Curl

Transfer data with all these protocols: DICT, FILE, FTP, FTPS, GOPHER, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, POP3, POP3S, RTMP, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET and TFTP

Post

Basic

curl localhost:4000/api/events -X POST -d '{"event": {"type": "basic"}}' | json_pp

Advanced

curl https://api.mux.com/video/v1/assets \
  -H "Content-Type: application/json" \
  -X POST \
  -d '{ "input": "[URL_TO_VIDEO_ASSET]", "playback_policy": "public" }' \
  -u {MUX_TOKEN_ID}:{MUX_TOKEN_SECRET} | json_pp

json_pp takes json and outputs pretty printed json

curl -I http://google.com #print headers returned

Authorization Header

curl -H 'Accept: application/json' -H "Authorization: Bearer ${TOKEN}" https://api.linkedin.com/v2/me\?projection\=\(id,profilePicture,localizedHeadline,headline,vanityName\) | json_pp

--user, is transformed in basic authorization header so

Authorization: Basic YWxhZGRpbjpvcGVuc2VzYW1l

The text after the Basic keyword is a base64 encoded text string of the username:password combination provided with the --user parameter