Async on Manvendra Rajpoot https://blog.rajpoot.dev/tags/async/ Recent content in Async on Manvendra Rajpoot Manvendra Rajpoot https://blog.rajpoot.dev/img/personal/cover.png https://blog.rajpoot.dev/img/personal/cover.png Hugo en Manvendra Rajpoot Sun, 17 May 2026 17:50:46 +0530 Python Cheatsheet 01 — asyncio Essentials https://blog.rajpoot.dev/cheatsheets/python/01-asyncio-essentials-cheatsheet/ Sun, 17 May 2026 06:00:00 +0530 https://blog.rajpoot.dev/cheatsheets/python/01-asyncio-essentials-cheatsheet/ asyncio essentials — event loop, tasks, gather, TaskGroup, timeouts. FastAPI Cheatsheet 06 — Async, Concurrency, and the Threadpool https://blog.rajpoot.dev/cheatsheets/fastapi/06-async-concurrency-cheatsheet/ Mon, 11 May 2026 06:50:00 +0530 https://blog.rajpoot.dev/cheatsheets/fastapi/06-async-concurrency-cheatsheet/ FastAPI async / concurrency cheatsheet — async vs def handlers, threadpool, AnyIO, TaskGroup, blocking traps. SQLAlchemy Cheatsheet 07 — Async Patterns and Streaming https://blog.rajpoot.dev/cheatsheets/sqlalchemy/07-async-patterns-cheatsheet/ Tue, 12 May 2026 07:00:00 +0530 https://blog.rajpoot.dev/cheatsheets/sqlalchemy/07-async-patterns-cheatsheet/ SQLAlchemy 2.0 async cheatsheet — AsyncSession, streaming, awaitable_attrs, run_sync. FastAPI Textbook Ch. 7 — Async, Concurrency, and the Threadpool https://blog.rajpoot.dev/textbooks/fastapi/07-async-concurrency/ Wed, 06 May 2026 07:00:00 +0530 https://blog.rajpoot.dev/textbooks/fastapi/07-async-concurrency/ Chapter 7 — Async in FastAPI: event loop, threadpool, blocking traps, AnyIO, TaskGroup, and concurrency patterns. SQLAlchemy 2.0 Textbook Ch. 8 — Async SQLAlchemy in Depth https://blog.rajpoot.dev/textbooks/sqlalchemy/08-async-deep-dive/ Thu, 07 May 2026 07:10:00 +0530 https://blog.rajpoot.dev/textbooks/sqlalchemy/08-async-deep-dive/ Chapter 8 — Async SQLAlchemy 2.0: AsyncEngine, AsyncSession, async streaming, lazy loading caveats, and FastAPI integration. Django Cheatsheet 10 — Django Async Views https://blog.rajpoot.dev/cheatsheets/django/10-async-views-cheatsheet/ Thu, 21 May 2026 07:30:00 +0530 https://blog.rajpoot.dev/cheatsheets/django/10-async-views-cheatsheet/ Django async views cheatsheet — async views, ORM, middleware. TypeScript Cheatsheet 18 — Async Patterns https://blog.rajpoot.dev/cheatsheets/typescript/18-async-patterns-cheatsheet/ Mon, 18 May 2026 08:50:00 +0530 https://blog.rajpoot.dev/cheatsheets/typescript/18-async-patterns-cheatsheet/ Async TypeScript cheatsheet — Promises, async/await, AbortController, concurrency. Django ORM Async in 2026 — What Works, What Bites, and the Patterns That Stuck https://blog.rajpoot.dev/posts/django/django-orm-async-2026/ Mon, 04 May 2026 08:40:00 +0530 https://blog.rajpoot.dev/posts/django/django-orm-async-2026/ Django ORM async in 2026 — async views, async ORM, transaction handling, and the patterns from production async Django. Rust Async Traits in 2026 — Native AFIT, Send Bounds, and the Patterns That Stuck https://blog.rajpoot.dev/posts/rust/rust-async-traits-2026/ Sun, 03 May 2026 08:30:00 +0530 https://blog.rajpoot.dev/posts/rust/rust-async-traits-2026/ Rust async traits in 2026 — native async fn in traits, Send/Sync bounds, dyn dispatch, and the patterns from production async Rust. Python Async Patterns in 2026 — TaskGroup, asyncio.timeout, and Production Patterns https://blog.rajpoot.dev/posts/python/python-async-patterns-2026/ Sat, 02 May 2026 09:10:00 +0530 https://blog.rajpoot.dev/posts/python/python-async-patterns-2026/ Modern Python async patterns in 2026 — TaskGroup, asyncio.timeout, structured concurrency, anyio, and the patterns that don't leak tasks. Async Python Database Drivers in 2026 — asyncpg, psycopg, and the Choices https://blog.rajpoot.dev/posts/python/python-async-database-drivers-2026/ Thu, 30 Apr 2026 23:50:00 +0530 https://blog.rajpoot.dev/posts/python/python-async-database-drivers-2026/ Async Python database drivers in 2026 — asyncpg vs psycopg async, MySQL options, SQLite (aiosqlite), and which