Posts

All the articles I've posted.

• Advanced Data Patterns — Column Transformers, Audit Columns & Shared Libraries

  14 May, 2026

  Add reusable TypeORM column transformers (lowercase, slug), wire up createdBy/updatedBy audit columns via a request-scoped TypeORM subscriber, build a running number service for ordered sequences, and extract shared config into libs/core for multi-app monorepo reuse.

• Queues & Real-time

  13 May, 2026

  By the end of this part, you will learn about async queues, Bull, Redis, GraphQL Subscriptions and when to use.

• Testing - Unit + E2E

  12 May, 2026

  By the end of this part, you will learn the enterprise testing philosophy, Unit tests, mock TypeORM correctly, E2E tests and run tests in CI.

• Case Study 2 - Todo Module (FK + Auth + DataLoader)

  11 May, 2026

  By the end of this part, you will be building a module with a foreign key to another entity (Todo → User) and learn about solving N+1 problem with DataLoader.