MirahLabs Engineering Blog
Technical insights, tutorials, and architectures written by our design and backend engineers.
Automated Database Migrations in CI/CD Pipelines
Running schema migrations reliably in automated pipelines requires careful ordering and rollback strategies. This guide covers Alembic, Flyway, and migration safety patterns.
Event-Driven Architecture with Apache Kafka: Patterns and Pitfalls
Kafka enables high-throughput event streaming for decoupled microservices. Learn producer/consumer patterns, consumer groups, schema evolution, and how to avoid the most common EDA mistakes.
Monitoring Flask Applications with Prometheus and Grafana
Learn how to instrument a Flask application with Prometheus metrics, build a Grafana dashboard, and set up alerting rules that notify your team before users notice problems.
FastAPI Dependency Injection: Design Patterns for Clean Architecture
Dependency Injection in FastAPI is a core feature. Learn how to manage database sessions, security credentials, and mock external service classes in tests.
Saga Orchestration vs. Choreography in Distributed Transactions
Distributed microservices cannot rely on database locks. Learn how Saga patterns coordinate multi-step transactions using Orchestration or Choreography workflows.
Unit Testing Python Code with Pytest: Fixtures, Mocking, and Parametrization
Upgrade your testing workflows. Explore how Pytest's advanced features—fixtures, parameter matrix testing, and mock objects—speed up test execution.