Building Serverless Applications

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Building Serverless Applications with NodeJS with @DavidWells

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I'm @DavidWells FullStack JavaScript Developer serverless.com

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Agenda • Overview of Serverless Architectures • Use Cases • Real World Examples • Demo(s) • Q & A

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Serverwhat?

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Serverless

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No Servers?

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AWS Lambda IBM OpenWhisk Microsoft Azure Functions Google Cloud Functions

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How did we get here?

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Sam Kroonenburg & Peter Sbarski  vimeo.com/182082411

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use cases

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Everything

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Everything*

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• DevOps/Infrastructure Automation • Auditing resources for security • Infrastructure events • S3 - new ﬁles, updated ﬁles etc • DynamoDB - new items in DB • Alexa skills • IoT events • Bots (Chat/Voice) • Web + Mobile backend APIs • Form processing • Image processing • Web scraping / testing • Running binaries • Serving HTML / dynamic binaries • Webhook listeners • Cron jobs

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What can't serverless do? • Processes running longer than 5 minutes

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Some Examples

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serverless.com/blog/building-a-serverless-screenshot-service-with-lambda

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• Static Site built with phenomic.io served up from a CDN • React SPA experience on load • Functions for: • Form processing • 404 tracking/Analytics • Protected API calls for authed users • Serving up dynamic routes HTML AKA will scale without living a ﬁnger

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Protect API Example auth0-serverless-protected-routes-demo.surge.sh

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github.com/serverless/examples

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Finding More Use Cases and Examples

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• Nordstrom • Coca-Cola • Autodesk • Angie’s List • Vevo • Booz Allen Hamilton • NY Life Insurance • Australian Government • LendingTree • Amazon • Vice • Accenture • And more Enterprise Users Nordstrom - is a framework contributor and user. They have 200 Lambda functions in production and do 100 million invocations daily. Use-Cases: Web back-ends, DevOps automation & streaming data processing. Coca Cola - is a framework contributor and user. Has a mission to do all of its 200+ marketing projects a year as “serverless” projects with the Framework. Use-Cases: Web and mobile back-ends. “The Serverless Framework is a core component of The Coca-Cola Company's initiative to reduce IT operational costs and deploy services faster.” - Patrick Brandt, Solutions Architect, Coca-Cola

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Serverless State of the union re:Invent 2016 https://www.youtube.com/watch?v=AcGv3qUrRC4

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Enterprise Examples • Accenture (and other agencies) using it to build large backends that can be handed over to the client ready-to-scale • Coca Cola using it to build dozens of marketing sites that handle very spiky traffic • Survata is using it to process hundreds of millions of events and drop cookies • Nordstrom: serverless with artillery and you get serverless-artillery for instant, cheap, and easy performance testing at scale. • Netflix is using for parrallel processing for encoding media files and for security/auditing • A cloud guru: serverless driven training site.

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Scope the github status board

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Github webhook listener

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API for UI

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Lets deploy an inﬁnitely scalable API endpoint Shall we?

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Where to start?

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Where to start? • serverless.com/framework/docs • github.com/serverless/examples • github.com/serverless/scope • github.com/serverless/serverless • gitter.im/serverless/serverless • forum.serverless.com