fix(SubscriptionNotification): mark transactionId as non-null

CHANGELOG.md

@@ -12,12 +12,22 @@ When we make [non-breaking changes](https://developer.paddle.com/api-reference/a
 
 This means when upgrading minor versions of the SDK, you may notice type errors. You can safely ignore these or fix by adding additional type guards.
 
+## 1.9.1 - 2024-10-16
+
+### Fixed
+
+- Updated `transactionId` in `SubscriptionNotification` to be a non-nullable field.
+
+---
+
 ## 1.9.0 - 2024-10-15
 
 ### Added
 
 - Added the `trafficSource` filter on notification settings
 
+---
+
 ## 1.8.0 - 2024-10-08
 
 ### Added

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@paddle/paddle-node-sdk",
-  "version": "1.9.0",
+  "version": "1.9.1",
   "description": "A Node.js SDK that you can use to integrate Paddle Billing with applications written in server-side JavaScript.",
   "main": "./dist/cjs/index.js",
   "module": "./dist/esm/index.js",

src/notifications/entities/subscription/subscription-notification.ts

@@ -20,7 +20,7 @@ import { type CustomData } from '../../../entities';
 export class SubscriptionNotification {
   public readonly id: string;
   public readonly status: SubscriptionStatus;
-  public readonly transactionId: string | null;
+  public readonly transactionId: string;
   public readonly customerId: string;
   public readonly addressId: string;
   public readonly businessId: string | null;
@@ -45,7 +45,7 @@ export class SubscriptionNotification {
   constructor(subscription: ISubscriptionNotificationResponse) {
     this.id = subscription.id;
     this.status = subscription.status;
-    this.transactionId = subscription.transaction_id ? subscription.transaction_id : null;
+    this.transactionId = subscription.transaction_id;
     this.customerId = subscription.customer_id;
     this.addressId = subscription.address_id;
     this.businessId = subscription.business_id ? subscription.business_id : null;