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Backend Engineering

Rate limiting, caching strategies, health checks, graceful degradation, and server design.

49 guides
01

API Gateway Patterns: The Front Door to Your Microservices

Design API gateways that handle routing, authentication, rate limiting, and observability without becoming a bottleneck or a single point of failure. Covers gateway architectures, protocol translation, request transformation, circuit breaking, and the deployment patterns that keep your gateway fast and reliable.

02

Caching Strategies: Serving Data at the Speed of Memory

Implement caching that reduces latency from hundreds of milliseconds to single-digit milliseconds. Covers cache placement, invalidation strategies, cache-aside vs write-through patterns, distributed caching with Redis, CDN caching, and the pitfalls that turn your cache into a source of stale data and subtle bugs.

03

Database Migration Strategies: Changing Schemas Without Breaking Production

Migrate database schemas safely in production without downtime, data loss, or broken deployments. Covers expand-and-contract, backward-compatible migrations, zero-downtime techniques, rollback strategies, data migration patterns, and the deployment workflow that lets you change your schema while traffic is flowing.

04

Message Queue Architecture

Design reliable message-driven systems using queues and event streaming. Covers queue selection, delivery guarantees, dead letter handling, consumer patterns, and production monitoring.

05

Authentication and Session Management

Implement secure authentication and session management in backend services. Covers JWT vs. sessions, OAuth2 flows, token lifecycle, session storage, and security hardening.

06

Database Connection Pooling Strategies

Production database connection pooling. Covers pool sizing formulas, PgBouncer, connection lifecycle, pool exhaustion diagnosis, and serverless connection patterns.

07

Distributed Tracing: Following Requests Across Service Boundaries

Implement distributed tracing to debug latency, identify bottlenecks, and understand request flow across microservices. Covers OpenTelemetry, trace propagation, span design, sampling strategies, and integrating traces with logs and metrics for full observability.

08

Graceful Shutdown: Draining Connections Without Dropping Requests

Implement graceful shutdown patterns that let your services restart, deploy, and scale without dropping in-flight requests. Covers signal handling, connection draining, health check coordination, Kubernetes preStop hooks, and timeout strategies for zero-downtime deployments.

09

API Versioning Strategies

Choose and implement an API versioning strategy that lets you evolve your API without breaking existing clients. Covers URI versioning, header versioning, content negotiation, sunset policies, and migration tooling.

10

Connection Pooling and Resource Management

Design connection pools that maximize throughput without exhausting database connections, file handles, or memory. Covers pool sizing formulas, health checks, leak detection, and the configuration that prevents your connection pool from becoming your bottleneck.

11

Background Job Processing

Design reliable background job systems that handle retries, priorities, rate limiting, and failure recovery. Covers job queue architectures, idempotency, dead letter queues, and the patterns that prevent your background jobs from losing work or running twice.

12

Rate Limiting and Throttling Patterns

Implement rate limiting that protects your APIs from abuse without degrading legitimate traffic. Covers token bucket, sliding window, distributed rate limiting, client-specific quotas, and graceful degradation strategies.

13

Event Sourcing and CQRS

Implement event sourcing to capture every state change as an immutable event, and CQRS to optimize read and write paths independently. Covers event store design, projections, snapshots, and when these patterns create more problems than they solve.

14

CQRS Pattern

Separate read and write models for optimized query and command paths. Covers CQRS architecture, event sourcing integration, read model projections, eventual consistency trade-offs, and when CQRS is worth the complexity.

15

API Versioning Strategies and Patterns

Version APIs without breaking consumers. Covers URI versioning, header versioning, content negotiation, deprecation workflows, backward compatibility patterns, and the trade-offs that determine the right versioning strategy.

16

GraphQL Architecture

Design production GraphQL APIs that scale. Covers schema design, resolvers, N+1 problem, DataLoader, subscriptions, federation, caching, and the patterns that make GraphQL fast and maintainable.

17

Distributed Caching Patterns

Design caching strategies that reduce latency, lower database load, and scale horizontally. Covers cache-aside, read-through, write-behind, cache invalidation, distributed cache topologies, and the patterns that make caching reliable in production.

18

gRPC Architecture

Build high-performance microservice communication with gRPC. Covers Protocol Buffers, service definitions, streaming patterns, error handling, load balancing, and the patterns that make gRPC the standard for internal service communication.

19

API Rate Limiting Patterns

Protect backend services from abuse and overload with rate limiting. Covers token bucket, sliding window, distributed rate limiting, client-specific limits, and the patterns that keep your API available under any traffic pattern.

