Using Event.get() in webhook listener

[theyuv]

Using Event.get() in webhook listener

[prakash-gangadharan]

Hi @theyuv, what is the webhook event you are listening to? can you help here with the sample payload which you are using.

[theyuv]

Example Webhook Event:
PAYMENT.SALE.PENDING

Example payload:
{
  "id": "***",
  "create_time": "2015-05-11T21:45:15Z",
  "resource_type": "sale",
  "event_type": "PAYMENT.SALE.PENDING",
  "summary": "Payment pending for EUR 3.76 EUR",
  "resource": {
    "reason_code": "RECEIVING_PREFERENCE_MANDATES_MANUAL_ACTION",
    "parent_payment": "PAY-13V79659LS5126423KVISFPI",
    "update_time": "2015-05-11T21:44:29Z",
    "amount": {
      "total": "3.76",
      "currency": "EUR"
    },
    "payment_mode": "INSTANT_TRANSFER",
    "create_time": "2015-05-11T21:44:29Z",
    "protection_eligibility": "INELIGIBLE",
    "links": [
      {
        "href": "https://api.paypal.com/v1/payments/sale/11139561TK568332L",
        "rel": "self",
        "method": "GET"
      },
      {
        "href": "https://api.paypal.com/v1/payments/sale/11139561TK568332L/refund",
        "rel": "refund",
        "method": "POST"
      },
      {
        "href": "https://api.paypal.com/v1/payments/payment/PAY-13V79659LS5126423KVISFPI",
        "rel": "parent_payment",
        "method": "GET"
      }
    ],
    "id": "11139561TK568332L",
    "state": "pending"
  },
  "links": [
    {
      "href": "https://api.paypal.com/v1/notifications/webhooks-events/***",
      "rel": "self",
      "method": "GET",
      "encType": "application/json"
    },
    {
      "href": "https://api.paypal.com/v1/notifications/webhooks-events/***/resend",
      "rel": "resend",
      "method": "POST",
      "encType": "application/json"
    }
  ],
  "event_version": "1.0"
}

[prakash-gangadharan]

@theyuv, can you help us with the code snippet you are using?

[theyuv]

JsonObject eventJson = 
                new JsonParser().parse(requestAsString).getAsJsonObject();
Event event = Event.get(apiContext, eventJson.get("id).getString());
Sale sale = (Sale) event.getResource();

Is this enough?
Again, my questions are:

1. Do I need to parse the json in order to get the event id, so that I can call Event.get()?
2. Why doesn't parsing the resource to a Sale Object work?

[jeffcjohnson]

I am also trying to figure out how to extract the resource from the event and found this:
https://stackoverflow.com/a/34122115

I tested it and it worked:

This is Kotlin but same same:

fun parsePaypalWebhookEventJson(eventJson: String): Event {
	return gson.fromJson(eventJson, Event::class.java)
}

fun parsePaypalWebhookResource(event: Event): PayPalResource? {
	val resource = event.resource as LinkedTreeMap<*, *>
	return when (event.resourceType) {
		"Agreement" -> gson.fromJson(gson.toJson(resource), Agreement::class.java)
		// "Dispute" -> gson.fromJson(gson.toJson(resource), Dispute::class.java)
		else -> null
	}
}

I commented out the Dispute part because I couldn't find it in my class path and assumed I must have an old library but no, I'm using the latest 1.14.0 which is from 2017.

Is this an open source project run by volunteers or run by PayPal employees, the same PayPal worth $126B?