How is uploading photos to a user's wall different from saving to an album?

Question

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In other words, the differences between these methods https://vk.com/dev/photos.getWallUploadServer. https://vk.com/dev/photos.getUploadServer

Answer 1

photos.getWallUploadServer - uploading a photo to a minus album, i.e. just save the photo somewhere for further use (when attaching a user or group to a post).
photos.getUploadServer - uploading a photo to a specific album of a user or group and then saving it in the album
. For example, when posting a post on a wall, there is no need to save the photo to any album, that's why there is getWallUploadServer.

Answer 2

Before you ask, think for yourself!
photos.getWallUploadServer
Returns the server address for uploading a photo to a user or community wall.
photos.getUploadServer
Returns the server address for uploading photos.
After a successful upload, the photo can be saved using the photos.save method.
That is, 1 is the address for uploading to the wall, and 2 is the address for uploading a photo and saving it.