What's new and what's next from Google DeepMind? 🤖
Come and find out with @DynamicWebPaige at FastAPI Conf! 🤓
Join us next week, in Amsterdam, on October 28. 🚲
fastapiconf.com
Come and find out with @DynamicWebPaige at FastAPI Conf! 🤓
Join us next week, in Amsterdam, on October 28. 🚲
fastapiconf.com
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Optional parameter models in FastAPI 0.159.0 ✨
No dates? No filter.
Send either date? Both are required.
Make the whole Pydantic model optional while keeping its fields required.
Works with query parameters, headers, and cookies. 🚀
fastapi.tiangolo.com/tutorial/query…
No dates? No filter.
Send either date? Both are required.
Make the whole Pydantic model optional while keeping its fields required.
Works with query parameters, headers, and cookies. 🚀
fastapi.tiangolo.com/tutorial/query…
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Pagination in one model. Filters in another. Both in the same FastAPI endpoint. ✨
FastAPI 0.157.0 lets you combine multiple query parameter models, alongside individual parameters and dependencies.
Works for headers and cookies too. 🚀
fastapi.tiangolo.com/tutorial/query…
FastAPI 0.157.0 lets you combine multiple query parameter models, alongside individual parameters and dependencies.
Works for headers and cookies too. 🚀
fastapi.tiangolo.com/tutorial/query…
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Welcome @polar_sh as a Gold Sponsor of FastAPI Conf! 🎉
Polar handles payments, subscriptions, and sales tax so you can focus on building.
Thank you for being part of the inaugural FastAPI Conf! 🤝
Oct 28, Amsterdam
fastapiconf.com/#supported-by
Polar handles payments, subscriptions, and sales tax so you can focus on building.
Thank you for being part of the inaugural FastAPI Conf! 🤝
Oct 28, Amsterdam
fastapiconf.com/#supported-by
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Welcome @Redisinc as a Gold Sponsor of FastAPI Conf! 🎉
Redis helps developers build fast applications with caching and real-time data.
Thank you for being part of the inaugural FastAPI Conf! 🤓
Oct 28, Amsterdam
fastapiconf.com/#supported-by
Redis helps developers build fast applications with caching and real-time data.
Thank you for being part of the inaugural FastAPI Conf! 🤓
Oct 28, Amsterdam
fastapiconf.com/#supported-by
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Our first Gold Sponsor for FastAPI Conf is @runpod! 🎉
Runpod provides cloud GPUs for training and deploying AI models.
Thank you for being part of the inaugural FastAPI Conference! 🙌
Oct 28, Amsterdam
fastapiconf.com/#supported-by
Runpod provides cloud GPUs for training and deploying AI models.
Thank you for being part of the inaugural FastAPI Conference! 🙌
Oct 28, Amsterdam
fastapiconf.com/#supported-by
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FastAPI now has built-in OpenTelemetry support, natively 📈
No extra code needed.
See how your app behaves in production.
Go and upgrade to "fastapi[standard]" version 0.142.2 ⬆️
Read the docs: fastapi.tiangolo.com/advanced/opent…
No extra code needed.
See how your app behaves in production.
Go and upgrade to "fastapi[standard]" version 0.142.2 ⬆️
Read the docs: fastapi.tiangolo.com/advanced/opent…
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Building AI agents with FastAPI? 🤖
Come and learn from @cailliaup of @Redisinc at FastAPI Conf: streaming LLM responses, shared state, caching, and keeping work running after a client disconnects. 🤓
fastapiconf.com/speakers/#piet…
Come and learn from @cailliaup of @Redisinc at FastAPI Conf: streaming LLM responses, shared state, caching, and keeping work running after a client disconnects. 🤓
fastapiconf.com/speakers/#piet…
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Talk update 🎙️
@fvoron is bringing a new topic to FastAPI Conf 2026:
You don’t need /v2: API Versioning with FastAPI
Come and learn the latest tricks from @polar_sh, including a custom SDK for clients, based on the new FastAPI versioning system 🤖
fastapiconf.com/speakers/#fran…
@fvoron is bringing a new topic to FastAPI Conf 2026:
You don’t need /v2: API Versioning with FastAPI
Come and learn the latest tricks from @polar_sh, including a custom SDK for clients, based on the new FastAPI versioning system 🤖
fastapiconf.com/speakers/#fran…
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Want to learn tips and tricks for building FastAPI apps with AI, directly from @jxnlco on the Codex team at OpenAI? 🤓
Join us at FastAPI Conf in Amsterdam! 🚲
Psst, Sep 20 is the deadline to select your T-shirt size. 👕
fastapiconf.com/speakers/#jaso…
Join us at FastAPI Conf in Amsterdam! 🚲
Psst, Sep 20 is the deadline to select your T-shirt size. 👕
fastapiconf.com/speakers/#jaso…
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What makes FastAPI fast, and how much faster can it get? ⚡
Come and learn from @marcelotryle , maintainer of Starlette and Uvicorn: surprising bottlenecks, Rust and Zig experiments, and what's next. 🤓
Join us at FastAPI Conf!
