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Published: Jun 8, 2023 License: Apache-2.0 Imports: 13 Imported by: 0

README

Go OpenAI

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This library provides unofficial Go clients for OpenAI API. We support:

  • ChatGPT
  • GPT-3, GPT-4
  • DALL·E 2
  • Whisper
Installation:
go get github.com/lch872/go-openai
ChatGPT example usage:
package main

import (
	"context"
	"fmt"
	openai "github.com/lch872/go-openai"
)

func main() {
	client := openai.NewClient("your token")
	resp, err := client.CreateChatCompletion(
		context.Background(),
		openai.ChatCompletionRequest{
			Model: openai.GPT3Dot5Turbo,
			Messages: []openai.ChatCompletionMessage{
				{
					Role:    openai.ChatMessageRoleUser,
					Content: "Hello!",
				},
			},
		},
	)

	if err != nil {
		fmt.Printf("ChatCompletion error: %v\n", err)
		return
	}

	fmt.Println(resp.Choices[0].Message.Content)
}

Other examples:
ChatGPT streaming completion
package main

import (
	"context"
	"errors"
	"fmt"
	"io"
	openai "github.com/lch872/go-openai"
)

func main() {
	c := openai.NewClient("your token")
	ctx := context.Background()

	req := openai.ChatCompletionRequest{
		Model:     openai.GPT3Dot5Turbo,
		MaxTokens: 20,
		Messages: []openai.ChatCompletionMessage{
			{
				Role:    openai.ChatMessageRoleUser,
				Content: "Lorem ipsum",
			},
		},
		Stream: true,
	}
	stream, err := c.CreateChatCompletionStream(ctx, req)
	if err != nil {
		fmt.Printf("ChatCompletionStream error: %v\n", err)
		return
	}
	defer stream.Close()

	fmt.Printf("Stream response: ")
	for {
		response, err := stream.Recv()
		if errors.Is(err, io.EOF) {
			fmt.Println("\nStream finished")
			return
		}

		if err != nil {
			fmt.Printf("\nStream error: %v\n", err)
			return
		}

		fmt.Printf(response.Choices[0].Delta.Content)
	}
}
GPT-3 completion
package main

import (
	"context"
	"fmt"
	openai "github.com/lch872/go-openai"
)

func main() {
	c := openai.NewClient("your token")
	ctx := context.Background()

	req := openai.CompletionRequest{
		Model:     openai.GPT3Ada,
		MaxTokens: 5,
		Prompt:    "Lorem ipsum",
	}
	resp, err := c.CreateCompletion(ctx, req)
	if err != nil {
		fmt.Printf("Completion error: %v\n", err)
		return
	}
	fmt.Println(resp.Choices[0].Text)
}
GPT-3 streaming completion
package main

import (
	"errors"
	"context"
	"fmt"
	"io"
	openai "github.com/lch872/go-openai"
)

func main() {
	c := openai.NewClient("your token")
	ctx := context.Background()

	req := openai.CompletionRequest{
		Model:     openai.GPT3Ada,
		MaxTokens: 5,
		Prompt:    "Lorem ipsum",
		Stream:    true,
	}
	stream, err := c.CreateCompletionStream(ctx, req)
	if err != nil {
		fmt.Printf("CompletionStream error: %v\n", err)
		return
	}
	defer stream.Close()

	for {
		response, err := stream.Recv()
		if errors.Is(err, io.EOF) {
			fmt.Println("Stream finished")
			return
		}

		if err != nil {
			fmt.Printf("Stream error: %v\n", err)
			return
		}


		fmt.Printf("Stream response: %v\n", response)
	}
}
Audio Speech-To-Text
package main

import (
	"context"
	"fmt"

	openai "github.com/lch872/go-openai"
)

func main() {
	c := openai.NewClient("your token")
	ctx := context.Background()

	req := openai.AudioRequest{
		Model:    openai.Whisper1,
		FilePath: "recording.mp3",
	}
	resp, err := c.CreateTranscription(ctx, req)
	if err != nil {
		fmt.Printf("Transcription error: %v\n", err)
		return
	}
	fmt.Println(resp.Text)
}
Audio Captions
package main

import (
	"context"
	"fmt"
	"os"

	openai "github.com/lch872/go-openai"
)

func main() {
	c := openai.NewClient(os.Getenv("OPENAI_KEY"))

	req := openai.AudioRequest{
		Model:    openai.Whisper1,
		FilePath: os.Args[1],
		Format:   openai.AudioResponseFormatSRT,
	}
	resp, err := c.CreateTranscription(context.Background(), req)
	if err != nil {
		fmt.Printf("Transcription error: %v\n", err)
		return
	}
	f, err := os.Create(os.Args[1] + ".srt")
	if err != nil {
		fmt.Printf("Could not open file: %v\n", err)
		return
	}
	defer f.Close()
	if _, err := f.WriteString(resp.Text); err != nil {
		fmt.Printf("Error writing to file: %v\n", err)
		return
	}
}
DALL-E 2 image generation
package main

import (
	"bytes"
	"context"
	"encoding/base64"
	"fmt"
	openai "github.com/lch872/go-openai"
	"image/png"
	"os"
)

func main() {
	c := openai.NewClient("your token")
	ctx := context.Background()

	// Sample image by link
	reqUrl := openai.ImageRequest{
		Prompt:         "Parrot on a skateboard performs a trick, cartoon style, natural light, high detail",
		Size:           openai.CreateImageSize256x256,
		ResponseFormat: openai.CreateImageResponseFormatURL,
		N:              1,
	}

	respUrl, err := c.CreateImage(ctx, reqUrl)
	if err != nil {
		fmt.Printf("Image creation error: %v\n", err)
		return
	}
	fmt.Println(respUrl.Data[0].URL)

