HTTP Server from TCP

A custom HTTP/1.1 server implementation built using raw TCP sockets in Go, without using the standard library's net/http package.

Features

• HTTP/1.1 request parsing (request line, headers, body)
• Concurrent connection handling
• Custom routing with handler functions
• Support for GET, POST, PUT, DELETE, OPTIONS methods
• Content-Length based body parsing
• Graceful shutdown handling

Project Structure

├── cmd/main.go                # Server entry point
└── internal/
    ├── request/               # HTTP request parsing
    ├── response/              # HTTP response building
    ├── headers/               # Header parsing and handling
    └── server/                # TCP server implementation

Running

go run cmd/main.go

Server runs on port 42069. Test with:

curl localhost:42069
curl localhost:42069/yourproblem  # Returns 400
curl localhost:42069/myproblem    # Returns 500

Testing

go test ./...

Technical Details

• Parses HTTP requests byte-by-byte from TCP streams
• Handles partial reads and buffering
• Validates HTTP/1.1 protocol compliance
• Implements proper CRLF line endings and header formatting

Dependencies

• Standard library only (except testify for tests)
• No net/http usage