to pick by use case. Debugging asyncio in Production — The Patterns That Find Real Bugs https://blog.rajpoot.dev/posts/python/python-asyncio-debugging-2026/ Thu, 30 Apr 2026 22:30:00 +0530 https://blog.rajpoot.dev/posts/python/python-asyncio-debugging-2026/ Debugging asyncio in production Python in 2026 — task leaks, blocking calls, slow callbacks, and the diagnostics that actually find them. Background Jobs in Python — arq, Dramatiq, Taskiq, and Celery in 2026 https://blog.rajpoot.dev/posts/python/background-jobs-python-arq-dramatiq-taskiq-2026/ Wed, 29 Apr 2026 10:40:00 +0530 https://blog.rajpoot.dev/posts/python/background-jobs-python-arq-dramatiq-taskiq-2026/ Modern Python background job systems compared — arq, Dramatiq, Taskiq, and where Celery still earns its keep. Patterns, retries, scheduling, and how to pick. Modern AsyncIO Patterns in Python — TaskGroup, anyio, and What Changed https://blog.rajpoot.dev/posts/python/asyncio-patterns-taskgroup-anyio-2026/ Tue, 28 Apr 2026 21:10:00 +0530 https://blog.rajpoot.dev/posts/python/asyncio-patterns-taskgroup-anyio-2026/ Modern asyncio patterns in Python 3.11+ — TaskGroup, structured concurrency, exception groups, anyio for portable async, and the patterns that survived the asyncio API churn. Tokio Async Fundamentals — A Backend Engineer's Guide to Rust Async https://blog.rajpoot.dev/posts/rust/tokio-async-fundamentals-backend/ Tue, 28 Apr 2026 17:30:00 +0530 https://blog.rajpoot.dev/posts/rust/tokio-async-fundamentals-backend/ A practical guide to Tokio for backend engineers — futures, the runtime, tasks, channels, select!, cancellation, and the patterns you'll actually use in production Rust services. Production HTTP Service in Rust — Axum 0.8, sqlx, and Postgres https://blog.rajpoot.dev/posts/rust/production-rust-axum-sqlx-postgres/ Tue, 28 Apr 2026 17:20:00 +0530 https://blog.rajpoot.dev/posts/rust/production-rust-axum-sqlx-postgres/ A complete walkthrough of a production-grade Rust HTTP service in 2026 — Axum 0.8 routing, extractors, sqlx for Postgres, error handling, tracing, and the project layout that scales. Django 5 Async — Views, ORM, and Channels in 2026 https://blog.rajpoot.dev/posts/django/django-5-async-views-orm-channels/ Tue, 28 Apr 2026 17:10:00 +0530 https://blog.rajpoot.dev/posts/django/django-5-async-views-orm-channels/ A practical guide to async Django in 2026 — async views, the new async ORM, ASGI deployment, and how Channels fits in for WebSockets and real-time features. FastAPI + Pydantic v2 + SQLAlchemy 2.0 — Production Patterns for 2026 https://blog.rajpoot.dev/posts/fastapi/fastapi-pydantic-v2-sqlalchemy-2-production/ Tue, 28 Apr 2026 17:00:00 +0530 https://blog.rajpoot.dev/posts/fastapi/fastapi-pydantic-v2-sqlalchemy-2-production/ The FastAPI stack worth building on in 2026 — Pydantic v2, async SQLAlchemy 2.0, dependency injection, settings, errors, observability, and the layout that scales past one file. FastAPI + SQLAlchemy + PostgreSQL: A Modern Setup https://blog.rajpoot.dev/posts/fastapi/fastapi-with-sqlalchemy/ Tue, 28 Apr 2026 13:45:00 +0530 https://blog.rajpoot.dev/posts/fastapi/fastapi-with-sqlalchemy/ A practical guide to wiring FastAPI to PostgreSQL with SQLAlchemy 2.0 (async), Alembic migrations, and a sane project structure. A Practical Guide to Python Async/Await https://blog.rajpoot.dev/posts/python/async-await-explained/ Tue, 28 Apr 2026 13:10:00 +0530 https://blog.rajpoot.dev/posts/python/async-await-explained/ The mental model that makes Python's async/await actually click — what it is, what it isn't, when to use it, and the mistakes that quietly ruin async code. Getting Started with FastAPI: Modern Python APIs Done Right https://blog.rajpoot.dev/posts/fastapi/getting-started-with-fastapi/ Tue, 28 Apr 2026 11:00:00 +0530 https://blog.rajpoot.dev/posts/fastapi/getting-started-with-fastapi/ A practical introduction to FastAPI — the async Python framework that gives you type-safe APIs, automatic docs, and great performance with very little ceremony.