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Build a MessagePack Parser

Build a MessagePack encoder/decoder: format byte detection, varint-style integer encoding, length-prefixed strings/bytes/arrays/maps, ext types for custom types (timestamps, UUIDs), and the binary alternative to JSON used by Redis, Pinterest, IoT systems.

intermediate10 lessons4 chapters10 graded exercisesPython

No sign-up needed for lesson 1 · certificate on completion · sign up to save progress

What you’ll have built

Chapter by chapter. Every step is a graded exercise.

  • Format Basics
  • Composite Types
  • Implementation
  • Production
Starts in Python — solve in the language you choose in the editor, same tests either way.

Curriculum

4 chapters, 10 lessons. Each lesson is a short read, one graded exercise, and a quiz.

  1. 1What MessagePack IsRead · exercise · quiz
  2. 2Primitive TypesRead · exercise · quiz
  3. 3String EncodingRead · exercise · quiz
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