Emarsys

pkg/provider/emarsys.

Typed GA4 events for Emarsys marketing automation.

Event names

Constant	Wire name
EventNameEmarsysCart	emarsys_cart
EventNameEmarsysCategory	emarsys_category
EventNameEmarsysPurchase	emarsys_purchase
EventNameEmarsysView	emarsys_view

Event constructors

Each lives in pkg/provider/emarsys/event/:

import (
	emarsysevent "github.com/foomo/sesamy-go/pkg/provider/emarsys/event"
	"github.com/foomo/sesamy-go/pkg/provider/emarsys/event/params"
	sesamyparams "github.com/foomo/sesamy-go/pkg/event/params"
)

// Cart
ev := emarsysevent.NewEmarsysCart(params.EmarsysCart[sesamyparams.Item]{
	Items: []sesamyparams.Item{ /* ... */ },
})

// Category
evC := emarsysevent.NewEmarsysCategory(params.EmarsysCategory{Category: "shoes/boots"})

// Purchase
evP := emarsysevent.NewEmarsysPurchase(params.EmarsysPurchase[sesamyparams.Item]{
	TransactionID: "T-123",
	Items: []sesamyparams.Item{ /* ... */ },
})

// View
evV := emarsysevent.NewEmarsysView(params.EmarsysView[sesamyparams.Item]{
	Items: []sesamyparams.Item{ /* ... */ },
})

All four return sesamy.Event[P] and can be projected to Event[any] via .AnyEvent() for transport.

Params

pkg/provider/emarsys/event/params defines the typed param structs. They are generic over an Item type so that you can reuse sesamyparams.Item (the canonical GA4 item) or supply your own enriched item shape.

Reacting to inbound Emarsys events

Inside a cross-protocol EventHandler:

func handle(l *zap.Logger, r *http.Request, e *sesamy.Event[any]) error {
	switch e.Name {
	case emarsysevent.EventNameEmarsysPurchase:
		var p params.EmarsysPurchase[sesamyparams.Item]
		if err := e.DecodeParams(&p); err != nil {
			return err
		}
		// forward p to Emarsys' Web Behavior API ...
	}
	return nil
}