Articles tagged "fastapi"

opentelemetry python distributed-tracing observability fastapi
11 min readIntermediate

OpenTelemetry Python Tutorial 2026: Distributed Tracing, Custom Spans, and Context Propagation

OpenTelemetry Python tutorial 2026: auto-instrument FastAPI with OTel SDK, create custom spans, propagate trace context across microservices, export to Jaeger or any OTLP backend. Production-ready tracing patterns.

signoz opentelemetry python observability distributed-tracing
8 min readIntermediate

SigNoz and OpenTelemetry Python 2026: Self-Host Distributed Tracing and Logs (Datadog Alternative)

SigNoz tutorial 2026: install SigNoz with Docker Compose, auto-instrument a FastAPI app with OpenTelemetry, view traces and logs in one UI, and cut observability costs vs Datadog. Step-by-step with Python.

vibe-coding claude-code ai llm saas
9 min readIntermediate

Vibe Coding 2026: Build a SaaS with Claude Code Without Writing Most of the Code

Vibe coding tutorial 2026: use Claude Code to build a real SaaS MVP — FastAPI backend, React frontend, Stripe payments, and Postgres — in hours instead of days. Includes prompt engineering tips and when to intervene manually.

ai claude vibe-coding saas python
18 min readIntermediate

Vibe Coding a SaaS with Claude Code 2026: From Idea to Production

Learn vibe coding in 2026 — AI-assisted development where 46% of code is AI-generated. Build a real SaaS product with Claude Code: architecture decisions, iteration workflow, quality control, and production deployment.

python fastapi postgresql jwt docker
17 min readIntermediate

FastAPI Tutorial 2026: Build a Production REST API with PostgreSQL, JWT Auth, and Docker

FastAPI tutorial 2026: build a production REST API with async PostgreSQL (SQLAlchemy 2.0), JWT authentication, Pydantic v2 validation, Alembic migrations, and Docker Compose deployment.

python pydantic dataclasses validation fastapi
13 min readIntermediate

Python Dataclasses vs Pydantic v2: Which to Use in 2026 (With Benchmarks)

Python dataclasses vs Pydantic v2 in 2026: feature comparison, performance benchmarks (Pydantic v2 is 5-50x faster than v1), migration guide from Pydantic v1, and decision guide by use case.

python decorators functools design-patterns fastapi
16 min readIntermediate

Python Decorators Tutorial 2026: 8 Production Patterns from Retry to Auth

Python decorators tutorial 2026: mechanics, functools.wraps, class-based decorators, and 8 production patterns — retry with backoff, TTL cache, rate limiter, type validator, deprecation, singleton, and FastAPI auth.

python fastapi api postgresql
3 min readIntermediate

FastAPI Tutorial 2026: Build a REST API with PostgreSQL, Auth, and Async

FastAPI tutorial 2026: build a production REST API with PostgreSQL, JWT authentication, and async endpoints. Complete guide with Pydantic models, testing, and Uvicorn deployment.