Serverless is the new black – I can deploy my application to the cloud without ever worrying about infrastructure. We all remember the days when we had to spend hours and hours configuring and ebugging web servers when all we wanted was to just code and test our app. Those days are long gone and it’s time for us to unlearn how to provision and manage infrastructure while focusing on building and scaling applications.

1. Hop on the server
less adventure
Simona Cotin

2. Simona Cotin
Cloud Dev Advocate @ Microsoft
@simona_cotin

3. @simona_cotin
WHAT IS
SERVERLESS?

4. @simona_cotin–Martin Fowler
“Serverless architectures refer to
applications that significantly
depend on third-party services
(known as Backend as a Service
or "BaaS") or on custom code
that's run in ephemeral
containers (Function as a Service
or "FaaS")”

5. @simona_cotin
Codepen by awesome @sarah_edo
https://t.co/PvqK1M2Pwz

6. @simona_cotin
•Reacts to events
•Autoscales
•‘Pay as you go’

7. @simona_cotinhttp://serverlesscalc.com/

8. @simona_cotin
Photo by Charlotte Coneybeer on Unsplash

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Photo by Uroš Jovičić on Unsplash
Execution time limit

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Functions are stateless

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Cold start

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“Serverless computing has made
its way into the enterprise because
it simplifies deployment and
allows developers to focus more
on application features than on
tasks such as provisioning VMs.
Emerging uses for serverless
technology include image
processing, task management,
workflows and notifications.”

13. @simona_cotin
Because
it’s
awesome!
Why Node.js?

14. @simona_cotin
•Javascript has a rich
ecosystem of libraries
and tools
•Enable FE developers to
build scalable backends
•Large use base -
javascript is the English
of languages
Why Node.js?

15. @simona_cotin
•Lightweight - helps reduce
cold start
•Commonly run in a
distributed, horizontally
scaled fashion
•Scripting means no
compilation required to
start from a portal
•Runs equally easy on most
OS’s
Why Node.js?

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Serverless providers
•Azure Functions
•Amazon Lambda
•Google Cloud Functions
•Auth0 Webtask
•Ibm Openwhisk

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What can I do
with serverless?

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Hello world

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Timer
Run background tasks

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Web hook

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Web API
Implement CRUD operations

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Web API

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Web API
Pluralsight course with
John Papa
https://aka.ms/pbp
GitHub repo
https://aka.ms/pbp-serverless

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Data processing

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Data processing
Demo by Sarah Drasner
(follow her on Twitter!!)
Article: https://css-tricks.com/
exploring-data-with-serverless-
and-vue-part-i/

27. @simona_cotin
How do I get started?

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Create function - portal

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31. @simona_cotin
Local debugging -
prerequisites
•Node v8.0+
◦ Older versions of node will be
supported soon.
•.NET Core 2.0
•Azure Core Function Tools 2.0
npm install --global azure-functions-core-
tools@core

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Local debugging

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Create function - cli

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Create function - cli

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Publish function

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Publish function

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Git deployment

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Git deployment

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Git deployment - setup

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Git deployment - setup

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–https://aka.ms/serverless-demos

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• Event driven code
• Autoscales
• Only pay for what you’re using/Pay as you go

45. @simona_cotin
Resources
• https://github.com/anaibol/awesome-serverless
• https://aka.ms/functions
• https://github.com/simonaco/pbp-serverless
• https://css-tricks.com/exploring-data-with-serverless-
and-vue-part-i/
• https://github.com/simonaco/property-suggester

46. @simona_cotin
– https://london.serverlessdays.io/

47. @simona_cotin
–Joe Emison
“the thing that distinguishes
the best, fastest, most
efficient engineering
organizations is how little
code they actually write”