Create push notification service

Author: Jetlum

config.yaml

@@ -3,4 +3,7 @@ infura:
 database:
   url: "postgresql://username:password@localhost:5432/dbname"
 sendgrid:
-  api_key: "YOUR_SENDGRID_API_KEY"
+  api_key: "YOUR_SENDGRID_API_KEY"
+push_notification:
+  provider: "firebase" # or other provider
+  api_key: "YOUR_PUSH_NOTIFICATION_API_KEY"

services/push_notification.go

@@ -0,0 +1,23 @@
+// services/push_notification.go
+package services
+
+import "github.com/Jetlum/WalletAlertService/models"
+
+type PushNotifier interface {
+	Send(event *models.Event, userPref *models.UserPreference) error
+}
+
+type PushNotification struct {
+	// Firebase or other push service configuration
+}
+
+func NewPushNotification(config Config) *PushNotification {
+	return &PushNotification{
+		// Initialize push service
+	}
+}
+
+func (pn *PushNotification) Send(event *models.Event, userPref *models.UserPreference) error {
+	// Implement push notification sending
+	return nil
+}