Build Your Own BitTorrent Client
Build a complete BitTorrent client from scratch. You'll implement bencoding for the wire format, parse .torrent metainfo and magnet URIs, talk to HTTP and UDP trackers, perform the peer handshake, frame typed peer messages, verify pieces with SHA-1, and implement rarest-first piece selection. By the end you'll deeply understand what qBittorrent, Transmission, and libtorrent actually do.
intermediate13 lessons4 chapters13 graded exercisesPython
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What you’ll have built
Chapter by chapter. Every step is a graded exercise.
- Bencoding & Metainfo
- Tracker Communication
- Peer Wire Protocol
- Pieces, Strategy & Production
Starts in Python — solve in the language you choose in the editor, same tests either way.
Curriculum
4 chapters, 13 lessons. Each lesson is a short read, one graded exercise, and a quiz.
- 1BencodingRead · exercise · quiz
- 2The .torrent Metainfo FileRead · exercise · quiz
- 3Magnet URIsRead · exercise · quiz
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