从条带webhook事件中检索条带数据

问题描述

在java中实现条带webhook时，我成功地以JSON格式获取事件对象。问题是我无法获得嵌套JSON中的amount，subscription_id，属性等详细信息。从类对象获取这些值也不可用。你能否告诉我如何提取这些值

When implementing stripe webhook in java, I am successful in getting the event object in JSON format. The problem is I am not able to get the details like the amount, subscription_id, attributes which are in nested JSON. Getting these values from the class object is also not available. Could you please tell me how to extract these values

public void handle(HttpServletRequest request) {

    Stripe.apiKey = sk_test_XXXXXXXXXXXXXXXXXXXX;

    String rawJson = "";

    try {
            rawJson = IOUtils.toString(request.getInputStream());
        }
        catch (IOException ex) {
            System.out.println("Error extracting json value : " + ex.getMessage());
         }
    Event event = APIResource.GSON.fromJson(rawJson, Event.class);
    System.out.println("Webhook event : " + event);

}

我收到以下回复： -

And I get the following response :-

Webhook event : <com.stripe.model.Event@1462134034 id=evt_18qdEBElSMaq70BZlEwdDJG3> JSON: {
  "id": "evt_18qdEBElSMaq70BZlEwdDJG3",
  "api_version": "2016-07-06",
  "created": 1473143919,
  "data": {
    "object": {
      "id": "in_18qcFkElSMaq70BZy1US7o3g",
      "amount_due": 4100,
      "application_fee": null,
      "attempt_count": 1,
      "attempted": true,
      "charge": "ch_18qdEBElSMaq70BZIEQvJTPe",
      "closed": true,
      "created": null,
      "currency": "usd",
      "customer": "cus_95uFN7q2HzHN7j",
      "date": 1473140172,
      "description": null,
      "discount": null,
      "ending_balance": 0,
      "forgiven": false,
      "lines": {
        "data": [
          {
            "id": "sub_95uFmJLQM3jFwP",
            "amount": 4100,
            "currency": "usd",
            "description": null,
            "discountable": true,
            "livemode": false,
            "metadata": {},
            "period": {
              "end": 1473226524,
              "start": 1473140124
            },
            "plan": {
              "id": "aug 19 01",
              "amount": 4100,
              "created": 1472448923,
              "currency": "usd",
              "interval": "day",
              "interval_count": 1,
              "livemode": false,
              "metadata": {},
              "name": "Aug 19 plan. Better than paypal",
              "statement_descriptor": null,
              "trial_period_days": null,
              "statement_description": null
            },
            "proration": false,
            "quantity": 1,
            "subscription": null,
            "type": "subscription"
          }
        ],
        "total_count": 1,
        "has_more": false,
        "request_options": null,
        "request_params": null,
        "url": "/v1/invoices/in_18qcFkElSMaq70BZy1US7o3g/lines",
        "count": null
      },
      "livemode": false,
      "metadata": {},
      "next_payment_attempt": null,
      "paid": true,
      "period_end": 1473140124,
      "period_start": 1473053724,
      "receipt_number": null,
      "starting_balance": 0,
      "statement_descriptor": null,
      "subscription": "sub_95uFmJLQM3jFwP",
      "subscription_proration_date": null,
      "subtotal": 4100,
      "tax": null,
      "tax_percent": null,
      "total": 4100,
      "webhooks_delivered_at": 1473140184
    },
    "previous_attributes": null
  },
  "livemode": false,
  "pending_webhooks": 1,
  "request": null,
  "type": "invoice.payment_succeeded",
  "user_id": null
}

我想获得像 customer_id ， subscription_id 这样的值，但是当我尝试使用事件对象获取数据时，我不能简单地按 event.get .... 进行操作。我如何提取数据。

I want to get the values like the customer_id, subscription_id , etc. But when I try to get the data using the event object, I couldn't simply do as event.get.... . How would I extract the data.

推荐答案

我解决了这个问题。真正的问题是我无法检索对象ID ，在我的情况下是 invoiceid （in_18qcFkElSMaq70BZy1US7o3g）。此id是发生事件的ID。这意味着如果它是付款成功事件，则对象ID 将是费用ID 。我必须将事件对象转换为 map ，然后获取所需的属性。下面是我为解决问题所做的完整代码片段。

Well I had solved this problem. The real issue was that I was not able to retrive the object id, in my case the invoiceid (in_18qcFkElSMaq70BZy1US7o3g). This id is the id for the event occured. Meaning if it is a payment successful event, then the object id will be the charge id . I had to convert the event object to map then get the required attribute. Below is the complete code snippet of what I had done to solve the problem.

public void handle(HttpServletRequest request) {

    Stripe.apiKey = sk_test_XXXXXXXXXXXXXXXXXXXX;

    String rawJson = "";

    try {
         rawJson = IOUtils.toString(request.getInputStream());
    }
    catch (IOException ex) {
       System.out.println("Error extracting json value : " + ex.getMessage());
    }

    Event event = APIResource.GSON.fromJson(rawJson, Event.class);
    System.out.println("Webhook event : " + event);

    // Converting event object to map
    ObjectMapper m = new ObjectMapper();
    @SuppressWarnings("unchecked")
    Map<String, Object> props = m.convertValue(event.getData(), Map.class);

    // Getting required data
    Object dataMap = props.get("object");

    @SuppressWarnings("unchecked")
    Map<String, String> objectMapper = m.convertValue(dataMap, Map.class);

    String invoiceId = objectMapper.get("id");

    System.out.println("invoideId : " + invoiceId);
}

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