package main

import (
    "fmt"
    "os"
    gocardless "github.com/epigos/gocardless-go"
)

func main() {
    token := os.Getenv("GOCARDLESS_ACCESS_TOKEN")
    client := gocardless.NewClient(token, gocardless.SandboxEnvironment)
    
    // get customers
    res, err := client.GetCustomers()
    for _, c := range res.Customers {
        fmt.Println(c)
    }
}