Re: Track Users Downloading

[Junlong li]

I think tracking the number of people downloading a file for the current minute or current second is a better solution.

You can save the statistic in the shared dict in the log_by_lua_* phase.

Go to https://github.com/openresty/lua-nginx-module#ngxshareddictincr for how to use the shared dict.

On Monday, May 1, 2023 at 7:50:30 PM UTC+8 dania...@gmail.com wrote:

 i want to track the number of people currently downloading a file

couldnt find nginx built in option for this

can someone explain what is the best approach? i know i can track the log file, but wondering if there is another options

[Reed Weichler]

If you don't care about timestamps, I would just use redis for this

local redis = require 'resty.redis':new()

redis:connect('127.0.0.1', 6379)

redis:inc('download_count:'..ngx.var.request_uri)

Easy

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[Reed Weichler]

And here is some docs:

https://github.com/openresty/lua-resty-redis

https://redis.io/commands/incr/

Only con IMO is the added dependency

[Reed Weichler]

Oops sorry the code was wrong I meant to do:

local redis = require 'resty.redis':new()

redis:connect('127.0.0.1', 6379)

redis:incr('download_count:'..ngx.var.request_uri)