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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,118 @@ | ||
| package handler | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "context" | ||
| "fmt" | ||
| "io" | ||
| "log" | ||
| "mime/multipart" | ||
| "net/http" | ||
| "os" | ||
| "strings" | ||
|
|
||
| "github.com/aws/aws-sdk-go-v2/aws" | ||
| "github.com/aws/aws-sdk-go-v2/config" | ||
| "github.com/aws/aws-sdk-go-v2/service/s3" | ||
| "github.com/docker/distribution/uuid" | ||
| "github.com/gin-gonic/gin" | ||
| "github.com/joho/godotenv" | ||
| ) | ||
|
|
||
| type ImageHandler struct {} | ||
|
|
||
| func NewImageHandler() ImageHandlerInterface { | ||
| return &ImageHandler{} | ||
| } | ||
|
|
||
| const ( | ||
| maxUploadSize = 2 * 1024 * 1024 // 2MB | ||
| minUploadSize = 10 * 1024 // 10KB | ||
|
|
||
| ) | ||
|
|
||
| var s3Client *s3.Client | ||
|
|
||
| func init() { | ||
| err := godotenv.Load() | ||
| if err != nil { | ||
| log.Println("Error loading .env file:", err) | ||
| return | ||
| } | ||
|
|
||
| // Load the AWS configuration | ||
| cfg, err := config.LoadDefaultConfig(context.TODO(), config.WithRegion(os.Getenv("AWS_REGION"))) | ||
| if err != nil { | ||
| log.Fatalf("unable to load SDK config, %v", err) | ||
| } | ||
|
|
||
| // Create an S3 client | ||
| s3Client = s3.NewFromConfig(cfg) | ||
| } | ||
|
|
||
| func (h *ImageHandler) UploadImage(c *gin.Context) { | ||
| err := c.Request.ParseMultipartForm(maxUploadSize) | ||
| if err != nil { | ||
| c.JSON(http.StatusBadRequest, gin.H{"error": "Unable to parse form"}) | ||
| return | ||
| } | ||
|
|
||
| file, handler, err := c.Request.FormFile("file") | ||
| if err != nil { | ||
| c.JSON(http.StatusBadRequest, gin.H{"error": "File is required"}) | ||
| return | ||
| } | ||
| defer file.Close() | ||
|
|
||
| // Validate file size | ||
| if handler.Size > maxUploadSize { | ||
| c.JSON(http.StatusBadRequest, gin.H{"error": "File size exceeds 2MB"}) | ||
| return | ||
| } | ||
| if handler.Size < minUploadSize { | ||
| c.JSON(http.StatusBadRequest, gin.H{"error": "File size is less than 10KB"}) | ||
| return | ||
| } | ||
|
|
||
| // Validate file type | ||
| if !strings.HasSuffix(handler.Filename, ".jpg") && !strings.HasSuffix(handler.Filename, ".jpeg") { | ||
| c.JSON(http.StatusBadRequest, gin.H{"error": "Invalid file type, only .jpg and .jpeg are allowed"}) | ||
| return | ||
| } | ||
|
|
||
| // Generate a unique file name | ||
| fileName := fmt.Sprintf("%s%s", uuid.Generate().String(), ".jpeg") | ||
|
|
||
| // Upload the file to S3 | ||
| err = uploadFileToS3(file, fileName) | ||
| if err != nil { | ||
| c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to upload file"}) | ||
| return | ||
| } | ||
|
|
||
| // Respond with the URL of the uploaded file | ||
| imageURL := fmt.Sprintf("https://%s.s3.amazonaws.com/%s", os.Getenv("AWS_S3_BUCKET_NAME"), fileName) | ||
| c.JSON(http.StatusCreated, gin.H{ | ||
| "message": "File uploaded successfully", | ||
| "data": gin.H{ | ||
| "imageUrl": imageURL, | ||
| }, | ||
| }) | ||
| } | ||
|
|
||
| func uploadFileToS3(file multipart.File, fileName string) error { | ||
| // Read the file content into a buffer | ||
| buf := bytes.NewBuffer(nil) | ||
| if _, err := io.Copy(buf, file); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| // Upload the file to S3 | ||
| _, err := s3Client.PutObject(context.TODO(), &s3.PutObjectInput{ | ||
| Bucket: aws.String(os.Getenv("AWS_S3_BUCKET_NAME")), | ||
| Key: aws.String(fileName), | ||
| Body: bytes.NewReader(buf.Bytes()), | ||
| ACL: "public-read", | ||
| }) | ||
| return err | ||
| } |