% curl, http

# send a get http request
curl <url>

# send a http request
curl -X <method> <url>

# send a http request and write the output to a file
curl -X <method> <url> -o <filename>

# send a get http request and follow redirects
curl -L <url>

# send a get http request exit with a non-zero status code on failure
curl --fail <url>

# send an authenticated http request
curl -u <username>:<password> -X <method> <url>

# send a http request with a json body
curl -X <method> <url>  -H 'Content-Type: application/json' -d '<json>'

# send a http request with a form body
curl <url> -d <bodykey>=<bodyvalue>

# send a http request and see the request as well as the response
curl -v <url>

# send a http request with a body from a file
curl -X <method> <url> --data-binary "@<file>"

# send a http request with a custom header
curl -X <method> <url> -H "<headername>: <headervalue>"

$ file: ls
$ method: echo -e 'GET\nPOST\nPUT\nDELETE\nPATCH'