Due to an existing project, you need to load picture, picture are mostly read from a third-party repository. There is a ratio of the original service, a picture of the repository service will be downloaded to the local disk. But part of the data processing is finished, and did not download pictures. When the show cause, you need to read from a third-party repository. Then change the picture from the repository. So, I thought I could build a photo service site. Only need to reference the address of the picture, if the picture on server disk does not exist, from the third-party repository download.
Intended to look online there is no one else has done this thing, but later found FaskDFS this thing. Feeling in line with expected demand.