How to upload photos from an album as a document through vk api?

Question

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I want photos from the album to be sent in messages as a document (in the attachment field there was doc and not photo). I can't figure out how to do it. So far I have done this: the photos are in a separate directory near the bot, the bot first uploads the photo to the server, takes its ID and, using the newly received photo ID, sends it as a document to the user. But in this way, each time another photo is uploaded to the group. How to do it normally?

Answer 1

You do not understand the work of attaching VKontakte. In order to send a photo and a document, they must be uploaded separately. The photo is compressed, but the document is not.