How to intentionally cause a 400 Bad Request in Python/Flask?

Question

A consumer of my REST API says that on occasion I am returning a 400 Bad Request - The request sent by the client was syntactically incorrect. error.

Answer 1

Also, You can use jsonify

from flask import jsonify

class SomeView(MethodView):
    def post(self, *args, **kwargs):
        if "csv_file" not in request.files:
            return jsonify({'errors': 'No csv_file key in request.files.'}), 400