http2-client

HTTP/2 Client using Coroutines. This project is for my personal exploration of performing asynchronous I/O using C++20-style coroutines.

Build

Install the following dependencies:

• C++20 compiler
• CMake 3.12.0+
• Boost 1.81.0+
• OpenSSL
• nghttp2

or use the following command to install dependencies using Conda:

conda env create -f environment.yml

Build the project:

./make.sh

Run

build/http2-client -h
build/http2-client -L "https://nghttp2.org" -m "GET" -v

Notes

Set environment variable SSLKEYLOGFILE to path of a file to TLS master secrets logging. This is useful for debugging TLS connections using Wireshark.

References

• nghttp2: HTTP/2 C Library and tools
• nghttp2-asio: A C++ asio-based HTTP/2 client/server library (original inspiration for this project)
• Boost.Asio: Boost Asynchronous I/O library