	// Example image as base64
	reqBase64 := openai.ImageRequest{
		Prompt:         "Portrait of a humanoid parrot in a classic costume, high detail, realistic light, unreal engine",
		Size:           openai.CreateImageSize256x256,
		ResponseFormat: openai.CreateImageResponseFormatB64JSON,
		N:              1,
	}

	respBase64, err := c.CreateImage(ctx, reqBase64)
	if err != nil {
		fmt.Printf("Image creation error: %v\n", err)
		return
	}

	imgBytes, err := base64.StdEncoding.DecodeString(respBase64.Data[0].B64JSON)
	if err != nil {
		fmt.Printf("Base64 decode error: %v\n", err)
		return
	}

	r := bytes.NewReader(imgBytes)
	imgData, err := png.Decode(r)
	if err != nil {
		fmt.Printf("PNG decode error: %v\n", err)
		return
	}

	file, err := os.Create("example.png")
	if err != nil {
		fmt.Printf("File creation error: %v\n", err)
		return
	}
	defer file.Close()

	if err := png.Encode(file, imgData); err != nil {
		fmt.Printf("PNG encode error: %v\n", err)
		return
	}

	fmt.Println("The image was saved as example.png")
}

Configuring proxy
config := openai.DefaultConfig("token")
proxyUrl, err := url.Parse("http://localhost:{port}")
if err != nil {
	panic(err)
}
transport := &http.Transport{
	Proxy: http.ProxyURL(proxyUrl),
}
config.HTTPClient = &http.Client{
	Transport: transport,
}

c := openai.NewClientWithConfig(config)

See also: https://pkg.go.dev/github.com/lch872/go-openai#ClientConfig

ChatGPT support context
package main

import (
	"bufio"
	"context"
	"fmt"
	"os"
	"strings"

	"github.com/lch872/go-openai"
)

func main() {
	client := openai.NewClient("your token")
	messages := make([]openai.ChatCompletionMessage, 0)
	reader := bufio.NewReader(os.Stdin)
	fmt.Println("Conversation")
	fmt.Println("---------------------")

	for {
		fmt.Print("-> ")
		text, _ := reader.ReadString('\n')
		// convert CRLF to LF
		text = strings.Replace(text, "\n", "", -1)
		messages = append(messages, openai.ChatCompletionMessage{
			Role:    openai.ChatMessageRoleUser,
			Content: text,
		})

		resp, err := client.CreateChatCompletion(
			context.Background(),
			openai.ChatCompletionRequest{
				Model:    openai.GPT3Dot5Turbo,
				Messages: messages,
			},
		)

		if err != nil {
			fmt.Printf("ChatCompletion error: %v\n", err)
			continue
		}

		content := resp.Choices[0].Message.Content
		messages = append(messages, openai.ChatCompletionMessage{
			Role:    openai.ChatMessageRoleAssistant,
			Content: content,
		})
		fmt.Println(content)
	}
}
Azure OpenAI ChatGPT
package main

import (
	"context"
	"fmt"

	openai "github.com/lch872/go-openai"
)

func main() {
	config := openai.DefaultAzureConfig("your Azure OpenAI Key", "https://your Azure OpenAI Endpoint")
	// If you use a deployment name different from the model name, you can customize the AzureModelMapperFunc function
	// config.AzureModelMapperFunc = func(model string) string {
	// 	azureModelMapping = map[string]string{
	// 		"gpt-3.5-turbo": "your gpt-3.5-turbo deployment name",
	// 	}
	// 	return azureModelMapping[model]
	// }

	client := openai.NewClientWithConfig(config)
	resp, err := client.CreateChatCompletion(
		context.Background(),
		openai.ChatCompletionRequest{
			Model: openai.GPT3Dot5Turbo,
			Messages: []openai.ChatCompletionMessage{
				{
					Role:    openai.ChatMessageRoleUser,
					Content: "Hello Azure OpenAI!",
				},
			},
		},
	)
	if err != nil {
		fmt.Printf("ChatCompletion error: %v\n", err)
		return
	}

	fmt.Println(resp.Choices[0].Message.Content)
}

Azure OpenAI Embeddings
package main

import (
	"context"
	"fmt"

	openai "github.com/lch872/go-openai"
)

func main() {

	config := openai.DefaultAzureConfig("your Azure OpenAI Key", "https://your Azure OpenAI Endpoint")
	config.APIVersion = "2023-05-15" // optional update to latest API version

	//If you use a deployment name different from the model name, you can customize the AzureModelMapperFunc function
	//config.AzureModelMapperFunc = func(model string) string {
	//    azureModelMapping = map[string]string{
	//        "gpt-3.5-turbo":"your gpt-3.5-turbo deployment name",
	//    }
	//    return azureModelMapping[model]
	//}

	input := "Text to vectorize"

	client := openai.NewClientWithConfig(config)
	resp, err := client.CreateEmbeddings(
		context.Background(),
		openai.EmbeddingRequest{
			Input: []string{input},
			Model: openai.AdaEmbeddingV2,
		})

	if err != nil {
		fmt.Printf("CreateEmbeddings error: %v\n", err)
		return
	}

	vectors := resp.Data[0].Embedding // []float32 with 1536 dimensions

	fmt.Println(vectors[:10], "...", vectors[len(vectors)-10:])
}
Error handling

Open-AI maintains clear documentation on how to handle API errors

example:

e := &openai.APIError{}
if errors.As(err, &e) {
  switch e.HTTPStatusCode {
    case 401:
      // invalid auth or key (do not retry)
    case 429:
      // rate limiting or engine overload (wait and retry) 
    case 500:
      // openai server error (retry)
    default:
      // unhandled
  }
}

See the examples/ folder for more.

Documentation

Overview

Example
client := openai.NewClient(os.Getenv("OPENAI_API_KEY"))
resp, err := client.CreateChatCompletion(
	context.Background(),
	openai.ChatCompletionRequest{
		Model: openai.GPT3Dot5Turbo,
		Messages: []openai.ChatCompletionMessage{
			{
				Role:    openai.ChatMessageRoleUser,
				Content: "Hello!",
			},
		},
	},
)

if err != nil {
	fmt.Printf("ChatCompletion error: %v\n", err)
	return
}

fmt.Println(resp.Choices[0].Message.Content)
Output:

Example (Chatbot)
client := openai.NewClient(os.Getenv("OPENAI_API_KEY"))

req := openai.ChatCompletionRequest{
	Model: openai.GPT3Dot5Turbo,
	Messages: []openai.ChatCompletionMessage{
		{
			Role:    openai.ChatMessageRoleSystem,
			Content: "you are a helpful chatbot",
		},
	},
}
fmt.Println("Conversation")
fmt.Println("---------------------")
fmt.Print("> ")
s := bufio.NewScanner(os.Stdin)
for s.Scan() {
	req.Messages = append(req.Messages, openai.ChatCompletionMessage{
		Role:    openai.ChatMessageRoleUser,
		Content: s.Text(),
	})
	resp, err := client.CreateChatCompletion(context.Background(), req)
	if err != nil {
		fmt.Printf("ChatCompletion error: %v\n", err)
		continue
	}
	fmt.Printf("%s\n\n", resp.Choices[0].Message.Content)
	req.Messages = append(req.Messages, resp.Choices[0].Message)
	fmt.Print("> ")
}
Output:

Index

Examples

Constants

View Source
const (
	ChatMessageRoleSystem    = "system"
	ChatMessageRoleUser      = "user"
	ChatMessageRoleAssistant = "assistant"
)

Chat message role defined by the OpenAI API.

