Project to receive the first 500 bytes of a file coming from client-side before it gets completely downloaded onto the server.

[Milind Yadav]

Hi,

I am trying to receive the first 500 bytes of a file coming from client-side before it gets completely downloaded onto the server.

I need to compute the hash value of the first 500 bytes and compare with hashes in database. If no match is found then resume the download i.e. remaining bytes are sent and the file gets saved onto the server.

PSEUDO-CODE:

from django.incoming.data import packets

first_500 = []

for packet in packets:

    

    if first_500.size+packet.body.size <= 500 bytes:

        first_500.append(packet.body)

    

    else:

        temp = packet.body.slice_body(500 bytes-first_500.size)

        first_500.append(temp)

        break

This will save a lot of time and space in case a duplicate is encountered.

Regards

[Sreevardhan Reddy]

here is the code

if request.method == 'POST':

     hash = request.FILES['uploaded_file'].read()[:-500]

     #check if a hash exists in the database

[Adam Johnson]

Hi!

I think you've found the wrong mailing list for this post. This mailing list is for the development of Django itself, not for support using Django. This means the discussions of bugs and features in Django itself, rather than in your code using it. People on this list are unlikely to answer your support query with their limited time and energy. Read more on the mailing lists at https://www.djangoproject.com/community/

For support, please use the django-users mailing list, or IRC #django on Freenode, or a site like Stack Overflow. There are people out there willing to help on those channels, but they might not respond if you don't ask your question well. Stack Overflow's question guide can help you frame it well: https://stackoverflow.com/help/how-to-ask .

Also if you haven't read it, please take a look at Django's Code of Conduct: https://www.djangoproject.com/conduct/ . These are our "ground rules" for working well as a community, and will help you get the most out of Django and our fantastic community.

As for your question: Sreevardhan's example code reads the whole uploaded file which isn't ideal. Instead look at UploadedFile.chunks() .

Thanks for your understanding,

Adam

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Adam