Examples

One focused program per file, written for readability. They build with the default configure (COFETCH_BUILD_EXAMPLES=ON) and hit public echo endpoints, so they need network access to run.

example	shows
example_hello.cpp	the smallest program: one GET, one callback
example_fluent.cpp	building a POST with the chainable setters
example_coroutine.cpp	dependent requests in linear code (C++20 co_await)
example_future.cpp	std::future style: start, drive, get()
example_sync.cpp	wrapping the async client in a blocking SyncClient facade
example_concurrent.cpp	20 requests in flight on one thread
example_errors.cpp	transport errors vs HTTP error statuses
example_cancellation.cpp	a time budget per request with asio::cancel_after
example_redirects.cpp	3xx as-is by default; follow_redirects() to chase them
example_http2.cpp	requests multiplexed over one HTTP/2 connection; opting a request back to HTTP/1.1
example_tls.cpp	https out of the box; TLS knobs via the .curl() escape hatch
example_compression.cpp	gzip/brotli responses arrive already decoded
example_keepalive.cpp	connection pooling: the second request skips the handshake
example_reactors.cpp	run() vs busy-poll() vs a foreign epoll loop; io_uring build