View Source
const (
	GPT432K0314             = "gpt-4-32k-0314"
	GPT432K                 = "gpt-4-32k"
	GPT40314                = "gpt-4-0314"
	GPT4                    = "gpt-4"
	GPT3Dot5Turbo0301       = "gpt-3.5-turbo-0301"
	GPT3Dot5Turbo           = "gpt-3.5-turbo"
	GPT3TextDavinci003      = "text-davinci-003"
	GPT3TextDavinci002      = "text-davinci-002"
	GPT3TextCurie001        = "text-curie-001"
	GPT3TextBabbage001      = "text-babbage-001"
	GPT3TextAda001          = "text-ada-001"
	GPT3TextDavinci001      = "text-davinci-001"
	GPT3DavinciInstructBeta = "davinci-instruct-beta"
	GPT3Davinci             = "davinci"
	GPT3CurieInstructBeta   = "curie-instruct-beta"
	GPT3Curie               = "curie"
	GPT3Ada                 = "ada"
	GPT3Babbage             = "babbage"
)

GPT3 Defines the models provided by OpenAI to use when generating completions from OpenAI. GPT3 Models are designed for text-based tasks. For code-specific tasks, please refer to the Codex series of models.

View Source
const (
	CodexCodeDavinci002 = "code-davinci-002"
	CodexCodeCushman001 = "code-cushman-001"
	CodexCodeDavinci001 = "code-davinci-001"
)

Codex Defines the models provided by OpenAI. These models are designed for code-specific tasks, and use a different tokenizer which optimizes for whitespace.

View Source
const (
	CreateImageSize256x256   = "256x256"
	CreateImageSize512x512   = "512x512"
	CreateImageSize1024x1024 = "1024x1024"
)

Image sizes defined by the OpenAI API.

View Source
const (
	CreateImageResponseFormatURL     = "url"
	CreateImageResponseFormatB64JSON = "b64_json"
)
View Source
const (
	ModerationTextStable = "text-moderation-stable"
	ModerationTextLatest = "text-moderation-latest"
	ModerationText001    = "text-moderation-001"
)

The default is text-moderation-latest which will be automatically upgraded over time. This ensures you are always using our most accurate model. If you use text-moderation-stable, we will provide advanced notice before updating the model. Accuracy of text-moderation-stable may be slightly lower than for text-moderation-latest.

View Source
const AzureAPIKeyHeader = "api-key"
View Source
const (
	Whisper1 = "whisper-1"
)

Whisper Defines the models provided by OpenAI to use when processing audio with OpenAI.

Variables

View Source
var (
	ErrChatCompletionInvalidModel       = errors.New("this model is not supported with this method, please use CreateCompletion client method instead") //nolint:lll
	ErrChatCompletionStreamNotSupported = errors.New("streaming is not supported with this method, please use CreateChatCompletionStream")              //nolint:lll
)
View Source
var (
	ErrCompletionUnsupportedModel              = errors.New("this model is not supported with this method, please use CreateChatCompletion client method instead") //nolint:lll
	ErrCompletionStreamNotSupported            = errors.New("streaming is not supported with this method, please use CreateCompletionStream")                      //nolint:lll
	ErrCompletionRequestPromptTypeNotSupported = errors.New("the type of CompletionRequest.Prompt only supports string and []string")                              //nolint:lll
)
View Source
var (
	ErrTooManyEmptyStreamMessages = errors.New("stream has sent too many empty messages")
)

Functions

This section is empty.

Types

type APIError

type APIError struct {
	Code           any     `json:"code,omitempty"`
	Message        string  `json:"message"`
	Param          *string `json:"param,omitempty"`
	Type           string  `json:"type"`
	HTTPStatusCode int     `json:"-"`
}

APIError provides error information returned by the OpenAI API.

Example

Open-AI maintains clear documentation on how to handle API errors.

see: https://platform.openai.com/docs/guides/error-codes/api-errors

var err error // Assume this is the error you are checking.
e := &openai.APIError{}
if errors.As(err, &e) {
	switch e.HTTPStatusCode {
	case 401:
	// invalid auth or key (do not retry)
	case 429:
	// rate limiting or engine overload (wait and retry)
	case 500:
	// openai server error (retry)
	default:
		// unhandled
	}
}
Output:

func (*APIError) Error

func (e *APIError) Error() string

func (*APIError) UnmarshalJSON

func (e *APIError) UnmarshalJSON(data []byte) (err error)

type APIType

type APIType string
const (
	APITypeOpenAI  APIType = "OPEN_AI"
	APITypeAzure   APIType = "AZURE"
	APITypeAzureAD APIType = "AZURE_AD"
)

type AudioRequest

type AudioRequest struct {
	Model string

	// FilePath is either an existing file in your filesystem or a filename representing the contents of Reader.
	FilePath string

	// Reader is an optional io.Reader when you do not want to use an existing file.
	Reader io.Reader

	Prompt      string // For translation, it should be in English
	Temperature float32
	Language    string // For translation, just do not use it. It seems "en" works, not confirmed...
	Format      AudioResponseFormat
}

AudioRequest represents a request structure for audio API. ResponseFormat is not supported for now. We only return JSON text, which may be sufficient.

func (AudioRequest) HasJSONResponse

func (r AudioRequest) HasJSONResponse() bool

HasJSONResponse returns true if the response format is JSON.

type AudioResponse

type AudioResponse struct {
	Text string `json:"text"`
}

AudioResponse represents a response structure for audio API.

type AudioResponseFormat

type AudioResponseFormat string

Response formats; Whisper uses AudioResponseFormatJSON by default.

