/
image.go
81 lines (66 loc) · 2.36 KB
/
image.go
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package vlgo
import (
"bufio"
"encoding/base64"
"fmt"
"net/http"
"os"
"github.com/dghubble/sling"
)
// ImageService provides an interface for image endpoints.
type ImageService struct {
sling *sling.Sling
}
// newImageService returns a new ImageService.
func newImageService(sling *sling.Sling) *ImageService {
return &ImageService{
sling: sling,
}
}
// ImageUpload is request model for image upload.
type ImageUpload struct {
Image string `json:"image"`
UserID string `json:"userId"`
}
// ImageUploadResponse is response model for image upload.
type ImageUploadResponse struct {
Code int `json:"code"`
Message string `json:"message"`
Type string `json:"type"`
}
// ImageFileToBase64 read image file and creates base64 encoded string.
func (imageService *ImageService) ImageFileToBase64(filePath string) string {
imgFile, err := os.Open(filePath)
if err != nil {
fmt.Println(err)
return ""
}
defer imgFile.Close()
// create a new buffer base on file size
fInfo, _ := imgFile.Stat()
var size int64 = fInfo.Size()
buf := make([]byte, size)
// read file content into buffer
fReader := bufio.NewReader(imgFile)
fReader.Read(buf)
// convert the buffer bytes to base64 string - use buf.Bytes() for new image
imgBase64Str := base64.StdEncoding.EncodeToString(buf)
return imgBase64Str
}
func (imageService *ImageService) uploadImage(imageUpload ImageUpload, imageType Enum) (*ImageUploadResponse, *http.Response, error) {
imageUploadResponse := new(ImageUploadResponse)
resp, err := imageService.sling.New().Post(fmt.Sprintf("/image/%s", Enum.ValueOfImageType(imageType))).QueryStruct(imageUpload).ReceiveSuccess(imageUploadResponse)
return imageUploadResponse, resp, err
}
// UploadIdentity uploads identity image of user.
// Takes user id and image path as parameters.
// Returns image upload response, http response and error.
func (imageService *ImageService) UploadIdentity(imageUpload ImageUpload) (*ImageUploadResponse, *http.Response, error) {
return imageService.uploadImage(imageUpload, ImageType.Identity)
}
// UploadProfile uploads profile image of user.
// Takes user id and image path as parameters.
// Returns image upload response, http response and error.
func (imageService *ImageService) UploadProfile(imageUpload ImageUpload) (*ImageUploadResponse, *http.Response, error) {
return imageService.uploadImage(imageUpload, ImageType.Profile)
}