Learning Functional Programming in Go

Attempting to charge before decrypting credit card number and authentication

We start by building our pipeline of functions: Charge,Decrypt and Authenticate.

func main() {
       pipeline := BuildPipeline(Charge{}, Decrypt{}, Authenticate{})

The following is the output:

order: &{10001 false alice,secret 7b/HWvtIB9a16AYk+Yv6WWwer3GFbxpjoR+GO9iHIYY= 0922 [{Apples 1 4.50} {Oranges 4 12.00}]}
order: &{10002 false bob,secret EOc3kF/OmxY+dRCaYRrey8h24QoGzVU0/T2QKVCHb1Q= 0123 [{Milk 2 8.00} {Sugar 1 2.25} {Salt 3 3.75}]}
2017/03/08 04:58:27 Error: Error: Unable to charge order Id: 10001
2017/03/08 04:58:27 Error: Error: Unable to charge order Id: 10002
2017/03/08 04:58:27 Close Pipeline