README
¶
Image Usecase
The usecase for image is only 2(at least for now):
- Upload Image
- Download Image
Upload Image
There are two mode for uploading image:
- Public
- Private
We want to have different mode, because not all image is public. We might want to store a sensitive image related to customer.
Private Image
When uploading the private image, metadata attribute is saved alongside the image. In this metadata, contains the access and priviledge that belong to spesific user. This to make sure that private image can only be accessed by the rightful users.
Download Image
Download image usecase exists to serve private image. Image that belong to one user and is private should not visible to other users. So we need to check whether the downloader is the rightful user.
Temporary Path
To be added
Object Storage Signed URL
To be added
TODO
- Image manipulation(resize)
- Image compression
Documentation
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Index ¶
- type Image
- type Usecase
- func (u *Usecase) Download(ctx context.Context, imagePath string, userHash userentity.Hash, admin bool) ([]byte, error)
- func (u *Usecase) FilePathFromTemporaryPath(ctx context.Context, tempPath string) (string, error)
- func (u *Usecase) GenerateSignedURL(ctx context.Context, filePath string, expiry time.Duration) (string, error)
- func (u *Usecase) GenerateTemporaryPath(ctx context.Context, filepath string, expiryTime time.Duration) (string, error)
- func (u *Usecase) GenerateTemporaryURL(ctx context.Context, filePath string, expiry time.Duration) (string, error)
- func (u *Usecase) GetImageFilePath(ctx context.Context, imagePath string) (prefix, filePath string, err error)
- func (u *Usecase) Upload(ctx context.Context, reader io.Reader, info imageentity.FileInfo) (Image, error)
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
This section is empty.
Types ¶
type Image ¶
type Image struct {
Proto string
Host string
FilePath string
DownloadPath string
DownloadLink string
}
Image struct
type Usecase ¶
type Usecase struct {
// contains filtered or unexported fields
}
Usecase of image
func New ¶
func New(privateStorage *objectstorage.Storage, imageRepo imageRepository, objStoragePath *objstoragepath.ObjectStoragePath) (*Usecase, error)
New image usecase
func (*Usecase) Download ¶
func (u *Usecase) Download(ctx context.Context, imagePath string, userHash userentity.Hash, admin bool) ([]byte, error)
Download image download usecase never use a public storage as public storage being served via CDN and local filesystem in LOCAL to download temporary filepath, use format: temporary:{id}
func (*Usecase) FilePathFromTemporaryPath ¶
FilePathFromTemporaryPath path return the true filepath from temporary endpoint
func (*Usecase) GenerateSignedURL ¶
func (u *Usecase) GenerateSignedURL(ctx context.Context, filePath string, expiry time.Duration) (string, error)
GenerateSignedURL for generating temporary path to download image directly from object storage provider this method is different from temporary as we are not serving the download from our server
func (*Usecase) GenerateTemporaryPath ¶
func (u *Usecase) GenerateTemporaryPath(ctx context.Context, filepath string, expiryTime time.Duration) (string, error)
GenerateTemporaryPath for generating path to download image but with disposable image path this is useful for secure image handling
func (*Usecase) GenerateTemporaryURL ¶
func (u *Usecase) GenerateTemporaryURL(ctx context.Context, filePath string, expiry time.Duration) (string, error)
GenerateTemporaryURL directly from backend instad of using object-storage url, this will use image-proxy url
Source Files
Directories