casibase/embedding/openai.go

55 lines
1.6 KiB
Go

// Copyright 2023 The casbin Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package embedding
import (
"context"
"github.com/casbin/casibase/proxy"
"github.com/casbin/casibase/util"
"github.com/sashabaranov/go-openai"
)
type OpenAiEmbeddingProvider struct {
subType string
secretKey string
}
func NewOpenAiEmbeddingProvider(subType string, secretKey string) (*OpenAiEmbeddingProvider, error) {
return &OpenAiEmbeddingProvider{subType: subType, secretKey: secretKey}, nil
}
func getProxyClientFromToken(authToken string) *openai.Client {
config := openai.DefaultConfig(authToken)
config.HTTPClient = proxy.ProxyHttpClient
c := openai.NewClientWithConfig(config)
return c
}
func (p *OpenAiEmbeddingProvider) QueryVector(text string, ctx context.Context) ([]float32, error) {
client := getProxyClientFromToken(p.secretKey)
resp, err := client.CreateEmbeddings(ctx, openai.EmbeddingRequest{
Input: []string{text},
Model: openai.EmbeddingModel(util.ParseInt(p.subType)),
})
if err != nil {
return nil, err
}
return resp.Data[0].Embedding, nil
}