as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
create 3 sample http requests to add a new user to a database.
user
request 1:
post /user http/1.1 
host: example.com
content-type: application/json
{
  "username": "newuser_123", 
  "email": "newuser_123@example.com",
  "password": "pa$$w0rd"
}

request 2:
put /user http/1.1 
host: example.com
content-type: application/json
{
  "username": "newuser_123", 
  "email": "newuser_123@example.com",
  "password": "pa$$w0rd"
}

request 3:
post /user/add http/1.1 
host: example.com
content-type: application/json
{
  "username": "newuser_123", 
  "email": "newuser_123@example.com",
  "password": "pa$$w0rd"
}
assistant