Files
new-api-hunter/relay/channel/gemini/relay-gemini-native.go
CaIon 1fededceb3 feat: refactor token estimation logic
- Introduced new OpenAI text models in `common/model.go`.
- Added `IsOpenAITextModel` function to check for OpenAI text models.
- Refactored token estimation methods across various channels to use estimated prompt tokens instead of direct prompt token counts.
- Updated related functions and structures to accommodate the new token estimation approach, enhancing overall token management.
2025-12-02 21:34:39 +08:00

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package gemini
import (
"io"
"net/http"
"github.com/QuantumNous/new-api/common"
"github.com/QuantumNous/new-api/dto"
"github.com/QuantumNous/new-api/logger"
relaycommon "github.com/QuantumNous/new-api/relay/common"
"github.com/QuantumNous/new-api/relay/helper"
"github.com/QuantumNous/new-api/service"
"github.com/QuantumNous/new-api/types"
"github.com/gin-gonic/gin"
)
func GeminiTextGenerationHandler(c *gin.Context, info *relaycommon.RelayInfo, resp *http.Response) (*dto.Usage, *types.NewAPIError) {
defer service.CloseResponseBodyGracefully(resp)
// 读取响应体
responseBody, err := io.ReadAll(resp.Body)
if err != nil {
return nil, types.NewOpenAIError(err, types.ErrorCodeBadResponseBody, http.StatusInternalServerError)
}
if common.DebugEnabled {
println(string(responseBody))
}
// 解析为 Gemini 原生响应格式
var geminiResponse dto.GeminiChatResponse
err = common.Unmarshal(responseBody, &geminiResponse)
if err != nil {
return nil, types.NewOpenAIError(err, types.ErrorCodeBadResponseBody, http.StatusInternalServerError)
}
// 计算使用量(基于 UsageMetadata
usage := dto.Usage{
PromptTokens: geminiResponse.UsageMetadata.PromptTokenCount,
CompletionTokens: geminiResponse.UsageMetadata.CandidatesTokenCount + geminiResponse.UsageMetadata.ThoughtsTokenCount,
TotalTokens: geminiResponse.UsageMetadata.TotalTokenCount,
}
usage.CompletionTokenDetails.ReasoningTokens = geminiResponse.UsageMetadata.ThoughtsTokenCount
for _, detail := range geminiResponse.UsageMetadata.PromptTokensDetails {
if detail.Modality == "AUDIO" {
usage.PromptTokensDetails.AudioTokens = detail.TokenCount
} else if detail.Modality == "TEXT" {
usage.PromptTokensDetails.TextTokens = detail.TokenCount
}
}
service.IOCopyBytesGracefully(c, resp, responseBody)
return &usage, nil
}
func NativeGeminiEmbeddingHandler(c *gin.Context, resp *http.Response, info *relaycommon.RelayInfo) (*dto.Usage, *types.NewAPIError) {
defer service.CloseResponseBodyGracefully(resp)
responseBody, err := io.ReadAll(resp.Body)
if err != nil {
return nil, types.NewOpenAIError(err, types.ErrorCodeBadResponseBody, http.StatusInternalServerError)
}
if common.DebugEnabled {
println(string(responseBody))
}
usage := service.ResponseText2Usage(c, "", info.UpstreamModelName, info.GetEstimatePromptTokens())
if info.IsGeminiBatchEmbedding {
var geminiResponse dto.GeminiBatchEmbeddingResponse
err = common.Unmarshal(responseBody, &geminiResponse)
if err != nil {
return nil, types.NewOpenAIError(err, types.ErrorCodeBadResponseBody, http.StatusInternalServerError)
}
} else {
var geminiResponse dto.GeminiEmbeddingResponse
err = common.Unmarshal(responseBody, &geminiResponse)
if err != nil {
return nil, types.NewOpenAIError(err, types.ErrorCodeBadResponseBody, http.StatusInternalServerError)
}
}
service.IOCopyBytesGracefully(c, resp, responseBody)
return usage, nil
}
func GeminiTextGenerationStreamHandler(c *gin.Context, info *relaycommon.RelayInfo, resp *http.Response) (*dto.Usage, *types.NewAPIError) {
helper.SetEventStreamHeaders(c)
return geminiStreamHandler(c, info, resp, func(data string, geminiResponse *dto.GeminiChatResponse) bool {
// 直接发送 GeminiChatResponse 响应
err := helper.StringData(c, data)
if err != nil {
logger.LogError(c, err.Error())
}
info.SendResponseCount++
return true
})
}