fastapiconf.com/speakers/#marc…
Come and learn from @marcelotryle , maintainer of Starlette and Uvicorn: surprising bottlenecks, Rust and Zig experiments, and what's next. 🤓
Join us at FastAPI Conf!
fastapiconf.com/speakers/#marc…
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How does FastAPI help deliver NASA's James Webb Space Telescope data around the world? 🔭
Come and learn from @benjamin_falk at FastAPI Conf: FastAPI and the tech stack used at the Space Telescope Science Institute. 🌠
fastapiconf.com/speakers/#ben-…
Come and learn from @benjamin_falk at FastAPI Conf: FastAPI and the tech stack used at the Space Telescope Science Institute. 🌠
fastapiconf.com/speakers/#ben-…
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Pydantic is the data building block of FastAPI. 🏯
In these past years, it became the data building block of AI... and virtually all Python data validation. 🐍
Come and learn directly from @samuelcolvin, the author of @pydantic, how he uses AI to code.
fastapiconf.com/speakers/#samu…
In these past years, it became the data building block of AI... and virtually all Python data validation. 🐍
Come and learn directly from @samuelcolvin, the author of @pydantic, how he uses AI to code.
fastapiconf.com/speakers/#samu…
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Come and learn how typing.Annotated works underneath from @fvoron at FastAPI Conf. 🤓
Learn things you won't learn anywhere else.
Join us in Amsterdam! 🚲️
fastapiconf.com/speakers/#fran…
Learn things you won't learn anywhere else.
Join us in Amsterdam! 🚲️
fastapiconf.com/speakers/#fran…
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The FastAPI full-stack template now comes with @FastAPIcloud ✨
Create your account, set settings, done. It deploys on merge. ⚡️
You can also still self-host it instead, using the guide and following all the steps.
github.com/fastapi/full-s…
Create your account, set settings, done. It deploys on merge. ⚡️
You can also still self-host it instead, using the guide and following all the steps.
github.com/fastapi/full-s…
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At some point recently FastAPI passed 100k followers on LinkedIn 💯
Thank you! 🙌
linkedin.com/company/fastap…
There's also:
X: x.com/fastapi
Bluesky: bsky.app/profile/fastap…
Thank you! 🙌
linkedin.com/company/fastap…
There's also:
X: x.com/fastapi
Bluesky: bsky.app/profile/fastap…
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FastAPI Conf speaker! 📢
@DynamicWebPaige is constantly making sure Google DeepMind AI tools are great for developers. Used to do that at GitHub, TensorFlow, and more. 🤓
Amazing speakers. FastAPI maintainers. An incredible community. Lots of Python.
fastapiconf.com
@DynamicWebPaige is constantly making sure Google DeepMind AI tools are great for developers. Used to do that at GitHub, TensorFlow, and more. 🤓
Amazing speakers. FastAPI maintainers. An incredible community. Lots of Python.
fastapiconf.com
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The full-stack FastAPI template now serves the React - TanStack frontend with FastAPI ✨
One single app, one single deployment, one single domain. No CORS fights and debugging.
github.com/fastapi/full-s…
One single app, one single deployment, one single domain. No CORS fights and debugging.
github.com/fastapi/full-s…
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The FastAPI Full Stack Template now uses React Email for email templates and Mailpit for local email testing! 📬️
Develop emails with React Email, test them locally with Mailpit, generate and commit the templates, and use them from FastAPI as always. ⚡️
github.com/fastapi/full-s…
Develop emails with React Email, test them locally with Mailpit, generate and commit the templates, and use them from FastAPI as always. ⚡️
github.com/fastapi/full-s…
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FastAPI Conf news! 📢
@marcelotryle, maintainer of Starlette and Uvicorn, the web components behind FastAPI, will join us as a speaker in Amsterdam! 🙌
Get your tickets: fastapiconf.com
@marcelotryle, maintainer of Starlette and Uvicorn, the web components behind FastAPI, will join us as a speaker in Amsterdam! 🙌
Get your tickets: fastapiconf.com
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Here's the full-stack-fastapi-template 0.12.0 🎁
More modern, simpler, easier.
