rlopzc
Blog Post: Elixir FTP Client: GenServer - Part 1
Learn how to leverage Erlang + Elixir’s GenServer to build a robust FTP Client.
https://rlopzc.com/posts/elixir-ftp-client-genserver-part-1/
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First Post!
mudasobwa
Well put! The only thing that bugs me is this code would suffer crashes operating against slow ftp servers. The code below would blow up if there is no response for
:ftp.ls/0is 5 seconds.I would probably put a greater timeout or even
:infinitythere.Most Liked
adamu
I think it would be useful to include automated tests, as especially for clients and GenServers, this is likely to considerably change the design.
D4no0
No, we were strictly using passive mode, it would be extremely annoying to set the infrastructure to allow incoming connections.
We did have an issue where data transfer would not work. There was a misconfigured
ftpserver behind a proxy that would send its local IP for data connections, but send the correct public one for commands, so it would work until you wanted to make file transfers. What I ended up doing was to extract theftplibrary from OTP, mass rename it and change the library to always fetch the IP from the initial command connection for data connections.I don’t remember exactly how I found out the exact issue, but I think it was by running
ftpin verbose mode, it literally shows all the steps it takes if I remember correctly.