Building a BitTorrent client from the ground up in Go (2020)

Thanks, this is really cool. I don't have anything to add; I just want to let the author know this is appreciated. I recently decided to learn Go, and articles like this are a great way to get a feel for how Go programmers think about solving problems with the tools available to them. The kind of knowledge you don't get from just skimming The Go Programming Language and such.

This didn’t dive into it, but I appreciated the suggested search terms for information on decentralized peer discovery. I always wondered how that would work, especially the bootstrapping process. Ultimately I found this StackOverflow answer to be really helpful: <a href="https:&#x2F;&#x2F;stackoverflow.com&#x2F;a&#x2F;22240583" rel="nofollow">https:&#x2F;&#x2F;stackoverflow.com&#x2F;a&#x2F;22240583</a>

As someone who writes Go code daily, nice Go code!

The project author&#x27;s previous submission: <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=21958359" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=21958359</a>

Great post<p>One nit, with the font:<p><pre><code> l4:spami7ee </code></pre> the first two characters look an awful lot like the number &quot;14&quot;, when they&#x27;re actually &quot;L4&quot;. I&#x27;m not sure if bencoding is case sensitive or if anohter font may better differentiate the two, but that may be something the author may want to poke at if they happen to read this comment :)

This looks to have been written on Jan 4, 2020.

&gt; &quot;They’ll send us an unchoke message to let us know that we can begin asking them for data.&quot;<p>What is the purpose of that choke part when connecting to remote peers? Is that some kind of flood protection?

Very helpful. Can someone recommend more of these learn by doing programming blogs?

Hey Jesse, we went to school together but I&#x27;m sure that&#x27;s a ton of people you know by now ;). If you can figure it out hit me up ill show you some Zebra industry stuff I&#x27;ve reversed.

Really nice share! I think I&#x27;ll have a follow-along with this next weekend to improve my go skills and try to learn rust by attempting to port this to it.

It is only downloading, right? Is that tolerated?<p>Anyway it&#x27;s a cool post! Would be nice to see a follow-up for the upload&#x2F;sharing part!

One of the best posts lately. Thanks.

this is good info. i was thinking about making my own, before i discovered picotorrent. but the lack of ui libraries for go prevented me from moving forward. nowadays, with nuts and others, it might be worth a shot.

what happens when the peer is behind NAT? you need to be able to use TCP Hole Punching

Personally I would&#x27;ve preferred a Rust implementation, but nice article nonetheless.

nice cartoons! :D