Tag: api

Generate interactive API docs from OpenAPI specs using Swagger UI, Redoc, and native tools in Python, JavaScript, and Java.

Set up thorough request/response logging and audit trails for APIs with structured output, correlation IDs, and compliance considerations.

Protect APIs from abuse and ensure fair resource usage with token bucket, sliding window, and leaky bucket rate limiting.

Protect APIs from abuse using token bucket and sliding window algorithms with Redis, including burst handling, distributed coordination, and custom headers for client feedback

How to version REST and GraphQL APIs to maintain backward compatibility while evolving your interface.

How to make HTTP requests to a REST API and handle the JSON response in multiple languages.

Implement efficient cursor-based pagination for large datasets in PostgreSQL, avoiding OFFSET performance degradation with indexed keyset pagination and stable sort ordering

Build maintainable Express applications using middleware composition patterns for authentication, validation, error handling, request context propagation, and async route wrappers

Build production-ready REST APIs in Go using the Gin framework with custom middleware for logging, authentication, validation, and error handling

Build a production-ready GraphQL API with type-safe schemas, resolvers, and query optimization in Python, JavaScript, and Java.

How to build a production-ready GraphQL API using Apollo Server, TypeScript, and DataLoader to solve the N+1 query problem

How to implement a gRPC API using Protocol Buffers for high-performance service-to-service communication

Build high-performance, strongly-typed services using gRPC with Protocol Buffers, covering unary calls, server streaming, client streaming, and bidirectional streaming

How to configure Cross-Origin Resource Sharing (CORS) headers correctly for APIs, SPAs, and serverless functions without opening security holes.

Patterns for consistent, predictable API error handling across multiple languages and frameworks.

How to design and implement idempotent API endpoints that safely handle retries, duplicate requests, and network failures without side effects.

How to validate user input safely using schemas, type checking, and sanitization across Python, JavaScript, and Java.

How to implement structured, level-based logging across Python, JavaScript, and Java with what works for production observability.

How to implement request/response middleware for logging, auth, and error handling across Python, JavaScript, and Java.

How to use Nginx as a reverse proxy for backend services, implement load balancing, SSL termination, and rate limiting for production API gateways

How to implement cursor-based and offset-based pagination in APIs and databases across Python, JavaScript, and SQL.

How to implement API rate limiting using token bucket, sliding window, and fixed window algorithms across Python, JavaScript, and Java.

Implement a real-time notification system using WebSockets and Redis pub/sub for broadcasting messages across clients.

Design reliable, scalable REST APIs with proper HTTP methods, status codes, versioning, and pagination strategies.

How to send transactional and bulk emails securely using SMTP with template support.

How to implement one-way real-time streaming from server to browser using Server-Sent Events, with reconnection, event types, and multi-client broadcasting.

How to build a production-ready Server-Sent Events endpoint in Go with connection management, heartbeat pings, and graceful client disconnect handling

Implement real-time server-to-client push using Server-Sent Events in Node.js with Express, covering connection management, event types, reconnection logic, and backpressure handling

How to create and consume webhook endpoints for real-time event-driven integrations.

How to authenticate WebSocket connections, implement token validation, and handle authorization for real-time messaging in production

How to build a real-time bidirectional chat application using WebSocket with room-based messaging, presence tracking, and message persistence

How to build a WebSocket server for bidirectional real-time communication, with connection management, message broadcasting, and heartbeat keepalive.

Implement a distributed token bucket rate limiter using Redis atomic operations for API throttling across multiple server instances

Define custom GraphQL scalars for Date, Email, URL, and JSON fields with serialization, parsing, and validation logic

Implement Relay-style cursor pagination in GraphQL with edges, nodes, and pageInfo for efficient forward and backward traversal

Monitor API performance and health with Prometheus metrics, custom collectors, and alerting rules.

How to write and run load tests with k6 to measure API performance, validate SLOs, and identify bottlenecks before production deployment

Secure API requests with HMAC-SHA256 signatures to ensure integrity and authenticity.

How to test Express.js REST API endpoints end-to-end using supertest, including status codes, JSON bodies, headers, authentication, and error handling.

How to create dedicated backends per client type. Covers BFF for web, mobile, and desktop. Covers API aggregation, client-specific optimization, and GraphQL BFF.

Use the Adapter pattern to normalize responses from external REST APIs into a consistent internal model without leaking third-party formats into your domain

Create dedicated backend services tailored to the specific needs of each frontend client type, aggregating downstream APIs and optimizing data shapes per platform.

Provide a simplified interface to a complex subsystem. A structural pattern that hides implementation details behind a clean API.

How to use contract testing to verify that API producers and consumers agree on request and response shapes. Covers Pact consumer-driven contracts and provider verification.

A template for documenting API changes including breaking changes, new features, deprecations, and bug fixes.

A template for communicating API deprecations, breaking changes, and sunset timelines to consumers.

A guideline for standardizing error responses, status codes, and error payloads across REST and GraphQL APIs.

A template for defining API rate limits per consumer tier, including burst allowances, quota periods, and escalation paths.

A checklist template for API deprecation, versioning, and sunset procedures.

A template for defining API SLA thresholds, error rate alerts, and monitoring dashboards.

A template for setting and tracking API latency and throughput performance budgets.

A template for defining service contracts and API agreements between microservices.

A template for documenting UI component APIs: props, events, slots, methods, accessibility, and usage examples with TypeScript types.

A checklist template for reviewing API authentication, rate limiting, and OWASP compliance.

A reusable template for documenting REST and GraphQL APIs with endpoints, schemas, errors, and examples.

A reusable template for consistent, informative, and developer-friendly API error responses that reduce debugging time.

A template for a public API status page that communicates uptime, incidents, and maintenance windows to consumers.

A template for planning contract tests, integration tests, and load tests for APIs.

Master the OpenAI API in production. Covers chat completions, streaming, function calling, structured outputs, embeddings, fine-tuning, batch API, assistants API, rate limits, error handling, and cost optimization patterns.

Build unified GraphQL APIs across multiple services with Apollo Federation. Covers subgraphs, supergraph composition, entity resolution, and gateway deployment.

A thorough guide to designing clean, scalable, and maintainable REST APIs.

A decision guide comparing GraphQL and REST APIs: use cases, performance, caching, tooling, and migration strategies for engineering teams.

A thorough security checklist for APIs: authentication, authorization, input validation, rate limiting, encryption, logging, and deployment hardening.

Master CORS security: same-origin policy, CORS headers, preflight requests, credential handling, common misconfigurations, and production security patterns for web APIs.

A developer-focused guide to the OWASP Top 10: injection, broken access control, XSS, insecure design, and how to prevent each vulnerability with code examples.

A practical guide to securing webhooks: signature verification, replay attack prevention, payload encryption, and endpoint hardening for reliable delivery.