A comprehensive HTTP/1.1 server implementation built from scratch in Go
Demonstrating deep understanding of network protocols, concurrent programming, and system design
This is my first go project done with of the tcp to http course on boot.dev. It is a nice course which gives insight in how to read http standards, work with the tools in go, and does not hold your hand to much troughout the lessons, it justs tells what features to implement, like a set of good issues
The following technical summary was generated with GitHub Copilot to showcase the implementation details of this custom HTTP server project.
Core HTTP Server
| Feature | Description |
|---|---|
| Custom TCP Server | Built on raw TCP connections without using Go's net/http package |
| HTTP/1.1 Protocol Compliance | Full implementation of HTTP request/response parsing and formatting |
| Concurrent Connection Handling | Goroutine-based concurrent client handling |
| Graceful Shutdown | Signal handling for clean server termination |
HTTP Request Processing
- State Machine Parser: Robust HTTP request parser with proper state management
- Request Line Parsing: Method, path, and HTTP version validation
- Header Processing: Case-insensitive header parsing with duplicate header support
- Body Handling: Content-Length based body parsing with buffer management
- Chunked Transfer Encoding: Support for parsing chunked request bodies
HTTP Response Generation
- State-Based Writer: HTTP response writer with enforced write order (status → headers → body)
- Multiple Content Types: Support for HTML, video (MP4), and plain text responses
- Custom Status Codes: Implementation of 200, 400, 404, and 500 responses
- Header Management: Dynamic header generation with proper Content-Length calculation
Advanced HTTP Features
- Chunked Transfer Encoding: Full implementation of chunked response encoding
- HTTP Trailers: Support for trailers after chunked body (SHA-256 hash, content length)
- Proxy Functionality: HTTP proxy implementation with request forwarding
- Content Streaming: Efficient streaming of large responses with configurable chunk sizes
Quality Assurance
- Comprehensive Testing: Unit tests covering request parsing, header handling, and edge cases
- Error Handling: Robust error handling throughout the HTTP pipeline
- Memory Management: Efficient buffer management to prevent memory leaks
- Protocol Validation: Strict adherence to HTTP/1.1 specification
📂 TCPtoHTTP/
├── 📂 cmd/
│ ├── 🌐 httpserver/ # Main HTTP server implementation
│ ├── 👂 tcplistener/ # Basic TCP listener for debugging
│ └── 📡 udpsender/ # UDP client utility
│
├── 📂 internal/
│ ├── 🖥️ server/ # TCP server and connection management
│ ├── 📥 request/ # HTTP request parsing and validation
│ ├── 📤 response/ # HTTP response writing and formatting
│ └── 📋 headers/ # HTTP header processing utilities
│
└── 📂 assets/ # Static files (videos, etc.)
|
|
| Test Type | Implementation |
|---|---|
| 🔧 Unit Tests | Extensive coverage using testify framework |
| 🌐 Network Simulation | Chunk-based reading simulation for network conditions |
| Malformed request and response handling | |
| 🔗 Integration | Testing with real HTTP clients (curl, browsers) |
graph TB
A[🔧 Low-Level Networking] --> B[🌐 HTTP Protocol Mastery]
B --> C[⚡ Concurrent Programming]
C --> D[🏗️ System Architecture]
D --> E[🧪 Testing]
style A fill:#ff6b6b
style B fill:#4ecdc4
style C fill:#45b7d1
style D fill:#96ceb4
style E fill:#feca57
Advanced Go programming concepts: goroutines • channels • interfaces • state machines • low-level network programming
_Built from the ground up without relying on Go's standard `net/http` package_