在function_call为空时不计费

controller/relay-openai.go

@@ -52,9 +52,11 @@ func openaiStreamHandler(c *gin.Context, resp *http.Response, relayMode int) (*O
 					}
 					for _, choice := range streamResponse.Choices {
 						responseText += choice.Delta.Content
+						if choice.Delta.FunctionCall != nil {
 							responseFunctionCallName += choice.Delta.FunctionCall.Name
 							responseFunctionCallArguments += choice.Delta.FunctionCall.Arguments
 						}
+					}
 				case RelayModeCompletions:
 					var streamResponse CompletionsStreamResponse
 					err := json.Unmarshal([]byte(data), &streamResponse)