Python Web Frameworks in the Age of Microservices

twitter: @MislavCimpersak
github: github.com/mislavcimpersak

Old Faithful

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Django

- The first one is Django. - I'm not going to talk a lot about Django since I'm betting that most of you, if not all have worked on a Django based project in their lifetime. - It's stable, it's mature, it's got a large and strong community, it's excellent for prototyping your idea real fast, - but also proven in the wild to be able to handle even huge deployments. - It's the framework you will use for your project when you want to get it running in minimum time. - But often, in later phases, your Django monolith is the first thing on the chopping block. - Because... it's slow. - Framework overhead is just huge. - For a microservice, you can turn off a lot of things you aren't using, like various middlewares and such, but you'll never get stellar speeds.

Flask

Road Less Traveled

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Bottle

Falcon

bare-metal Python web API framework for building high-performance microservices, app backends, and higher-level frameworks
py2.6 / py3.6 / pypy2 / pypy3
Rackspace, OpenStack, Opera Software, Linkedin, Wargaming

Falcon

Hug

Hopefully Useful Guide
version management
type annotation powered validation
Falcon ❤ Hug
~ docs

- This represents the project's goal to help guide developers into creating well written and intuitive APIs. - Hug makes it easy to expose multiple versions of your API. You can simply specify which version or range of versions an endpoint supports and then automatically have that enforced and communicated to your API's users. - Hug leverages Python 3 type annotations to enable simple per argument validation and transformation. This leads to explicit and easy to follow endpoints. - Even though Falcon and Hug are separate projects, there are some tests in Falcon's repo that make sure they don't break Hug. - As much is Falcon uopinionated, Hug is. - And that's a good thing. - To get a service up and running really, really fast, it's perfect. - As simple as Flask or Bottle and also in some ways more explicit. - And also faster. - Unfortunately, the docs are a mixed bag. - They cover Hug specific problems, but since Hug is built upon Falcon you often end up going to Falcon's docs.

Hug

Sanic

Flask-like Python 3.5+ web server that's written to go fast
async - uvloop
blueprints
class-based views
...

Sanic

API Star

🌟

- The newest player in town is API Star created by Tom Christie of Django Rest Framework fame. - It's standalone framework but that can use Django's ORM or SQLAlchemy. - I had the good fortune of being on the last DjangoCon when Tom Christie announced API Star. - There were a lot of mixed feelings there. - From people saying: "This is the best thing since sliced bread" to "Is _Rest Framework_ now dead?" - Well, both were wrong. - Christie is working on both and that is a good thing and a bad thing. - It's good that he's still working on _Rest Framework_ since it's such an integral part of Django today. - But it's a bad thing that he's still working on _Rest Framework_ since API Star is sometimes neglected. - I tried doing something with back in spring and then later it in the summer, and it was _kind of_ broken. - Things worked, but I've scratched the surface just a bit and tried to do something just a bit above tutorial and I get errors from the package itself.

API Star

wsgi or async
json schema generation
typesystem for validation
~ templating
~ authentication
testing using py.test

Roundup

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	stable	docs	speed	async*	py2	mascot
Django	👌	👌	👎	👎	⛔ ^**	😊
Flask	👍	👍	🤞	👎	✅	😑
Bottle	🤞	👍	👍	👎	✅	😑
Falcon	👍	👍	👌	👎	✅	😲
Hug	🤞	👎	👌	👍	⛔	😍
Sanic	🤞	👍	👍	👍	⛔	derp
API Star	🖕	👍	👍	👍	⛔	🤔

* out of the box
** not since 2.0 👏

Q & A

mislavcimpersak.github.io/python-microservices-frameworks-talk

Python Web Frameworks in the Age of Microservices

Old Faithful

Django

Flask

Road Less Traveled

Bottle

Bottle

Falcon

Falcon

Falcon

Hug

Hug

Hug

Hug

Sanic

Sanic

Sanic

API Star

🌟

API Star

API Star

API Star

API Star

Roundup

Q & A

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