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feat: update Gemini API response handling to include block reason and improve error reporting

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CaIon
2025-10-05 19:33:47 +08:00
parent 021892b17d
commit 74f93d41f3
4 changed files with 11 additions and 10 deletions
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7
dto/gemini.go
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@@ -293,12 +293,13 @@ type GeminiChatSafetyRating struct {
type GeminiChatPromptFeedback struct {
SafetyRatings []GeminiChatSafetyRating `json:"safetyRatings"`
BlockReason *string `json:"blockReason,omitempty"`
}
type GeminiChatResponse struct {
Candidates []GeminiChatCandidate `json:"candidates"`
PromptFeedback GeminiChatPromptFeedback `json:"promptFeedback"`
UsageMetadata GeminiUsageMetadata `json:"usageMetadata"`
Candidates []GeminiChatCandidate `json:"candidates"`
PromptFeedback *GeminiChatPromptFeedback `json:"promptFeedback,omitempty"`
UsageMetadata GeminiUsageMetadata `json:"usageMetadata"`
}
type GeminiUsageMetadata struct {

7
relay/channel/gemini/relay-gemini.go
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@@ -1050,7 +1050,12 @@ func GeminiChatHandler(c *gin.Context, info *relaycommon.RelayInfo, resp *http.R
return nil, types.NewOpenAIError(err, types.ErrorCodeBadResponseBody, http.StatusInternalServerError)
}
if len(geminiResponse.Candidates) == 0 {
return nil, types.NewOpenAIError(errors.New("no candidates returned"), types.ErrorCodeBadResponseBody, http.StatusInternalServerError)
//return nil, types.NewOpenAIError(errors.New("no candidates returned"), types.ErrorCodeBadResponseBody, http.StatusInternalServerError)
if geminiResponse.PromptFeedback != nil && geminiResponse.PromptFeedback.BlockReason != nil {
return nil, types.NewOpenAIError(errors.New("request blocked by Gemini API: "+*geminiResponse.PromptFeedback.BlockReason), types.ErrorCodePromptBlocked, http.StatusBadRequest)
} else {
return nil, types.NewOpenAIError(errors.New("empty response from Gemini API"), types.ErrorCodeEmptyResponse, http.StatusInternalServerError)
}
}
fullTextResponse := responseGeminiChat2OpenAI(c, &geminiResponse)
fullTextResponse.Model = info.UpstreamModelName

6
service/convert.go
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@@ -636,9 +636,6 @@ func extractTextFromGeminiParts(parts []dto.GeminiPart) string {
func ResponseOpenAI2Gemini(openAIResponse *dto.OpenAITextResponse, info *relaycommon.RelayInfo) *dto.GeminiChatResponse {
geminiResponse := &dto.GeminiChatResponse{
Candidates: make([]dto.GeminiChatCandidate, 0, len(openAIResponse.Choices)),
PromptFeedback: dto.GeminiChatPromptFeedback{
SafetyRatings: []dto.GeminiChatSafetyRating{},
},
UsageMetadata: dto.GeminiUsageMetadata{
PromptTokenCount: openAIResponse.PromptTokens,
CandidatesTokenCount: openAIResponse.CompletionTokens,
@@ -735,9 +732,6 @@ func StreamResponseOpenAI2Gemini(openAIResponse *dto.ChatCompletionsStreamRespon
geminiResponse := &dto.GeminiChatResponse{
Candidates: make([]dto.GeminiChatCandidate, 0, len(openAIResponse.Choices)),
PromptFeedback: dto.GeminiChatPromptFeedback{
SafetyRatings: []dto.GeminiChatSafetyRating{},
},
UsageMetadata: dto.GeminiUsageMetadata{
PromptTokenCount: info.PromptTokens,
CandidatesTokenCount: 0, // 流式响应中可能没有完整的 usage 信息

1
types/error.go
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@@ -69,6 +69,7 @@ const (
ErrorCodeEmptyResponse ErrorCode = "empty_response"
ErrorCodeAwsInvokeError ErrorCode = "aws_invoke_error"
ErrorCodeModelNotFound ErrorCode = "model_not_found"
ErrorCodePromptBlocked ErrorCode = "prompt_blocked"
// sql error
ErrorCodeQueryDataError ErrorCode = "query_data_error"