Too many improvements to fit here, but let's start:
You can now simply click the "Use this template" button in GitHub to create a new repo, possibly private. ✨
github.com/fastapi/full-s…
More modern, simpler, easier.
Too many improvements to fit here, but let's start:
You can now simply click the "Use this template" button in GitHub to create a new repo, possibly private. ✨
github.com/fastapi/full-s…
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FastAPI Conf speaker news! 📢
@benjamin_falk, FastAPI Expert, has led projects to distribute space science data around the world.
James Webb, The Roman Telescope launched next month, and more. 🔭
Come to see real world advanced FastAPI use cases! 🌠
fastapiconf.com
@benjamin_falk, FastAPI Expert, has led projects to distribute space science data around the world.
James Webb, The Roman Telescope launched next month, and more. 🔭
Come to see real world advanced FastAPI use cases! 🌠
fastapiconf.com
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New FastAPI Conf speaker! 📢
@samuelcolvin, creator and founder of @pydantic ✨
FastAPI is built on top of Pydantic and the two ecosystems are a perfect match. Of course we had to have him! 🤝
Early bird ending soon, got your tickets? fastapiconf.com
@samuelcolvin, creator and founder of @pydantic ✨
FastAPI is built on top of Pydantic and the two ecosystems are a perfect match. Of course we had to have him! 🤝
Early bird ending soon, got your tickets? fastapiconf.com
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FastAPI app.frontend() now supports local development 💻️
fastapi dev: a missing frontend directory only shows a warning 👨🔬
fastapi run: exits with an error instead 🚨
✨ new default check_dir="auto"
✨ new env var FASTAPI_ENV="development"
fastapi.tiangolo.com/tutorial/front…
fastapi dev: a missing frontend directory only shows a warning 👨🔬
fastapi run: exits with an error instead 🚨
✨ new default check_dir="auto"
✨ new env var FASTAPI_ENV="development"
fastapi.tiangolo.com/tutorial/front…
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FastAPI can now serve your frontend app ✨
With support for client-side routing 😎
Great for React with TanStack Router, Astro static builds, Vite-based apps, etc. 🎉
FastAPI version 0.138.0 🔖
fastapi.tiangolo.com/tutorial/front…
With support for client-side routing 😎
Great for React with TanStack Router, Astro static builds, Vite-based apps, etc. 🎉
FastAPI version 0.138.0 🔖
fastapi.tiangolo.com/tutorial/front…
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Can you imagine being there? 🤩
Surrounded by FastAPI developers and maintainers from around the world.
Watching the best FastAPI talks you could ask for 😎
FastAPI Conf will happen at Westergas, in Amsterdam 🌷
Join the waiting list 🎟️
fastapiconf.com
Surrounded by FastAPI developers and maintainers from around the world.
Watching the best FastAPI talks you could ask for 😎
FastAPI Conf will happen at Westergas, in Amsterdam 🌷
Join the waiting list 🎟️
fastapiconf.com
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Have you found the easter egg in the FastAPI Conf website? 🥚
What's your highest score? 🕹️
fastapiconf.com
What's your highest score? 🕹️
fastapiconf.com
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Big news: the first-ever ✨ FastAPI Conf ✨ is coming!