const (
	AudioResponseFormatJSON AudioResponseFormat = "json"
	AudioResponseFormatSRT  AudioResponseFormat = "srt"
	AudioResponseFormatVTT  AudioResponseFormat = "vtt"
)

type ChatCompletionChoice

type ChatCompletionChoice struct {
	Index        int                   `json:"index"`
	Message      ChatCompletionMessage `json:"message"`
	FinishReason string                `json:"finish_reason"`
}

type ChatCompletionMessage

type ChatCompletionMessage struct {
	Role    string `json:"role"`
	Content string `json:"content"`

	// This property isn't in the official documentation, but it's in
	// the documentation for the official library for python:
	// - https://github.com/openai/openai-python/blob/main/chatml.md
	// - https://github.com/openai/openai-cookbook/blob/main/examples/How_to_count_tokens_with_tiktoken.ipynb
	Name string `json:"name,omitempty"`
}

type ChatCompletionRequest

type ChatCompletionRequest struct {
	Model            string                  `json:"model"`
	Messages         []ChatCompletionMessage `json:"messages"`
	MaxTokens        int                     `json:"max_tokens,omitempty"`
	Temperature      float32                 `json:"temperature,omitempty"`
	TopP             float32                 `json:"top_p,omitempty"`
	N                int                     `json:"n,omitempty"`
	Stream           bool                    `json:"stream,omitempty"`
	Stop             []string                `json:"stop,omitempty"`
	PresencePenalty  float32                 `json:"presence_penalty,omitempty"`
	FrequencyPenalty float32                 `json:"frequency_penalty,omitempty"`
	LogitBias        map[string]int          `json:"logit_bias,omitempty"`
	User             string                  `json:"user,omitempty"`
}

ChatCompletionRequest represents a request structure for chat completion API.

type ChatCompletionResponse

type ChatCompletionResponse struct {
	ID      string                 `json:"id"`
	Object  string                 `json:"object"`
	Created int64                  `json:"created"`
	Model   string                 `json:"model"`
	Choices []ChatCompletionChoice `json:"choices"`
	Usage   Usage                  `json:"usage"`
}

ChatCompletionResponse represents a response structure for chat completion API.

type ChatCompletionStream

type ChatCompletionStream struct {
	// contains filtered or unexported fields
}

ChatCompletionStream Note: Perhaps it is more elegant to abstract Stream using generics.

func (ChatCompletionStream) Close

func (stream ChatCompletionStream) Close()

func (ChatCompletionStream) Recv

func (stream ChatCompletionStream) Recv() (response T, err error)

type ChatCompletionStreamChoice

type ChatCompletionStreamChoice struct {
	Index        int                             `json:"index"`
	Delta        ChatCompletionStreamChoiceDelta `json:"delta"`
	FinishReason string                          `json:"finish_reason"`
}

type ChatCompletionStreamChoiceDelta

type ChatCompletionStreamChoiceDelta struct {
	Content string `json:"content,omitempty"`
	Role    string `json:"role,omitempty"`
}

type ChatCompletionStreamResponse

type ChatCompletionStreamResponse struct {
	ID      string                       `json:"id"`
	Object  string                       `json:"object"`
	Created int64                        `json:"created"`
	Model   string                       `json:"model"`
	Choices []ChatCompletionStreamChoice `json:"choices"`
}

type Client

type Client struct {
	// contains filtered or unexported fields
}

Client is OpenAI GPT-3 API client.

func NewClient

func NewClient(authToken string) *Client

NewClient creates new OpenAI API client.

func NewClientWithConfig

func NewClientWithConfig(config ClientConfig) *Client

NewClientWithConfig creates new OpenAI API client for specified config.

func NewOrgClient deprecated

func NewOrgClient(authToken, org string) *Client

NewOrgClient creates new OpenAI API client for specified Organization ID.

Deprecated: Please use NewClientWithConfig.

func (*Client) CancelFineTune

func (c *Client) CancelFineTune(ctx context.Context, fineTuneID string) (response FineTune, err error)

CancelFineTune cancel a fine-tune job.

func (*Client) CreateChatCompletion

func (c *Client) CreateChatCompletion(
	ctx context.Context,
	request ChatCompletionRequest,
) (response ChatCompletionResponse, err error)

CreateChatCompletion — API call to Create a completion for the chat message.

func (*Client) CreateChatCompletionStream

func (c *Client) CreateChatCompletionStream(
	ctx context.Context,
	request ChatCompletionRequest,
) (stream *ChatCompletionStream, err error)

CreateChatCompletionStream — API call to create a chat completion w/ streaming support. It sets whether to stream back partial progress. If set, tokens will be sent as data-only server-sent events as they become available, with the stream terminated by a data: [DONE] message.

Example
client := openai.NewClient(os.Getenv("OPENAI_API_KEY"))

stream, err := client.CreateChatCompletionStream(
	context.Background(),
	openai.ChatCompletionRequest{
		Model:     openai.GPT3Dot5Turbo,
		MaxTokens: 20,
		Messages: []openai.ChatCompletionMessage{
			{
				Role:    openai.ChatMessageRoleUser,
				Content: "Lorem ipsum",
			},
		},
		Stream: true,
	},
)
if err != nil {
	fmt.Printf("ChatCompletionStream error: %v\n", err)
	return
}
defer stream.Close()

fmt.Printf("Stream response: ")
for {
	var response openai.ChatCompletionStreamResponse
	response, err = stream.Recv()
	if errors.Is(err, io.EOF) {
		fmt.Println("\nStream finished")
		return
	}

	if err != nil {
		fmt.Printf("\nStream error: %v\n", err)
		return
	}

	fmt.Printf(response.Choices[0].Delta.Content)
}
Output:

func (*Client) CreateCompletion

func (c *Client) CreateCompletion(
	ctx context.Context,
	request CompletionRequest,
) (response CompletionResponse, err error)

CreateCompletion — API call to create a completion. This is the main endpoint of the API. Returns new text as well as, if requested, the probabilities over each alternative token at each position.

If using a fine-tuned model, simply provide the model's ID in the CompletionRequest object, and the server will use the model's parameters to generate the completion.

