how can I save an image as a blob

Question

Such as this : https://blob.sololearn.com/avatars/a92301a6-e402-477b-9118-a9ae92f2bfb6.jpg

Answer 1

If I may understand, you're trying to change the link of an avatar from api.sololearn.com/ to blob.sololearn.com ??

Answer 2

You give no hint about language and data base.
But here is all you need for Python and MySQL

https://pynative.com/python-mysql-blob-insert-retrieve-file-image-as-a-blob-in-mysql/