TeachMeIDEA
Learn Flutter Dart JavaScript React Native DevOps AI Backend Python with practical tutorials
AWS IAM Roles and Policies Explained
Every API call to AWS is authenticated and authorized through IAM (Identity and Access Management). Understanding AWS IAM roles and...
AWS RDS vs Aurora: When to Choose Which
Both RDS and Aurora are managed relational database services from AWS. Both support PostgreSQL and MySQL. Both handle backups, patching,...
AWS S3 Best Practices: Security, Performance, and Cost
S3 is one of the first AWS services most developers use, and one of the easiest to misconfigure. A public...
AWS for Developers: The Services You Actually Need to Know
AWS offers over 200 services, and navigating that catalog as a developer is overwhelming. Most tutorials either cover a single...
Backend for Frontend (BFF) Pattern in Microservices
When a single API serves both a feature-rich web application and a bandwidth-constrained mobile app, compromises are inevitable. The web...
Hexagonal Architecture (Ports and Adapters) Explained
Most applications start with a straightforward layered architecture: controllers call services, services call repositories, repositories talk to the database. This...
Domain-Driven Design (DDD) Fundamentals for Developers
Most codebases do not fail because of bad algorithms or poor framework choices. They fail because the code does not...
Saga Pattern for Distributed Transactions in Microservices
When a single business operation spans multiple microservices, you lose the safety net of database transactions. A monolith can wrap...
Message Queues Compared: RabbitMQ vs Kafka vs AWS SQS
Message queues decouple producers from consumers, absorb traffic spikes, and enable asynchronous processing — but choosing the wrong one creates...