add server to monorepo.

packages/server/src/services/CreditNotes/CreditNoteAutoSerialSubscriber.ts

@@ -0,0 +1,30 @@
+import { Service, Inject } from 'typedi';
+import events from '@/subscribers/events';
+import BaseCreditNotes from './CreditNotes';
+import { ICreditNoteCreatedPayload } from '@/interfaces';
+
+@Service()
+export default class CreditNoteAutoSerialSubscriber {
+  @Inject()
+  creditNotesService: BaseCreditNotes;
+
+  /**
+   * Attaches events with handlers.
+   */
+  public attach(bus) {
+    bus.subscribe(
+      events.creditNote.onCreated,
+      this.autoSerialIncrementOnceCreated
+    );
+  }
+
+  /**
+   * Auto serial increment once credit note created.
+   * @param {ICreditNoteCreatedPayload} payload - 
+   */
+  private autoSerialIncrementOnceCreated = async ({
+    tenantId,
+  }: ICreditNoteCreatedPayload) => {
+    await this.creditNotesService.incrementSerialNumber(tenantId);
+  };
+}