20

Backend Health Check Patterns

Implement comprehensive health checks for production services. Covers liveness vs. readiness probes, dependency health, deep health checks, health check aggregation, and the patterns that let orchestrators and load balancers make intelligent routing decisions.

21

WebSocket Architecture

Build real-time applications with WebSocket connections. Covers connection lifecycle, scaling WebSockets, heartbeat management, reconnection strategies, message protocols, and the patterns that enable real-time features like chat, notifications, and live updates.

22

Backend Idempotency Patterns

Design APIs that can be safely retried without side effects. Covers idempotency keys, at-most-once delivery, deduplication strategies, and the patterns that prevent duplicate charges, duplicate emails, and double-counted metrics in distributed systems.

23

Queue-Based Load Leveling Architecture

Production-ready guide covering queue-based load leveling architecture with implementation patterns, code examples, and anti-patterns for enterprise engineering teams.

24

Rate Limiting and API Throttling: Protecting Services at Scale

Implementation patterns for rate limiting and API throttling — covering algorithms, distributed rate limiting, quota management, and graceful degradation.

25

Request Rate Limiting with Token Bucket Algorithm

Production-ready guide covering request rate limiting with token bucket algorithm with implementation patterns, code examples, and anti-patterns for enterprise engineering teams.

26

Api Documentation Automation

Production engineering guide for api documentation automation covering patterns, implementation strategies, and operational best practices.

27

Api Pagination Patterns

Production engineering guide for api pagination patterns covering patterns, implementation strategies, and operational best practices.

28

Api Rate Limiting Impl

Production engineering guide for api rate limiting impl covering patterns, implementation strategies, and operational best practices.

29

Cdc Change Data Capture

Production engineering guide for cdc change data capture covering patterns, implementation strategies, and operational best practices.

30

Connection Pooling Deep Dive

Production engineering guide for connection pooling deep dive covering patterns, implementation strategies, and operational best practices.

31

Data Serialization

Production engineering guide for data serialization covering patterns, implementation strategies, and operational best practices.

32

Database Connection Management

Production engineering guide for database connection management covering patterns, implementation strategies, and operational best practices.

33

Distributed Locking

Production engineering guide for distributed locking covering patterns, implementation strategies, and operational best practices.

34

Error Handling Strategies

Production engineering guide for error handling strategies covering patterns, implementation strategies, and operational best practices.

35

Graceful Shutdown

Production engineering guide for graceful shutdown covering patterns, implementation strategies, and operational best practices.

36

Graphql Federation Patterns

Production engineering guide for graphql federation patterns covering patterns, implementation strategies, and operational best practices.

37

Grpc Best Practices

Production engineering guide for grpc best practices covering patterns, implementation strategies, and operational best practices.

38

Outbox Pattern

Production engineering guide for outbox pattern covering patterns, implementation strategies, and operational best practices.

39

Request Coalescing

Production engineering guide for request coalescing covering patterns, implementation strategies, and operational best practices.

40

Structured Logging

Production engineering guide for structured logging covering patterns, implementation strategies, and operational best practices.

41

Websocket Scaling

Production engineering guide for websocket scaling covering patterns, implementation strategies, and operational best practices.

42

Api Pagination Strategies

Production-grade guide to api pagination strategies covering architecture patterns, implementation strategies, testing approaches, and operational best practices for enterprise engineering teams.

43

Graphql Server Patterns

Production-grade guide to graphql server patterns covering architecture patterns, implementation strategies, testing approaches, and operational best practices for enterprise engineering teams.

44

Grpc Service Design

Production-grade guide to grpc service design covering architecture patterns, implementation strategies, testing approaches, and operational best practices for enterprise engineering teams.

45

Rate Limiting Algorithms

Production-grade guide to rate limiting algorithms covering architecture patterns, implementation strategies, testing approaches, and operational best practices for enterprise engineering teams.

46

Request Validation Patterns

Production-grade guide to request validation patterns covering architecture patterns, implementation strategies, testing approaches, and operational best practices for enterprise engineering teams.

47

Server Sent Events Architecture

Production-grade guide to server sent events architecture covering architecture patterns, implementation strategies, testing approaches, and operational best practices for enterprise engineering teams.

48

Webhook Delivery Patterns

Production-grade guide to webhook delivery patterns covering architecture patterns, implementation strategies, testing approaches, and operational best practices for enterprise engineering teams.

49

Websocket Scaling Guide

Production-grade guide to websocket scaling guide covering architecture patterns, implementation strategies, testing approaches, and operational best practices for enterprise engineering teams.