====== curl ======
===== Basic Usage =====
<code>
curl https://www.google.com
</code>

===== Use It Without Proxy =====
<code>
curl --noproxy "*" https://www.google.com
</code>

===== Verbose =====
Add -v or --verbose to the command. It will list out more information for your HTTP connection
<code>-v, --verbose       Make the operation more talkative</code>

===== POST =====
Connect to a local server with username and password. (Should use HTTPS for production site)
<code>
curl --noproxy "*" -v  http://127.0.0.1:8080/authenticate -d "username=username&password=password"
</code>

===== POST with JSON=====
Connect to a local server with username and password. (Should use HTTPS for production site). Note that for WINDOWS platform, single quote is not supported.

<code>
For Windows:
curl --noproxy "*" -v -H "Content-Type: application/json"  http://127.0.0.1:8080/authenticate -d "{\"username\":\"username\", \"password\": \"password\"}"

For Other platform:
curl --noproxy "*" -v -H "Content-Type: application/json"  http://127.0.0.1:8080/authenticate -d '{"username": "username", "password": "password"}'

</code>


===== Adding Something in the HTTP header =====
This could be user for JWT, header authentication.
<code>
curl http://127.0.0.1:8080/ -H "Something: anything"
</code>

===== Connect to Self-signed SSL Site =====
add -k, or --insecure to the command.
<code>-k, --insecure      Allow insecure server connections when using SSL</code>

===== Follow the URL =====
curl will not automatically redirect to a site like the browser does. In order to do it, add -L, or --location in the command
<code>-L, --location      Follow redirects</code>