Examples

cmake --build build --config Debug --target all -- && build/http_echo_awaitable

curl -N -H 'Expect:' -H "Content-Type: text/plain" -v http://localhost:8080/LICENSE -T .
curl -N -H 'Expect:' -H "Content-Type: text/plain" -v http://localhost:8080/LICENSE -T . <LICENSE 
curl -N -H 'Expect:' -H "Content-Type: text/plain" -v http://localhost:8080/LICENSE -T LICENSE
curl -N -H 'Expect:' -H "Content-Type: text/plain" -v http://localhost:8080/LICENSE -T . </dev/zero -o /dev/null
curl -N -H 'Expect:' -H "Content-Type: text/plain" -H Transfer-Encoding: -v http://localhost:8080/LICENSE -T . <LICENSE

(echo -e "PUT / HTTP/1.1\r\n\r\n)|socat - TCP-CONNECT:localhost:8080

./nghttp http://127.0.0.1:8080 --upgrade --verbose

../nghttp2/install/bin/nghttpx -o --frontend='0.0.0.0,8080;no-tls' --backend='eisenlohr.org,80'`

# working HTTP2 upgrade
../nghttp2/install/bin/nghttp -nvu http://nghttp2.org/index.html

upgrade.cpp

Custom server with SSL and HTTP2 detection.

cmake --build build --config Debug --target all -- && build/upgrade

Various clients with TLS, HTTP/1.1 + upgrade and HTTP/2

# https, then ALPN=http/1.1: ok
curl -k https://localhost:8080/LICENSE --http1.1

# https, then ALPN=h2: ok
curl -k https://localhost:8080/LICENSE --http2

# http2 prior knowledge: ok
curl -vk http://localhost:8080/LICENSE --http2-prior-knowledge
../nghttp2/install/bin/nghttp -nv http://localhost:8080/LICENSE

# plaintext with upgrade: FAILS
curl -vk http://localhost:8080/LICENSE --http2
../nghttp2/install/bin/nghttp -nvu http://localhost:8080/LICENSE

httpx