How can I validate an image in a POST?

Question

Django

Hello.
I'm writing an API using Django Rest Framework.
Wrote a method that saves a picture that comes in a POST request.
How can I check it?
If everything is clear with text data, then what about files, in this case with an image?
I tried to create an html file with the form and the fields that the method accepts, but then it swears at the csrf token, which is not in the form.

Answer 1

python2or3.blogspot.com/2015/05/blog-post.html

Answer 2

through the extension i.e. jpeg png or svg . A more detailed question, but somehow it's not very clear

Answer 3

Write a test .