/
image.go
145 lines (129 loc) · 3.59 KB
/
image.go
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package openai
import (
"bytes"
"context"
"encoding/json"
"fmt"
"io"
"mime/multipart"
"net/http"
"os"
)
const (
SMALL string = "256x256"
MEDIUM string = "512x512"
LARGE string = "1024x1024"
)
type ImageRequest struct {
Num uint8 `json:"n,omitempty"`
Prompt string `json:"prompt"`
Size string `json:"size,omitempty"`
ResponseFormat string `json:"response_format,omitempty"`
User string `json:"user,omitempty"`
}
type ImageEditRequest struct {
Num uint8 `json:"n,omitempty"`
Image string `json:"image"`
ImagePath string `json:"-"`
Mask string `json:"mask"`
MaskPath string `json:"-"`
Prompt string `json:"prompt"`
Size string `json:"size,omitempty"`
ResponseFormat string `json:"response_format,omitempty"`
User string `json:"user,omitempty"`
}
type ImageVariationRequest struct {
Num uint8 `json:"n,omitempty"`
Image string `json:"image"`
ImagePath string `json:"-"`
Prompt string `json:"prompt"`
Size string `json:"size,omitempty"`
ResponseFormat string `json:"response_format,omitempty"`
User string `json:"user,omitempty"`
}
type ImageURL struct {
URL string `json:"url"`
}
type ImageResponse struct {
Created int `json:"created"`
Data []ImageURL `json:"data"`
}
// Generates the correct http.Request object for the given API Request Struct.
func (ir *ImageRequest) GenerateHTTPRequest(ctx context.Context) (response *http.Request, err error) {
reqBytes, err := json.Marshal(ir)
if err != nil {
return nil, err
}
url := fmt.Sprintf("%s/%s", apiURL, "images/generations")
req, err := http.NewRequest("POST", url, bytes.NewBuffer(reqBytes))
if err != nil {
return nil, err
}
req = req.WithContext(ctx)
req.Header.Set("Content-Type", "application/json; charset=utf-8")
return req, nil
}
// Generates the correct http.Request object for the given API Request Struct.
func (ivr *ImageVariationRequest) GenerateHTTPRequest(ctx context.Context) (response *http.Request, err error) {
var buff bytes.Buffer
buffW := multipart.NewWriter(&buff)
defer buffW.Close()
fw, err := buffW.CreateFormFile("image", ivr.Image)
if err != nil {
return nil, err
}
imageData, err := os.Open(ivr.ImagePath)
if err != nil {
return nil, err
}
_, err = io.Copy(fw, imageData)
if err != nil {
return nil, err
}
url := fmt.Sprintf("%s/%s", apiURL, "images/variations")
req, err := http.NewRequest("POST", url, &buff)
if err != nil {
return nil, err
}
req = req.WithContext(ctx)
req.Header.Set("Content-Type", "multipart/form-data")
return req, nil
}
// Generates the correct http.Request object for the given API Request Struct.
func (ier *ImageEditRequest) GenerateHTTPRequest(ctx context.Context) (response *http.Request, err error) {
var buff bytes.Buffer
buffW := multipart.NewWriter(&buff)
defer buffW.Close()
fw, err := buffW.CreateFormFile("image", ier.Image)
if err != nil {
return nil, err
}
imageData, err := os.Open(ier.ImagePath)
if err != nil {
return nil, err
}
_, err = io.Copy(fw, imageData)
if err != nil {
return nil, err
}
mw, err := buffW.CreateFormFile("mask", ier.Mask)
if err != nil {
return nil, err
}
maskData, err := os.Open(ier.MaskPath)
if err != nil {
return nil, err
}
_, err = io.Copy(mw, maskData)
if err != nil {
return nil, err
}
url := fmt.Sprintf("%s/%s", apiURL, "images/edits")
req, err := http.NewRequest("POST", url, &buff)
if err != nil {
return nil, err
}
req = req.WithContext(ctx)
req.Header.Set("Content-Type", "multipart/form-data")
return req, nil
}