Example
client := openai.NewClient(os.Getenv("OPENAI_API_KEY"))
resp, err := client.CreateCompletion(
	context.Background(),
	openai.CompletionRequest{
		Model:     openai.GPT3Ada,
		MaxTokens: 5,
		Prompt:    "Lorem ipsum",
	},
)
if err != nil {
	fmt.Printf("Completion error: %v\n", err)
	return
}
fmt.Println(resp.Choices[0].Text)
Output:

func (*Client) CreateCompletionStream

func (c *Client) CreateCompletionStream(
	ctx context.Context,
	request CompletionRequest,
) (stream *CompletionStream, err error)

CreateCompletionStream — API call to create a completion w/ streaming support. It sets whether to stream back partial progress. If set, tokens will be sent as data-only server-sent events as they become available, with the stream terminated by a data: [DONE] message.

Example
client := openai.NewClient(os.Getenv("OPENAI_API_KEY"))
stream, err := client.CreateCompletionStream(
	context.Background(),
	openai.CompletionRequest{
		Model:     openai.GPT3Ada,
		MaxTokens: 5,
		Prompt:    "Lorem ipsum",
		Stream:    true,
	},
)
if err != nil {
	fmt.Printf("CompletionStream error: %v\n", err)
	return
}
defer stream.Close()

for {
	var response openai.CompletionResponse
	response, err = stream.Recv()
	if errors.Is(err, io.EOF) {
		fmt.Println("Stream finished")
		return
	}

	if err != nil {
		fmt.Printf("Stream error: %v\n", err)
		return
	}

	fmt.Printf("Stream response: %#v\n", response)
}
Output:

func (*Client) CreateEditImage

func (c *Client) CreateEditImage(ctx context.Context, request ImageEditRequest) (response ImageResponse, err error)

CreateEditImage - API call to create an image. This is the main endpoint of the DALL-E API.

func (*Client) CreateEmbeddings

func (c *Client) CreateEmbeddings(ctx context.Context, request EmbeddingRequest) (resp EmbeddingResponse, err error)

CreateEmbeddings returns an EmbeddingResponse which will contain an Embedding for every item in |request.Input|. https://beta.openai.com/docs/api-reference/embeddings/create

func (*Client) CreateFile

func (c *Client) CreateFile(ctx context.Context, request FileRequest) (file File, err error)

CreateFile uploads a jsonl file to GPT3 FilePath must be a local file path.

func (*Client) CreateFineTune

func (c *Client) CreateFineTune(ctx context.Context, request FineTuneRequest) (response FineTune, err error)

func (*Client) CreateImage

func (c *Client) CreateImage(ctx context.Context, request ImageRequest) (response ImageResponse, err error)

CreateImage - API call to create an image. This is the main endpoint of the DALL-E API.

Example
client := openai.NewClient(os.Getenv("OPENAI_API_KEY"))

respURL, err := client.CreateImage(
	context.Background(),
	openai.ImageRequest{
		Prompt:         "Parrot on a skateboard performs a trick, cartoon style, natural light, high detail",
		Size:           openai.CreateImageSize256x256,
		ResponseFormat: openai.CreateImageResponseFormatURL,
		N:              1,
	},
)
if err != nil {
	fmt.Printf("Image creation error: %v\n", err)
	return
}
fmt.Println(respURL.Data[0].URL)
Output:

Example (Base64)
client := openai.NewClient(os.Getenv("OPENAI_API_KEY"))

resp, err := client.CreateImage(
	context.Background(),
	openai.ImageRequest{
		Prompt:         "Portrait of a humanoid parrot in a classic costume, high detail, realistic light, unreal engine",
		Size:           openai.CreateImageSize512x512,
		ResponseFormat: openai.CreateImageResponseFormatB64JSON,
		N:              1,
	},
)
if err != nil {
	fmt.Printf("Image creation error: %v\n", err)
	return
}

b, err := base64.StdEncoding.DecodeString(resp.Data[0].B64JSON)
if err != nil {
	fmt.Printf("Base64 decode error: %v\n", err)
	return
}

f, err := os.Create("example.png")
if err != nil {
	fmt.Printf("File creation error: %v\n", err)
	return
}
defer f.Close()

_, err = f.Write(b)
if err != nil {
	fmt.Printf("File write error: %v\n", err)
	return
}

fmt.Println("The image was saved as example.png")
Output:

func (*Client) CreateTranscription

func (c *Client) CreateTranscription(
	ctx context.Context,
	request AudioRequest,
) (response AudioResponse, err error)

CreateTranscription — API call to create a transcription. Returns transcribed text.

Example
client := openai.NewClient(os.Getenv("OPENAI_API_KEY"))
resp, err := client.CreateTranscription(
	context.Background(),
	openai.AudioRequest{
		Model:    openai.Whisper1,
		FilePath: "recording.mp3",
	},
)
if err != nil {
	fmt.Printf("Transcription error: %v\n", err)
	return
}
fmt.Println(resp.Text)
Output:

Example (Captions)
client := openai.NewClient(os.Getenv("OPENAI_API_KEY"))

resp, err := client.CreateTranscription(
	context.Background(),
	openai.AudioRequest{
		Model:    openai.Whisper1,
		FilePath: os.Args[1],
		Format:   openai.AudioResponseFormatSRT,
	},
)
if err != nil {
	fmt.Printf("Transcription error: %v\n", err)
	return
}
f, err := os.Create(os.Args[1] + ".srt")
if err != nil {
	fmt.Printf("Could not open file: %v\n", err)
	return
}
defer f.Close()
if _, err = f.WriteString(resp.Text); err != nil {
	fmt.Printf("Error writing to file: %v\n", err)
	return
}
Output:

func (*Client) CreateTranslation

func (c *Client) CreateTranslation(
	ctx context.Context,
	request AudioRequest,
) (response AudioResponse, err error)

CreateTranslation — API call to translate audio into English.

