Do More with Less Leveraging The Power of Serverless

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DAY 1 “技” Developer Day Do More with Less Leveraging The Power of Serverless Ji Wu ABEJA.Inc

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• Self-introduction • What is serverless? • Why we went serverless? • Serverless at Abeja • Serverless lesson learned • What does serverless mean to Abeja? Contents

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Self-Introduction Ji Wu https://github.com/slashbit • Web Developer @ABEJA, Inc • Interest in building web applications on serverless stacks

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What is serverless?

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What is serverless? • Functions-as-a-Service • Developers ship code • Platforms provide runtime environments in containers

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Function execution model HTTP Request Storage Change Message Queue Database Change Scheduled Event

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Common use cases • Web application • Mobile & IoT back-end • Data processing • Chatbots

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Why we went serverless? Image source: google images

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Why we went serverless? • Load balancing • Auto scaling • OS management • Managing utilization Image source: iloveimg.com • Scales with usage • No servers to provision • Never pay for idle • Availability and fault tolerance

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Serverless at Abeja

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Serverless at Abeja Image source: imgﬂip.com

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It all started with the data

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Here comes the ﬁrst function

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API Gateway opens the door to outside world

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Meanwhile at the front-end

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Find our front-end a home

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Alpha released!

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The 3-tier architecture

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Take care business internally

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Connect the best of both world

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Finish things up with authentication

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Serverless lesson learned • Each function should do only one thing • Functions don't call other functions • Use as few libraries in your functions as possible • Always architect your serverless application around event patterns

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Serverless lesson learned • Be mindful of using reserved concurrency • Keep containers warm • Use frameworks to streamline your development process • Use CI/CD tools

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What does serverless mean to Abeja? • Less code • Less servers • Less expensive • Less time to ship

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After the lecture is over, we are waiting at the Ask the Speaker section of the exhibition area. If you have any questions, please come to this corner after the session ends. See you Ask the Speaker !! ABEJA 17 6 5 4 3 1 2 9 10 11 12 7 8 16 15 ABEJA Ask the Speaker 14 3F Hall ABEJAծ ABEJA Deep Learning ABEJA

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The contents introduced today and the products and services that support the backside of these, We have prepared a booth at the 3F exhibition hall and tell it. Please drop by during the session. GO EXPO 2F 3F Room A Room B Room C Room D Hall ٖؒك٦ة٦ WC ㉀锑 ٕ٦ي ㉀锑 ٕ٦ي ㉀锑 ٕ٦ي ㉀锑 ٕ٦ي Room E ٖؒك٦ة٦ WC ♧菙勻㜥罏「➰ ٝ؟٦ أؙ 闌怴罏「➰ 1F 2F 3F Floor Maps Room A Room B Room C Room D Hall ٖؒك٦ة٦ WC ㉀锑 ٕ٦ي ㉀锑 ٕ٦ي ㉀锑 ٕ٦ي ㉀锑 ٕ٦ي Room E ٖؒك٦ة٦ WC Room W ♧菙勻㜥罏「➰ أهٝ؟٦ رأؙ 闌怴罏「➰ WC ٖؒك٦ة٦ Here

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GO Day2 !! - for Retail Tomorrow will be announced in many sessions how the technology introduced today is actually used by clients. Please come tomorrow by all means

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Please give us feedback on this session if you like ID of this session dev/dev-e-3 Do More with Less Leveraging The Power of Serverless Feedback will be used to develop products and deliver more information https://goo.gl/forms/erEBAsrQK4XKEv352

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Thank you.