llm provider supports Anthropic and Anthropic compatibility api

pkg/llm/provider/anthropic/anthropic_messages_api_provider.go

@@ -0,0 +1,53 @@
+package anthropic
+
+import (
+	"net/http"
+
+	"github.com/mayswind/ezbookkeeping/pkg/core"
+	"github.com/mayswind/ezbookkeeping/pkg/llm/provider"
+	"github.com/mayswind/ezbookkeeping/pkg/settings"
+)
+
+// AnthropicOfficialMessagesAPIProvider defines the structure of Anthropic official messages API provider
+type AnthropicOfficialMessagesAPIProvider struct {
+	AnthropicMessagesAPIProvider
+	AnthropicAPIKey    string
+	AnthropicModelID   string
+	AnthropicMaxTokens uint32
+}
+
+const anthropicMessagesUrl = "https://api.anthropic.com/v1/messages"
+const anthropicAPIVersion = "2023-06-01"
+
+// BuildMessagesHttpRequest returns the messages http request by Anthropic official messages API provider
+func (p *AnthropicOfficialMessagesAPIProvider) BuildMessagesHttpRequest(c core.Context, uid int64) (*http.Request, error) {
+	req, err := http.NewRequest("POST", anthropicMessagesUrl, nil)
+
+	if err != nil {
+		return nil, err
+	}
+
+	req.Header.Set("anthropic-version", anthropicAPIVersion)
+	req.Header.Set("X-Api-Key", p.AnthropicAPIKey)
+
+	return req, nil
+}
+
+// GetModelID returns the model id of Anthropic official messages API provider
+func (p *AnthropicOfficialMessagesAPIProvider) GetModelID() string {
+	return p.AnthropicModelID
+}
+
+// GetMaxTokens returns the max tokens to generate of Anthropic official messages API provider
+func (p *AnthropicOfficialMessagesAPIProvider) GetMaxTokens() uint32 {
+	return p.AnthropicMaxTokens
+}
+
+// NewAnthropicLargeLanguageModelProvider creates a new Anthropic large language model provider instance
+func NewAnthropicLargeLanguageModelProvider(llmConfig *settings.LLMConfig, enableResponseLog bool) provider.LargeLanguageModelProvider {
+	return newCommonAnthropicMessagesAPILargeLanguageModelAdapter(llmConfig, enableResponseLog, &AnthropicOfficialMessagesAPIProvider{
+		AnthropicAPIKey:    llmConfig.AnthropicAPIKey,
+		AnthropicModelID:   llmConfig.AnthropicModelID,
+		AnthropicMaxTokens: llmConfig.AnthropicMaxTokens,
+	})
+}