Example
client := openai.NewClient(os.Getenv("OPENAI_API_KEY"))
resp, err := client.CreateTranslation(
	context.Background(),
	openai.AudioRequest{
		Model:    openai.Whisper1,
		FilePath: "recording.mp3",
	},
)
if err != nil {
	fmt.Printf("Translation error: %v\n", err)
	return
}
fmt.Println(resp.Text)
Output:

func (*Client) CreateVariImage

func (c *Client) CreateVariImage(ctx context.Context, request ImageVariRequest) (response ImageResponse, err error)

CreateVariImage - API call to create an image variation. This is the main endpoint of the DALL-E API. Use abbreviations(vari for variation) because ci-lint has a single-line length limit ...

func (*Client) DeleteFile

func (c *Client) DeleteFile(ctx context.Context, fileID string) (err error)

DeleteFile deletes an existing file.

func (*Client) DeleteFineTune

func (c *Client) DeleteFineTune(ctx context.Context, fineTuneID string) (response FineTuneDeleteResponse, err error)

func (*Client) Edits

func (c *Client) Edits(ctx context.Context, request EditsRequest) (response EditsResponse, err error)

Perform an API call to the Edits endpoint.

func (*Client) GetEngine

func (c *Client) GetEngine(
	ctx context.Context,
	engineID string,
) (engine Engine, err error)

GetEngine Retrieves an engine instance, providing basic information about the engine such as the owner and availability.

func (*Client) GetFile

func (c *Client) GetFile(ctx context.Context, fileID string) (file File, err error)

GetFile Retrieves a file instance, providing basic information about the file such as the file name and purpose.

func (*Client) GetFineTune

func (c *Client) GetFineTune(ctx context.Context, fineTuneID string) (response FineTune, err error)

func (*Client) GetModel

func (c *Client) GetModel(ctx context.Context, modelID string) (model Model, err error)

GetModel Retrieves a model instance, providing basic information about the model such as the owner and permissioning.

func (*Client) ListEngines

func (c *Client) ListEngines(ctx context.Context) (engines EnginesList, err error)

ListEngines Lists the currently available engines, and provides basic information about each option such as the owner and availability.

func (*Client) ListFiles

func (c *Client) ListFiles(ctx context.Context) (files FilesList, err error)

ListFiles Lists the currently available files, and provides basic information about each file such as the file name and purpose.

func (*Client) ListFineTuneEvents

func (c *Client) ListFineTuneEvents(ctx context.Context, fineTuneID string) (response FineTuneEventList, err error)

func (*Client) ListFineTunes

func (c *Client) ListFineTunes(ctx context.Context) (response FineTuneList, err error)

func (*Client) ListModels

func (c *Client) ListModels(ctx context.Context) (models ModelsList, err error)

ListModels Lists the currently available models, and provides basic information about each model such as the model id and parent.

func (*Client) Moderations

func (c *Client) Moderations(ctx context.Context, request ModerationRequest) (response ModerationResponse, err error)

Moderations — perform a moderation api call over a string. Input can be an array or slice but a string will reduce the complexity.

type ClientConfig

type ClientConfig struct {
	BaseURL              string
	OrgID                string
	APIType              APIType
	APIVersion           string                    // required when APIType is APITypeAzure or APITypeAzureAD
	AzureModelMapperFunc func(model string) string // replace model to azure deployment name func
	HTTPClient           *http.Client

	EmptyMessagesLimit uint
	// contains filtered or unexported fields
}

ClientConfig is a configuration of a client.

Example (ClientWithProxy)
config := openai.DefaultConfig(os.Getenv("OPENAI_API_KEY"))
port := os.Getenv("OPENAI_PROXY_PORT")
proxyURL, err := url.Parse(fmt.Sprintf("http://localhost:%s", port))
if err != nil {
	panic(err)
}
transport := &http.Transport{
	Proxy: http.ProxyURL(proxyURL),
}
config.HTTPClient = &http.Client{
	Transport: transport,
}

client := openai.NewClientWithConfig(config)

client.CreateChatCompletion( //nolint:errcheck // outside of the scope of this example.
	context.Background(),
	openai.ChatCompletionRequest{
		// etc...
	},
)
Output:

func DefaultAzureConfig

func DefaultAzureConfig(apiKey, baseURL string) ClientConfig
Example
azureKey := os.Getenv("AZURE_OPENAI_API_KEY")       // Your azure API key
azureEndpoint := os.Getenv("AZURE_OPENAI_ENDPOINT") // Your azure OpenAI endpoint
config := openai.DefaultAzureConfig(azureKey, azureEndpoint)
client := openai.NewClientWithConfig(config)
resp, err := client.CreateChatCompletion(
	context.Background(),
	openai.ChatCompletionRequest{
		Model: openai.GPT3Dot5Turbo,
		Messages: []openai.ChatCompletionMessage{
			{
				Role:    openai.ChatMessageRoleUser,
				Content: "Hello Azure OpenAI!",
			},
		},
	},
)

if err != nil {
	fmt.Printf("ChatCompletion error: %v\n", err)
	return
}

fmt.Println(resp.Choices[0].Message.Content)
Output:

func DefaultConfig

func DefaultConfig(authToken string) ClientConfig

func (ClientConfig) GetAzureDeploymentByModel

func (c ClientConfig) GetAzureDeploymentByModel(model string) string

func (ClientConfig) String

func (ClientConfig) String() string

type CompletionChoice

type CompletionChoice struct {
	Text         string        `json:"text"`
	Index        int           `json:"index"`
	FinishReason string        `json:"finish_reason"`
	LogProbs     LogprobResult `json:"logprobs"`
}

CompletionChoice represents one of possible completions.

type CompletionRequest

type CompletionRequest struct {
	Model            string         `json:"model"`
	Prompt           any            `json:"prompt,omitempty"`
	Suffix           string         `json:"suffix,omitempty"`
	MaxTokens        int            `json:"max_tokens,omitempty"`
	Temperature      float32        `json:"temperature,omitempty"`
	TopP             float32        `json:"top_p,omitempty"`
	N                int            `json:"n,omitempty"`
	Stream           bool           `json:"stream,omitempty"`
	LogProbs         int            `json:"logprobs,omitempty"`
	Echo             bool           `json:"echo,omitempty"`
	Stop             []string       `json:"stop,omitempty"`
	PresencePenalty  float32        `json:"presence_penalty,omitempty"`
	FrequencyPenalty float32        `json:"frequency_penalty,omitempty"`
	BestOf           int            `json:"best_of,omitempty"`
	LogitBias        map[string]int `json:"logit_bias,omitempty"`
	User             string         `json:"user,omitempty"`
}

CompletionRequest represents a request structure for completion API.

type CompletionResponse

type CompletionResponse struct {
	ID      string             `json:"id"`
	Object  string             `json:"object"`
	Created int64              `json:"created"`
	Model   string             `json:"model"`
	Choices []CompletionChoice `json:"choices"`
	Usage   Usage              `json:"usage"`
}

CompletionResponse represents a response structure for completion API.

