File transfer from server to user

Question

The structure is approximately as follows:

The user presses the "Generate Report" button, on the server it is generated in a zip file and must be transferred back to the user. How can this be done in flask or through request request?

The server part is written in python3 using flask

Answer 1 · 2017-06-16T14:05:05

Do you use nginx ? If yes, then it seems to me that you can save python from uploading the file, when the user requests the server generates an archive and writes it to a specific directory, with a specific name, returns the file name to the client, and in the nginx settings you can assign an alias to the directory, respectively urlu type https://domen.com/you_folder/?file=file_name user can get his file.

Here is an example of the nginx configuration and more

Python and zip

The appropriateness of this depends on the size of the archive
Despite how you do it, you can, for example, generate random letters that another user cannot recognize and receive afile
Yes, nginx is used, can you write in more detail how to add access to the directory?
Absolutely right, another user will be able to get the file if he knows his name, however if the file name is W123gYeb-yus67+datetime it will be difficult, and yes, it depends on the size of the files, on their number and on the number of users

Answer 2 · 2017-06-16T16:01:02

Here about file transfer

If we talk about the report, then everything is too individual to give any specifics.

Form a question about the report and data archiving. What will be contained in the archive, and if more precisely, which files from the archive should be generated using Flask .

If a csv, xls, pdf file is generated based on data from the database, and there is a lot of data, then it is better to queue such a task.

@ Sergey, do you already have a code that zip itself generates?
If yes, then use one of those methods that I cited by reference to another answer.

File transfer from server to user

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