Serverless Microservices with AWS Lambda and API Gateway

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SERVERLESS MICROSERVICES By AlexTamoykin.com

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ALEX TAMOYKIN Co-Founder, CTO @ Shuttle Finance Founder, CTO @ The Right Balance Formerly: ATV/Dreamworks, Victorious, Zestﬁnance

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AGENDA WHY WHAT HOW

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WHY

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DEALING WITH SERVERS TAKES TIME

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SCALING SERVERS IS HARD AND EXPENSIVE

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MONOLITH DOESN’T SCALE

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WHAT SERVERLESS MICRO SERVICES

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DEPLOYMENT EVOLUTION PHYSICAL SERVERS VIRTUALIZATION FUNCTIONS

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SERVERLESS - NO SERVERS TO MANAGE - AUTOSCALING OUT OF THE BOX - PAY PER REQUEST TIME

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MICROSERVICES MONOLITH

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SERVERLESS MICROSERVICES The best of both words

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HOW

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CREATE A LAMBDA HANDLER module.exports.hello = (event, context, callback) => { const response = { statusCode: 200, body: JSON.stringify({ message: 'Yay', input: event, }), }; callback(null, response); };

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LAMBDA TRIGGER

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TEMPLATIZE IT WITH SERVERLESS FRAMEWORK https://serverless.com

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SERVERLESS.YML functions: hello: handler: handler.hello events: - http: path: hello method: get

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$ SERVERLESS DEPLOY

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SERVERLESS MICROSERVICES HTTP S3 SNS SNS DynamoDB RDS SES

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SERVERLESS GOTCHAS ➤ FUNCTION EXECUTION IS CAPPED AT 5 MINUTES. ➤ FUNCTIONS CAN’T HOLD STATE. ➤ WARM UP TIMES. ➤ DEPLOYMENT PACKAGE LIMITS. ➤ TRY / CATCH EXCEPTIONS YOURSELF.

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ITERATE AND INNOVATE

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THANKS Blog: https://AlexTamoykin.com LinkedIn: https://www.linkedin.com/in/alextamoykin/ Twitter: https://twitter.com/fsproru