Python flask on downloading zip file gets corrupted


Python flask on downloading zip file gets corrupted



I have written following python flask code to download zip file.


@ns.route('/zip_file_download', strict_slashes=False)
class ZipDownload(Resource):
def get(self):
output_path = os.path.abspath(os.path.join(os.getcwd(), './out'))
out_file_name = os.path.join(output_path, 'sample.zip')
r = send_file(out_file_name, mimetype='application/octet-stream',
attachment_filename='sample.zip', as_attachment=True)
return r



This downloads the zip file but on extracting the zip file it gives an error - Error - 21 - is not a directory - Unable to expand probably because it gets corrupted. I also tried with send_from_directory but the same error crept there too. I am developing this on Mac machine but the downloaded files are also corrupted when opened on windows or an other OS. Any suggestions?



PS: Moreover, this issue is only happening when running the API from a Mac machine. Things seem to be fine when ran from windows on linux machine. It's quite peculiar.





Found this on web: pythonprogramming.net/flask-send-file-tutorial have you tried that?
– Fábio Correia
Jun 27 at 12:40






Your code seems to be correct. The only reason you are getting a faulty .zip is either its corrupt from source, or there is something wrong in your path (out_file_name). Use print() function to print the path on the console before sending the response, and check whether its correct.
– Prahlad Yeri
Jun 27 at 23:29


out_file_name


print()





The path is correct. I have already checked that. Also the file at the source is correct. Moreover, this issue is only happening when running the API from a Mac machine. Things seem to be fine when ran from windows on linux machine. It's quite peculiar.
– Ujjwal Upadhyay
Jun 29 at 10:25









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