send post request using curl code example

Example 1: curl post json

curl -X POST -H "Content-Type: application/json" \
 -d '{"username":"abc","password":"abc"}' \
 https://api.example.com/v2/login

Example 2: curl post request

curl -d "user=user1&pass=abcd" -X POST https://example.com/login

Example 3: curl post json

curl -d '{"key1":"value1", "key2":"value2"}' -H "Content-Type: application/json" -X POST http://localhost:3000/data

Example 4: how to send http post create request using curl command

curl --data "param1=value1" --data "param2=value2" https://example.com/resource.cgi