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Sometimes, we want to parse request.body from POST in Python Django.

In this article, we’ll look at how to parse request.body from POST in Python Django.

How to parse request.body from POST in Python Django?

To parse request.body from POST in Python Django, we can call decode to decode the request.body binary string into a JSON string.

Then we call json.loads with the returned string to convert it to a dict.

For instance, we write

body_unicode = request.body.decode('utf-8')
body = json.loads(body_unicode)
content = body['content']

We call request.body.decode with the string encoding to decode to to decode the request.body binary string.

Then we call json.loads with the body_unicode JSON string to return a dict from the JSON string.

Conclusion

To parse request.body from POST in Python Django, we can call decode to decode the request.body binary string into a JSON string.

Then we call json.loads with the returned string to convert it to a dict.

Sometimes, we want to disable Python Django’s CSRF validation.

In this article, we’ll look at how to disable Python Django’s CSRF validation.

How to disable Python Django’s CSRF validation?

To disable Python Django’s CSRF validation, we can use the csrf_exempt decorator on a view.

For instance, we write

from django.views.decorators.csrf import csrf_exempt

@csrf_exempt
def my_view(request):
    return HttpResponse('Hello world')

to create the my_view view.

We use the csrf_exempt decorator to make Django skip CSRF validation when making a request to this view.

Conclusion

To disable Python Django’s CSRF validation, we can use the csrf_exempt decorator on a view.

Sometimes, we want to show a PDF file in a Python Django view.

In this article, we’ll look at how to show a PDF file in a Python Django view.

How to show a PDF file in a Python Django view?

To show a PDF file in a Python Django view, we can create a FileResponse and return it.

For instance, we write

from django.http import FileResponse, Http404

def pdf_view(request):
    try:
        return FileResponse(open('foobar.pdf', 'rb'), content_type='application/pdf')
    except FileNotFoundError:
        raise Http404()

to create the pdf_view view that returns the FileResponse object that we create by opening the foobar.pdf PDF file.

We set the content_type argument to 'application/pdf' to make the client know that the file is a PDF.

If the file isn’t found, then we return a 404 response with Http404.

Conclusion

To show a PDF file in a Python Django view, we can create a FileResponse and return it.

Sometimes, we want to fix ProgrammingError: SQLite objects created in a thread can only be used in that same thread with Python SQLite3

In this article, we’ll look at how to fix ProgrammingError: SQLite objects created in a thread can only be used in that same thread with Python SQLite3.

How to fix ProgrammingError: SQLite objects created in a thread can only be used in that same thread with Python SQLite3?

To fix ProgrammingError: SQLite objects created in a thread can only be used in that same thread with Python SQLite3, we can call sqlite3.connect with check_same_thread set to False.

For instance, we wrikte

conn = sqlite3.connect('your.db', check_same_thread=False)

to call sqlite3.connect with the check_same_thread set to False so that SQLite objects created in any thread can be used in any other thread.

Conclusion

To fix ProgrammingError: SQLite objects created in a thread can only be used in that same thread with Python SQLite3, we can call sqlite3.connect with check_same_thread set to False.

Sometimes, we want to fix Python Flask Value error view function did not return a response.

In this article, we’ll look at how to fix Python Flask Value error view function did not return a response.

How to fix Python Flask Value error view function did not return a response?

To fix Python Flask Value error view function did not return a response, we should return a response in our view.

For instance, we write

@app.route('/')
def my_form():
    return render_template("my-form.html")

to call render_template with the template file name to return the template with the given file name as the response.

Conclusion

To fix Python Flask Value error view function did not return a response, we should return a response in our view.