<commit_before>package events

// registerEventHandlers is the place to add your handlers for different Stripe hooks
import (
	"fmt"

	"github.com/stripe/stripe-go"
	"github.com/stripe/stripe-go/event"
)

type eventHandler func(hook *stripe.Event) (err error)
type validateHandler func(hook *stripe.Event) (event *stripe.Event, err error)

// EventHandlers is a mapping of stripe events to their handleEvent functions
var EventHandlers = make(map[string]eventHandler)

// ValidationHandler is an
var ValidationHandler validateHandler

// RegisterEventHandlers is the place to add your handlers for each
// event type you want to support from Stripe webhooks
func RegisterEventHandlers() {
	// Example handle incoming hook for invoice.payment_succeeded event
	RegisterEventHandler("invoice.payment_succeeded", func(event *stripe.Event) error {
		fmt.Printf("Event %s handled, type %s\n", event.ID, event.Type)
		return nil
	})

	RegisterEventHandler("invoice.payment_failed", func(event *stripe.Event) error {
		// Example, send email to customer
		return nil
	})
}

// RegisterEventHandler adds the handler to the list of handlers
// It will overwrite handler if one exists for event already
func RegisterEventHandler(event string, handleFunc eventHandler) {
	EventHandlers[event] = handleFunc
}

// RegisterValidationHandler allows you to add your validation handler function here
// A typical validation is to call back to Stripe
// and verify and use the event that check returns.
//
// If you want no validation with Stripe, then just use the original event data e.g.
// validationHandler = func(hook *stripe.Event) (*stripe.Event, error) {
//      return &stripe.Event{
//          Data: &hook.Data,<commit_msg>Show how to safely get data our of the map returned by Stripe<commit_after>package events

// registerEventHandlers is the place to add your handlers for different Stripe hooks
import (
	"errors"
	"fmt"

	"github.com/stripe/stripe-go"
	"github.com/stripe/stripe-go/event"
)

type eventHandler func(hook *stripe.Event) (err error)
type validateHandler func(hook *stripe.Event) (event *stripe.Event, err error)

// EventHandlers is a mapping of stripe events to their handleEvent functions
var EventHandlers = make(map[string]eventHandler)

// ValidationHandler is an
var ValidationHandler validateHandler

// RegisterEventHandlers is the place to add your handlers for each
// event type you want to support from Stripe webhooks
func RegisterEventHandlers() {
	// Example handle incoming hook for invoice.payment_succeeded event
	// Shows how to get the data safely out of the map[string]interface{}
	RegisterEventHandler("invoice.payment_succeeded", func(event *stripe.Event) error {
		customer, ok := event.Data.Obj["customer"]
		if !ok {
			return errors.New("Could not find customer in event")
		}
		customer, ok = customer.(string)
		if !ok {
			return errors.New("Customer field was not expected type")
		}

		fmt.Printf("Event %s handled, type %s for customer %s\n", event.ID, event.Type, customer)
		return nil
	})

	RegisterEventHandler("invoice.payment_failed", func(event *stripe.Event) error {
		// Example, send email to customer
		return nil
	})
}

// RegisterEventHandler adds the handler to the list of handlers
// It will overwrite handler if one exists for event already
func RegisterEventHandler(event string, handleFunc eventHandler) {
	EventHandlers[event] = handleFunc
}

// RegisterValidationHandler allows you to add your validation handler function here
// A typical validation is to call back to Stripe
// and verify and use the event that check returns.
//
// If you want no validation with Stripe, then just use the original event data e.g.
// validationHandler = func(hook *stripe.Event) (*stripe.Event, error) {
//      return &stripe.Event{
//          Data: &hook.Data,
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