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Building a Robust Backend: A Comprehensive Guide Using NestJS, TypeORM, and Microservices

Let’s embark on a comprehensive journey to create a highly efficient backend using the robust capabilities of NestJS, the versatility of TypeORM, and the efficiency of microservices. Dive deep into managing the GitHub branch system for optimal results, integrating RabbitMQ for seamless email management, deploying on Digital Ocean servers, and automating deployment processes with GitHub actions. Let’s ensure you get the most out of your backend development experience. The base project that we will develop here will be Gmail email sync system, somewhat like outlook application but in API format.

Series Outline

1. NestJS, TypeORM, and Postgres DB: Jumpstart your journey by setting up a NestJS project integrated with TypeORM and Postgres DB.
2. Mastering Environment Variables in NestJS: Implement environments to segregate and manage sensitive information as per the deployment scenario.
3. Building a Robust API: Structuring Controllers, Entities, DTOs, and Modules: Delve into user dynamics by defining DTOs, entities, and transformers ensuring data integrity and security.
4. Mastering Database Migrations in NestJS: Leverage datasources and migrations to maintain and adapt your DB structure over time.
5. Crafting a Persistent Gmail Sync with NestJS and OAuth2: Setting up a Gmail synchronization system using NestJS and OAuth2, focusing on creating a secure, testable environment and handling token refreshes for sustained access.
6. A Comprehensive Guide to Building Gmail Mail Synchronization Functions in NestJS: Setting up functions to help in synchronizing Gmail Email account with local DB.
7. Implementing Trash Management in Gmail with NestJS and TypeORM: Managing emails in a Gmail sync system using NestJS and TypeORM, focusing on adding functionality to move emails to and from the trash.
8. Implementing Read/Unread Status in Gmail with NestJS and TypeORM: Updating email status to read/un-read as per user request.
9. Implementing Gmail Email Attachment Download feature with NestJS and TypeORM: Downloading attachments in emails through provided properties in email sync response.
10. Implementing the Send Email Feature with Attachments feature using NestJS and TypeORM: Sending files as attachments with email service
11. Securing Email Synchronization in NestJS: Implementing Dynamic Authentication Strategies in Gmail Sync System: Add authentication strategies for JWT and local auth guards
12. Securing Email Synchronization in NestJS: Implementing Users module in NestJS: Added users module with respective repo, controller and service methods
13. Securing Email Synchronization in NestJS: Implementing Email Service: Add email service to verify users accounts and later use in authentication
14. Securing Email Synchronization in NestJS: Finalizing authentication and authorization: Last story in series, completing authentication and authorization implementation in code

Note: The flow of this series is a tentative roadmap. The sequence and content may evolve based on updates and feedback.

Feedback & Collaboration

“Being critical isn’t the same as being disrespectful.” ― A.D. Aliwat, In Limbo

Open channels of communication are key. If you’ve got feedback, an alternative approach, or believe there’s room for improvement in any segment, your insights are invaluable. Reach out and let’s enhance this journey together.