Adaptive Paypal

I am trying to use this gem for using the paypal adaptive payments and it calls for the

development:
environment: "sandbox"
username: "sandbox_username"
password: "sandbox_password"
signature: "sandbox_signature"
application_id: "sandbox_app_id"

test:
environment: "sandbox"
username: "sandbox_username"
password: "sandbox_password"
signature: "sandbox_signature"
application_id: "sandbox_app_id"

production:  
environment: "production"
use开发者_高级运维rname: "my_production_username"
password: "my_production_password"
signature: "my_production_signature"
application_id: "my_production_app_id"

but where do i get this information for the sandbox and application_id and signiture and the user/pass info...im sure this is obvious but i dont see it

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Setup an account at The Paypal developer site and register your application. I think that should give you everything you need, for development.

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Yes , You have to create an account at Paypal developer site and for Sandbox environment , you do not need to register your application.As you create an account at developer site ,you have to go at dashboard>>account section and there is an option for create account.After creation of account you got the User name , Password and Signature.