type CompletionStream

type CompletionStream struct {
	// contains filtered or unexported fields
}

func (CompletionStream) Close

func (stream CompletionStream) Close()

func (CompletionStream) Recv

func (stream CompletionStream) Recv() (response T, err error)

type EditsChoice

type EditsChoice struct {
	Text  string `json:"text"`
	Index int    `json:"index"`
}

EditsChoice represents one of possible edits.

type EditsRequest

type EditsRequest struct {
	Model       *string `json:"model,omitempty"`
	Input       string  `json:"input,omitempty"`
	Instruction string  `json:"instruction,omitempty"`
	N           int     `json:"n,omitempty"`
	Temperature float32 `json:"temperature,omitempty"`
	TopP        float32 `json:"top_p,omitempty"`
}

EditsRequest represents a request structure for Edits API.

type EditsResponse

type EditsResponse struct {
	Object  string        `json:"object"`
	Created int64         `json:"created"`
	Usage   Usage         `json:"usage"`
	Choices []EditsChoice `json:"choices"`
}

EditsResponse represents a response structure for Edits API.

type Embedding

type Embedding struct {
	Object    string    `json:"object"`
	Embedding []float32 `json:"embedding"`
	Index     int       `json:"index"`
}

Embedding is a special format of data representation that can be easily utilized by machine learning models and algorithms. The embedding is an information dense representation of the semantic meaning of a piece of text. Each embedding is a vector of floating point numbers, such that the distance between two embeddings in the vector space is correlated with semantic similarity between two inputs in the original format. For example, if two texts are similar, then their vector representations should also be similar.

type EmbeddingModel

type EmbeddingModel int

EmbeddingModel enumerates the models which can be used to generate Embedding vectors.

const (
	Unknown EmbeddingModel = iota
	AdaSimilarity
	BabbageSimilarity
	CurieSimilarity
	DavinciSimilarity
	AdaSearchDocument
	AdaSearchQuery
	BabbageSearchDocument
	BabbageSearchQuery
	CurieSearchDocument
	CurieSearchQuery
	DavinciSearchDocument
	DavinciSearchQuery
	AdaCodeSearchCode
	AdaCodeSearchText
	BabbageCodeSearchCode
	BabbageCodeSearchText
	AdaEmbeddingV2
)

func (EmbeddingModel) MarshalText

func (e EmbeddingModel) MarshalText() ([]byte, error)

MarshalText implements the encoding.TextMarshaler interface.

func (EmbeddingModel) String

func (e EmbeddingModel) String() string

String implements the fmt.Stringer interface.

func (*EmbeddingModel) UnmarshalText

func (e *EmbeddingModel) UnmarshalText(b []byte) error

UnmarshalText implements the encoding.TextUnmarshaler interface. On unrecognized value, it sets |e| to Unknown.

type EmbeddingRequest

type EmbeddingRequest struct {
	// Input is a slice of strings for which you want to generate an Embedding vector.
	// Each input must not exceed 2048 tokens in length.
	// OpenAPI suggests replacing newlines (\n) in your input with a single space, as they
	// have observed inferior results when newlines are present.
	// E.g.
	//	"The food was delicious and the waiter..."
	Input []string `json:"input"`
	// ID of the model to use. You can use the List models API to see all of your available models,
	// or see our Model overview for descriptions of them.
	Model EmbeddingModel `json:"model"`
	// A unique identifier representing your end-user, which will help OpenAI to monitor and detect abuse.
	User string `json:"user"`
}

EmbeddingRequest is the input to a Create embeddings request.

type EmbeddingResponse

type EmbeddingResponse struct {
	Object string         `json:"object"`
	Data   []Embedding    `json:"data"`
	Model  EmbeddingModel `json:"model"`
	Usage  Usage          `json:"usage"`
}

EmbeddingResponse is the response from a Create embeddings request.

type Engine

type Engine struct {
	ID     string `json:"id"`
	Object string `json:"object"`
	Owner  string `json:"owner"`
	Ready  bool   `json:"ready"`
}

Engine struct represents engine from OpenAPI API.

type EnginesList

type EnginesList struct {
	Engines []Engine `json:"data"`
}

EnginesList is a list of engines.

type ErrorResponse

type ErrorResponse struct {
	Error *APIError `json:"error,omitempty"`
}

type File

type File struct {
	Bytes     int    `json:"bytes"`
	CreatedAt int64  `json:"created_at"`
	ID        string `json:"id"`
	FileName  string `json:"filename"`
	Object    string `json:"object"`
	Owner     string `json:"owner"`
	Purpose   string `json:"purpose"`
}

File struct represents an OpenAPI file.

type FileRequest

type FileRequest struct {
	FileName string `json:"file"`
	FilePath string `json:"-"`
	Purpose  string `json:"purpose"`
}

type FilesList

type FilesList struct {
	Files []File `json:"data"`
}

FilesList is a list of files that belong to the user or organization.

type FineTune

type FineTune struct {
	ID                string              `json:"id"`
	Object            string              `json:"object"`
	Model             string              `json:"model"`
	CreatedAt         int64               `json:"created_at"`
	FineTuneEventList []FineTuneEvent     `json:"events,omitempty"`
	FineTunedModel    string              `json:"fine_tuned_model"`
	HyperParams       FineTuneHyperParams `json:"hyperparams"`
	OrganizationID    string              `json:"organization_id"`
	ResultFiles       []File              `json:"result_files"`
	Status            string              `json:"status"`
	ValidationFiles   []File              `json:"validation_files"`
	TrainingFiles     []File              `json:"training_files"`
	UpdatedAt         int64               `json:"updated_at"`
}

type FineTuneDeleteResponse

type FineTuneDeleteResponse struct {
	ID      string `json:"id"`
	Object  string `json:"object"`
	Deleted bool   `json:"deleted"`
}

type FineTuneEvent

type FineTuneEvent struct {
	Object    string `json:"object"`
	CreatedAt int64  `json:"created_at"`
	Level     string `json:"level"`
	Message   string `json:"message"`
}

type FineTuneEventList

type FineTuneEventList struct {
	Object string          `json:"object"`
	Data   []FineTuneEvent `json:"data"`
}

type FineTuneHyperParams

type FineTuneHyperParams struct {
	BatchSize              int     `json:"batch_size"`
	LearningRateMultiplier float64 `json:"learning_rate_multiplier"`
	Epochs                 int     `json:"n_epochs"`
	PromptLossWeight       float64 `json:"prompt_loss_weight"`
}

