7days-golang
A tutorial series that builds a web framework, cache, ORM, and RPC library from scratch in Go.
- Stars
- 17k
- Forks
- 2.6k
- Licence
- MIT
- Language
- Go
- Last update
- 2 months ago
- Type
- Learning resource
What it is
This is a set of Go code examples organized as a 7-day build-along course. Each day adds one feature to a small project, such as a web framework similar to gin, a distributed cache similar to groupcache, an ORM similar to gorm and xorm, and an RPC framework based on net/rpc. Each day links to a written explanation and a code folder so you can see how the pieces fit together.
- Read the Gee web framework code day by day to see how routing, context, middleware, and templates are built
- Study the GeeCache code to learn LRU eviction, consistent hashing, and single-flight request deduplication
- Work through the GeeORM days to see how struct-to-table mapping, hooks, transactions, and migrations are implemented
- Run the WebAssembly demos to learn how Go code can manipulate the browser DOM
Great for
- Developers who want to understand how web frameworks, caches, ORMs, or RPC libraries work internally
- Students learning Go who prefer reading and running small, step-by-step code
- Engineers preparing for interviews that cover Go internals
- Readers who already know basic Go syntax and want to practice designing small libraries
Not ideal for
- People who need a production library to use in an app, since these are teaching projects built to show concepts rather than to be used in production
- Complete beginners to programming, because the README assumes familiarity with Go and linking to a separate basics tutorial is recommended
- People looking for a maintained, feature-complete framework with releases, since the README lists no release
How to get it
- 1
Clone and build from source
You'll need: Go (version not specified in the README)
Clone the repository
git clone https://github.com/geektutu/7days-golang - 2
Run it
- Clone the repository with git.
- Open the folder for the part you want, such as gee-web or gee-cache.
- Read the linked day explanation on geektutu.com for that day.
- Open the day's code folder and read or run the example code.
- 3
Get the most out of it
- Read the linked written explanation for each day alongside the matching code folder
- Compare each day's code with the previous day to see exactly what changed
- Start with the Gee web framework, which the README presents first
- Read the recommended Go basics and interview question articles linked in the README if you need background
Downloads
Strengths
- Breaks each system into seven small, sequential steps with a linked explanation and code folder for each
- Covers several distinct areas of backend work (web routing, caching, databases, RPC) in one place
- Available in both English and Chinese versions of the README
Trade-offs
- The README does not state a specific Go version or describe how to run the code, so setup details are unclear from this text
- The projects are educational re-implementations and the README does not claim they are production-ready
- The README is truncated here, so some details about individual days could not be verified
How it compares
| Project | Stars | Type | Level | Updated | Best for |
|---|---|---|---|---|---|
| 7days-golang (this) | 17k | Learning resource | intermediate | 2 months ago | Developers who want to understand how web frameworks, caches, ORMs, or RPC libraries work internally |
| gin | 89.5k | Library | intermediate | 27 days ago | Go developers building REST APIs |
| gorm | 40k | Library | intermediate | 13 days ago | Go developers building web services or APIs that store data in a relational database |
| go-zero | 33.4k | Library | intermediate | 5 days ago | Go developers building REST APIs or microservices |
| night | 12.3k | Learning resource | beginner | 2 months ago | Go developers who want to deepen their understanding of the language and its source code |
| SpringAll | 28.9k | Learning resource | beginner | 2.4 years ago | Developers who read Chinese and want to learn Spring Boot step by step |
Stats synced from GitHub. The assessment above was drafted with AI from the project's README on 2026-10-29 and may miss recent changes — check the README before relying on a command. MIT licence: free to use, modify and distribute, including commercially, as long as you keep the copyright notice.