fcm send message

fcm

msg := &messaging.Message{
	APNS: &messaging.APNSConfig{
		Headers: map[string]string{
			"apns-priority": "10",
		},
		Payload: &messaging.APNSPayload{
			Aps: &messaging.Aps{
				Alert: &messaging.ApsAlert{
					Title: category,
					Body:  body,
				},
				// Badge: &badge,
			},

			// question: do I put the payload here? 
			CustomData: map[string]interface{}{
				"type":      "mention",
				"commentId": "1",
				"picture":   "https://cdn.woodstock.club/logo.png",
				"name":      "min",
				"comment":   "you are cool",
			},
		},
	},

	
	// question: or here? 
	Data: map[string]string{
		"type":      "mention",
		"commentId": "1",
		"picture":   "https://cdn.woodstock.club/logo.png",
		"name":      "min",
		"comment":   "you are cool",
	},
	
	Token: device.DeviceID,
}

_, err := fcmClient.Send(context.Background(), msg)