte) {
log.Debugf("Request use account: %s, project id: %s", cliClient.GetEmail(), cliClient.GetProjectID())
// Send the message and receive response chunks and errors via channels.
respChan, errChan := cliClient.SendMessageStream(cliCtx, rawJson, modelName, contents, tools)
hasFirstResponse := false
for {
select {
// Handle client disconnection.
@@ -364,6 +341,7 @@ func (h *APIHandlers) handleStreamingResponse(c *gin.Context, rawJson []byte) {
return
} else {
// Convert the chunk to OpenAI format and send it to the client.
hasFirstResponse = true
openAIFormat := translator.ConvertCliToOpenAI(chunk)
if openAIFormat != "" {
_, _ = fmt.Fprintf(c.Writer, "data: %s\n\n", openAIFormat)
@@ -381,8 +359,10 @@ func (h *APIHandlers) handleStreamingResponse(c *gin.Context, rawJson []byte) {
}
// Send a keep-alive signal to the client.
case <-time.After(500 * time.Millisecond):
_, _ = c.Writer.Write([]byte(": CLI-PROXY-API PROCESSING\n\n"))
flusher.Flush()
if hasFirstResponse {
_, _ = c.Writer.Write([]byte(": CLI-PROXY-API PROCESSING\n\n"))
flusher.Flush()
}
}
}
}