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FastAPI is an Open Source, modern, fast (high-performance), web framework for building APIs with Python 3.6+ based on standard Python type hints.

Simple Poll
Troops
Zapier
Obie.ai
Trello Bot
Zoom.ai
Water Cooler Trivia
Polly. Polly is an advanced loop optimization infrastructure for LLVM, which uses an abstract loop model based on integer sets to analyze and transform the program code. Website: polly. llvm. org .

Which is more popular?
Based on our record, FastAPI seems to be more popular. It has been mentioned 315 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | fastapi.tiangolo.com | launchpad.net |
| Pricing | — | |
| Company | Startup from Colombia | — |
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What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
FastAPI from the ground up
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i SPENT £300 on OH POLLY!🤧 ~ honest review ~ try on haul 💖
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using FastAPI and Polly. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


When our backend team needs to build services for data parsing, aggregators, or high-load APIs, FastAPI is our absolute go-to choice. It completely lives up to its name-development speed is outstanding. The...
FastAPI, as the name hints, is a swift mover. Built on Starlette, it’s all about speed and performance with Python. Crafting API masterpieces at the speed of light, now that’s something.
Since its release in 2018, it has rapidly gained popularity due to its great performance and simplicity. In fact, according to PyPi Stats, FastAPI has over 9 million monthly downloads, surpassing even full-stack...
Polly is a resilient and transient-fault-handling library for .NET. Developers can specify policies such as Retry, Circuit Breaker, Timeout, Bulkhead Isolation, and Fallback in a thread-safe manner.
Polly is a software for conducting surveys and to measure your critical workflows. Polly allows integrating a feedback mechanism in various handy applications such as Slack, Hangouts and Microsoft Teams. Furthermore,...
Recommendations tracked on public social media and blogs since March 2021.


Using FastAPI, FastStream, and dishka lets us follow Clean Architecture principles and almost avoid leaky abstractions. The prototype also used Pydantic and SQLAlchemy. I do not focus on them because these technologies are already... - Source: dev.to / 7 days ago
If your FastAPI app talks to a database through SQLAlchemy, chances are high you will meet it sooner or later. Not on your machine, of course. It shows up in production, after a few quiet hours, under load. And the reflex is always the... - Source: dev.to / 13 days ago
API: FastAPI with async SQLAlchemy, PostgreSQL 17 for data, Redis for caching and rate limits. The cache is invalidated by a single version counter bumped on every write: no fine-grained purging to manage. - Source: dev.to / 21 days ago
Tracking Polly since Mar 2021.
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