Simple C++ HTTP Server

A minimal, POSIX-socket-based HTTP/1.1 server written in C++.
Supports basic routing, static file serving from a specified directory, and file upload via POST.

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Features

• GET /
  Returns a 200 OK with an empty body.

• GET /echo/{text}
  Returns 200 OK with a plain-text body of {text}.

• GET /user-agent
  Returns 200 OK with your User-Agent header value.

• GET /files/{filename}
  Serves the file named {filename} from a user-specified directory (via --directory).

  • If the file exists:

    HTTP/1.1 200 OK
    Content-Type: application/octet-stream
    Content-Length: <size>
    
    <raw file bytes>

  • If not found, returns 404 Not Found.

• POST /files/{filename}
  Creates or overwrites {filename} in the same directory, writing the raw request body.

  • On success:

    HTTP/1.1 201 Created
    Content-Length: 0

  • On failure, returns 404 Not Found or 500 Internal Server Error as appropriate.

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Requirements

• Linux, macOS, or any POSIX-compatible OS
• A C++17-compatible compiler (e.g. g++, clang++)

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Building

git clone https://github.com/<your-username>/simple-cpp-http-server.git
cd simple-cpp-http-server

# Build:
g++ -std=c++17 -pthread -o http-server src/server.cpp