same event twice

spec.rb

require 'rails_helper'

RSpec.describe ExternalEvents::FinixPlatformController, type: :controller do
  let!(:business) { create(:business) }
  let!(:business_customer) { create(:business_customer, business: business) }
  let!(:checkout) { create(:checkout, business: business, business_customer: business_customer) }
  let!(:payment_intent) { create(:payment_intent, :with_charge, checkout: checkout, business: business, business_customer: business_customer) }
  let!(:charge) { payment_intent.charges.first }
  
  let(:succeeded_event_type) { "SUCCEEDED" }

  describe "POST #create" do
    before do
      assert(Platform::Payments::Interface.get_charge(charge_id: charge.id)[:status] == "created")
    end

    it "can send the same event twice, should not be an error" do
      event = new_event(succeeded_event_type, true)

      post :create, params: { business_id: business.id }, body: event.to_json, format: :json
      expect(response).to have_http_status(:success)

      post :create, params: { business_id: business.id }, body: event.to_json, format: :json
      expect(response).to have_http_status(:success)
      
      # only 1 event created in our system
      expect(ExternalEvent.count).to eq(1)
    end
  end

  def new_event(state, og)
    {
      "id": "event_4LYWNwHMAZqQ8cNVvnm5hM",
      "system_generated_idempotency_id": "4LYWNwHMAZqQ8cNVvnm5hM",
      "type": "updated",
      "entity": "transfer",
      "occurred_at": "2025-04-01T14:36:04.716203351",
      "_embedded": {
        "transfers": [
          {
            "fee_profile": "FPmtT4MYmiAs1qjLjneQmk4d",
            "fee": 0,
            "operation_key": "CARD_NOT_PRESENT_SALE",
            "receipt_last_printed_at": nil,
            "destination": nil,
            "created_at": "2025-04-01T14:35:32.66Z",
            "additional_purchase_data": nil,
            "failure_message": nil,
            "source": "PIjpPbry73qKXSzpytuAddCx",
            "type": "DEBIT",
            "additional_buyer_charges": nil,
            "statement_descriptor": "FLX*FLEX",
            "additional_healthcare_data": nil,
            "updated_at": "2025-04-01T14:36:04.27Z",
            "subtype": "API",
            "amount_requested": 2500,
            "parent_transfer_trace_id": nil,
            "currency": "USD",
            "id": "TRiV47cH8FTYW6AkU9HPp55c",
            "state": state,
            "split_transfers": [],
            "parent_transfer": og ? nil : 'TRABC',
            "idempotency_id": charge.charge_id,
            "amount": 2500,
            "failure_code": nil,
            "trace_id": "8fae6fea-fb5e-450c-b0d1-5645e149ca26",
            "address_verification": nil,
            "security_code_verification": nil,
            "merchant": "MUd3YsPpEp6HRXUXhL8xu3xV",
            "raw": nil,
            "merchant_identity": "IDowzvCieHhiP7NVKoufYftS",
            "tags": og ? { "charge_id": charge.charge_id} : {},
            "ready_to_settle_at": "2025-04-02T14:36:04.33Z",
            "application": "AP3HhpJDxXLQaoF8LGA15UeT",
            "supplemental_fee": nil,
            "externally_funded": "UNKNOWN",
            "messages": [],
            "tip_amount": nil
          }
        ]
      }
    }
  end
end