type FineTuneList

type FineTuneList struct {
	Object string     `json:"object"`
	Data   []FineTune `json:"data"`
}

type FineTuneRequest

type FineTuneRequest struct {
	TrainingFile                 string    `json:"training_file"`
	ValidationFile               string    `json:"validation_file,omitempty"`
	Model                        string    `json:"model,omitempty"`
	Epochs                       int       `json:"n_epochs,omitempty"`
	BatchSize                    int       `json:"batch_size,omitempty"`
	LearningRateMultiplier       float32   `json:"learning_rate_multiplier,omitempty"`
	PromptLossRate               float32   `json:"prompt_loss_rate,omitempty"`
	ComputeClassificationMetrics bool      `json:"compute_classification_metrics,omitempty"`
	ClassificationClasses        int       `json:"classification_n_classes,omitempty"`
	ClassificationPositiveClass  string    `json:"classification_positive_class,omitempty"`
	ClassificationBetas          []float32 `json:"classification_betas,omitempty"`
	Suffix                       string    `json:"suffix,omitempty"`
}

type ImageEditRequest

type ImageEditRequest struct {
	Image          *os.File `json:"image,omitempty"`
	Mask           *os.File `json:"mask,omitempty"`
	Prompt         string   `json:"prompt,omitempty"`
	N              int      `json:"n,omitempty"`
	Size           string   `json:"size,omitempty"`
	ResponseFormat string   `json:"response_format,omitempty"`
}

ImageEditRequest represents the request structure for the image API.

type ImageRequest

type ImageRequest struct {
	Prompt         string `json:"prompt,omitempty"`
	N              int    `json:"n,omitempty"`
	Size           string `json:"size,omitempty"`
	ResponseFormat string `json:"response_format,omitempty"`
	User           string `json:"user,omitempty"`
}

ImageRequest represents the request structure for the image API.

type ImageResponse

type ImageResponse struct {
	Created int64                    `json:"created,omitempty"`
	Data    []ImageResponseDataInner `json:"data,omitempty"`
}

ImageResponse represents a response structure for image API.

type ImageResponseDataInner

type ImageResponseDataInner struct {
	URL     string `json:"url,omitempty"`
	B64JSON string `json:"b64_json,omitempty"`
}

ImageResponseDataInner represents a response data structure for image API.

type ImageVariRequest

type ImageVariRequest struct {
	Image          *os.File `json:"image,omitempty"`
	N              int      `json:"n,omitempty"`
	Size           string   `json:"size,omitempty"`
	ResponseFormat string   `json:"response_format,omitempty"`
}

ImageVariRequest represents the request structure for the image API.

type LogprobResult

type LogprobResult struct {
	Tokens        []string             `json:"tokens"`
	TokenLogprobs []float32            `json:"token_logprobs"`
	TopLogprobs   []map[string]float32 `json:"top_logprobs"`
	TextOffset    []int                `json:"text_offset"`
}

LogprobResult represents logprob result of Choice.

type Model

type Model struct {
	CreatedAt  int64        `json:"created"`
	ID         string       `json:"id"`
	Object     string       `json:"object"`
	OwnedBy    string       `json:"owned_by"`
	Permission []Permission `json:"permission"`
	Root       string       `json:"root"`
	Parent     string       `json:"parent"`
}

Model struct represents an OpenAPI model.

type ModelsList

type ModelsList struct {
	Models []Model `json:"data"`
}

ModelsList is a list of models, including those that belong to the user or organization.

type ModerationRequest

type ModerationRequest struct {
	Input string `json:"input,omitempty"`
	Model string `json:"model,omitempty"`
}

ModerationRequest represents a request structure for moderation API.

type ModerationResponse

type ModerationResponse struct {
	ID      string   `json:"id"`
	Model   string   `json:"model"`
	Results []Result `json:"results"`
}

ModerationResponse represents a response structure for moderation API.

type Permission

type Permission struct {
	CreatedAt          int64       `json:"created"`
	ID                 string      `json:"id"`
	Object             string      `json:"object"`
	AllowCreateEngine  bool        `json:"allow_create_engine"`
	AllowSampling      bool        `json:"allow_sampling"`
	AllowLogprobs      bool        `json:"allow_logprobs"`
	AllowSearchIndices bool        `json:"allow_search_indices"`
	AllowView          bool        `json:"allow_view"`
	AllowFineTuning    bool        `json:"allow_fine_tuning"`
	Organization       string      `json:"organization"`
	Group              interface{} `json:"group"`
	IsBlocking         bool        `json:"is_blocking"`
}

Permission struct represents an OpenAPI permission.

type RequestError

type RequestError struct {
	HTTPStatusCode int
	Err            error
}

RequestError provides informations about generic request errors.

func (*RequestError) Error

func (e *RequestError) Error() string

func (*RequestError) Unwrap

func (e *RequestError) Unwrap() error

type Result

type Result struct {
	Categories     ResultCategories     `json:"categories"`
	CategoryScores ResultCategoryScores `json:"category_scores"`
	Flagged        bool                 `json:"flagged"`
}

Result represents one of possible moderation results.

type ResultCategories

type ResultCategories struct {
	Hate            bool `json:"hate"`
	HateThreatening bool `json:"hate/threatening"`
	SelfHarm        bool `json:"self-harm"`
	Sexual          bool `json:"sexual"`
	SexualMinors    bool `json:"sexual/minors"`
	Violence        bool `json:"violence"`
	ViolenceGraphic bool `json:"violence/graphic"`
}

ResultCategories represents Categories of Result.

type ResultCategoryScores

type ResultCategoryScores struct {
	Hate            float32 `json:"hate"`
	HateThreatening float32 `json:"hate/threatening"`
	SelfHarm        float32 `json:"self-harm"`
	Sexual          float32 `json:"sexual"`
	SexualMinors    float32 `json:"sexual/minors"`
	Violence        float32 `json:"violence"`
	ViolenceGraphic float32 `json:"violence/graphic"`
}

ResultCategoryScores represents CategoryScores of Result.

type Usage

type Usage struct {
	PromptTokens     int `json:"prompt_tokens"`
	CompletionTokens int `json:"completion_tokens"`
	TotalTokens      int `json:"total_tokens"`
}

Usage Represents the total token usage per request to OpenAI.

Directories

Path Synopsis
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