development:
  username: p_api1.paypal.com
  password: your_password
  signature: your_signature
  url: sandbox
  action: https://www.sandbox.paypal.com/cgi-bin/webscr
test:
  username: p_api1.paypal.com
  password: your_password
  signature: your_signature
  url: sandbox
  action: https://www.sandbox.paypal.com/cgi-bin/webscr
staging:
  username: p_api1.paypal.com
  password: your_password
  signature: your_signature
  url: sandbox
  action: https://www.sandbox.paypal.com/cgi-bin/webscr
production:
  username: "username"
  password: "password"
  signature: "signature"
  url: production
  action: https://wwwpaypal.com/cgi-bin/webscr