📍 Amsterdam
📅 October 28
Meet the FastAPI team, connect with developers ☕️
🎟️ Join the waitlist for early ticket access: fastapiconf.com
📍 Amsterdam
📅 October 28
Meet the FastAPI team, connect with developers ☕️
🎟️ Join the waitlist for early ticket access: fastapiconf.com
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Now there's autocompletion and docs in pyproject.toml for FastAPI 🎉
[tool.fastapi]
entrypoint = "main:app"
Make sure you have a modern editor and TOML plugin, like @code with @tombi_toml 🤓
[tool.fastapi]
entrypoint = "main:app"
Make sure you have a modern editor and TOML plugin, like @code with @tombi_toml 🤓
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Here's FastAPI 0.135.3, adding support for fully vibe-coded apps ✨
Use the new app.vibe() decorator, embrace the AI future 🤖
Read the new docs: fastapi.tiangolo.com/advanced/vibe/
Use the new app.vibe() decorator, embrace the AI future 🤖
Read the new docs: fastapi.tiangolo.com/advanced/vibe/
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Big features in FastAPI 0.134.0 ✨
🌊 Stream JSON Lines with yield: fastapi.tiangolo.com/tutorial/strea…
🦀 @pydantic serializes each item to JSON (on Rust) for max perf
📦️Stream binary data with yield: fastapi.tiangolo.com/advanced/strea…
🤖 Library Agent Skill updated with this
🥚 Easter egg
🌊 Stream JSON Lines with yield: fastapi.tiangolo.com/tutorial/strea…
🦀 @pydantic serializes each item to JSON (on Rust) for max perf
📦️Stream binary data with yield: fastapi.tiangolo.com/advanced/strea…
🤖 Library Agent Skill updated with this
🥚 Easter egg
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Increase your FastAPI JSON response performance by 2x or more 🚄
1. Upgrade to the just released FastAPI 0.131.0 🎁
2. Declare your response model - return type ✨
With that, now @pydantic handles the JSON serialization on the Rust side 🦀
fastapi.tiangolo.com/advanced/custo…
1. Upgrade to the just released FastAPI 0.131.0 🎁
2. Declare your response model - return type ✨
With that, now @pydantic handles the JSON serialization on the Rust side 🦀
fastapi.tiangolo.com/advanced/custo…
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The full-stack-fastapi-template now uses @shadcn / ui (with @tailwindcss) for the frontend 🚀🎉
There's still dark mode too, and all the nice things 🦇
Thanks @alejsdev ! 🙌
github.com/fastapi/full-s…
There's still dark mode too, and all the nice things 🦇
Thanks @alejsdev ! 🙌
github.com/fastapi/full-s…
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FastAPI 0.124.0 comes with better server error tracebacks. ✨
Before, if the app sent invalid data back, the server error logs would not show where the problem was. 😔
Now it shows the (clickable) file, line, function, and path operation. 📢
Thanks @savostrowski! 🙌
Before, if the app sent invalid data back, the server error logs would not show where the problem was. 😔
Now it shows the (clickable) file, line, function, and path operation. 📢
Thanks @savostrowski! 🙌
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The FastAPI CLI now supports declaring the entrypoint (your app location) in pyproject.toml ✨
Configure there once, and then you can just run:
$ fastapi dev
...without having to pass a file path 😎
Thanks @patrick91! 🙌
Configure there once, and then you can just run:
$ fastapi dev
...without having to pass a file path 😎
Thanks @patrick91! 🙌
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Here's FastAPI 0.119.0 🚀
With support for both @pydantic v2 and v1 on the same app, at the same time 🤯
This is just so you can migrate to Pydantic v2 if you haven't done it yet, here's your (last) chance! 🤓
Pydantic v1 is now deprecated ⛔️
Read more fastapi.tiangolo.com/how-to/migrate…
With support for both @pydantic v2 and v1 on the same app, at the same time 🤯
This is just so you can migrate to Pydantic v2 if you haven't done it yet, here's your (last) chance! 🤓
Pydantic v1 is now deprecated ⛔️
Read more fastapi.tiangolo.com/how-to/migrate…
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Now you can use the entrypoint syntax with the FastAPI CLI 🚀
(fastapi-cli version 0.0.11)
Thanks @patrick91! 🙌
(fastapi-cli version 0.0.11)
Thanks @patrick91! 🙌
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FastAPI is now officially the most used web framework by Python developers 😁🚀🎉
From the Python Developer Survey 🐍
From the Python Developer Survey 🐍
🚀 The State of Python 2025 is here!
Our findings from the #Python Developers Survey done in collab with @ThePSF include:
📊 51% use Python for data
🌐 46% use it for web dev
👨💻 Half of the community is new
🔧 83% still use older Python versions
Check out the takeaways by co/tw433pK1VR 🔗
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"The +5 point increase for FastAPI is one of the most significant shifts in the web framework space."
"This signals a strong trend towards using Python for building performant APIs and reflects the overall strength of the Python ecosystem."
🤯🐍🚀
survey.stackoverflow.co/2025/technolog…
"This signals a strong trend towards using Python for building performant APIs and reflects the overall strength of the Python ecosystem."
🤯🐍🚀
survey.stackoverflow.co/2025/technolog…
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