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https://github.com/songquanpeng/one-api.git
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008ffe4662
- 添加Anthropic适配器实现 | Add Anthropic adaptor implementation - 支持Anthropic消息格式转换 | Support Anthropic message format conversion - 添加Vertex AI Claude适配器支持 | Add Vertex AI Claude adapter support - 更新Anthropic的中继模式定义 | Update relay mode definitions for Anthropic - 添加Anthropic控制器和路由 | Add Anthropic controller and routing 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: zgdmemail@gmail.com
109 lines
3.2 KiB
Go
109 lines
3.2 KiB
Go
package anthropic
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import (
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"errors"
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"fmt"
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"io"
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"net/http"
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"strings"
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"github.com/gin-gonic/gin"
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"github.com/songquanpeng/one-api/relay/adaptor"
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"github.com/songquanpeng/one-api/relay/meta"
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"github.com/songquanpeng/one-api/relay/model"
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"github.com/songquanpeng/one-api/relay/relaymode"
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)
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type Adaptor struct {
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}
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func (a *Adaptor) Init(meta *meta.Meta) {
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}
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func (a *Adaptor) GetRequestURL(meta *meta.Meta) (string, error) {
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// For native Anthropic API
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if strings.Contains(meta.BaseURL, "api.anthropic.com") {
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return fmt.Sprintf("%s/v1/messages", meta.BaseURL), nil
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}
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// For third-party providers supporting Anthropic protocol (like DeepSeek)
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// They typically expose the endpoint at /anthropic/v1/messages
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baseURL := strings.TrimSuffix(meta.BaseURL, "/")
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return fmt.Sprintf("%s/anthropic/v1/messages", baseURL), nil
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}
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func (a *Adaptor) SetupRequestHeader(c *gin.Context, req *http.Request, meta *meta.Meta) error {
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adaptor.SetupCommonRequestHeader(c, req, meta)
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req.Header.Set("x-api-key", meta.APIKey)
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anthropicVersion := c.Request.Header.Get("anthropic-version")
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if anthropicVersion == "" {
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anthropicVersion = "2023-06-01"
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}
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req.Header.Set("anthropic-version", anthropicVersion)
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req.Header.Set("anthropic-beta", "messages-2023-12-15")
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// https://x.com/alexalbert__/status/1812921642143900036
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// claude-3-5-sonnet can support 8k context
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if strings.HasPrefix(meta.ActualModelName, "claude-3-5-sonnet") {
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req.Header.Set("anthropic-beta", "max-tokens-3-5-sonnet-2024-07-15")
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}
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return nil
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}
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func (a *Adaptor) ConvertRequest(c *gin.Context, relayMode int, request *model.GeneralOpenAIRequest) (any, error) {
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if request == nil {
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return nil, errors.New("request is nil")
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}
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// For native Anthropic protocol requests, return the request as-is (no conversion needed)
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if relayMode == relaymode.AnthropicMessages {
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// The request should already be in Anthropic format, so we pass it through
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// This will be handled by the caller which already has the anthropic request
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return request, nil
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}
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// For OpenAI to Anthropic conversion (existing functionality)
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return ConvertRequest(*request), nil
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}
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func (a *Adaptor) ConvertImageRequest(request *model.ImageRequest) (any, error) {
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if request == nil {
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return nil, errors.New("request is nil")
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}
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return request, nil
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}
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func (a *Adaptor) DoRequest(c *gin.Context, meta *meta.Meta, requestBody io.Reader) (*http.Response, error) {
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return adaptor.DoRequestHelper(a, c, meta, requestBody)
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}
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func (a *Adaptor) DoResponse(c *gin.Context, resp *http.Response, meta *meta.Meta) (usage *model.Usage, err *model.ErrorWithStatusCode) {
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// For native Anthropic protocol requests, handle response directly without conversion
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if meta.Mode == relaymode.AnthropicMessages {
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if meta.IsStream {
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err, usage = DirectStreamHandler(c, resp)
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} else {
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err, usage = DirectHandler(c, resp, meta.PromptTokens, meta.ActualModelName)
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}
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return
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}
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// For OpenAI to Anthropic conversion (existing functionality)
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if meta.IsStream {
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err, usage = StreamHandler(c, resp)
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} else {
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err, usage = Handler(c, resp, meta.PromptTokens, meta.ActualModelName)
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}
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return
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}
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func (a *Adaptor) GetModelList() []string {
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return ModelList
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}
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func (a *Adaptor) GetChannelName() string {
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return "anthropic"
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}
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