This talk is about my journey building a serverless backend, the problems we encountered and how we solved them. Along the way, I'll demo those solutions live, so that by the end we'll have the makings of a professional-grade service. My hope is that by the end of this talk, you'll have gotten a taste for what serverless is and why one would choose to use it, and have an idea for the pitfalls you might encounter along the way. Unfortunately, SlideShare doesn't support embedded videos, so the full demo will not be viewable

1. Building a Serverless Backend

4. Jacob Meacham
Director of Engineering, ClassPass
VP Engineering, Doppler Labs

5. Serverless is a MINDSET

6. Serverless is COMPUTE + BUILDING BLOCKS

8. Why Did We Go Serverless?
“The enemy of art is the absence of limitations”
- Orson Welles

9. Cognito
Audio Data CollectionGeotemporal
Engine
Deep Learning
Logs Analytics
Kinesis

10. How do we
Deploy, Monitor, & Debug?

11. How do we
Deploy, Monitor, & Debug?
Standard DevOps
rules don’t apply

12. How do we
Deploy, Monitor, & Debug?
Normal tools don’t work
out of the box
Standard DevOps
rules don’t apply

13. How do we
Deploy, Monitor, & Debug?
Normal tools don’t work
out of the box
Cloud-first makes good local
DevEx hard to achieve
Standard DevOps
rules don’t apply

15. Let’s make some memes

25. Serverless Framework
Serverless is BUILDING BLOCKS
serverless.com

70. arn:aws:sns:us-east-1:770772978315:static-meme-topic???

71. A fully functional local AWS cloud stack
Localstack

101. Local
LocalStack
CI Staging Prod
Unit Tests
LocalStack
Unit Tests
Integration Tests

104. (406) 203-3961
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105. $ = Time x Memory x Invocations
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106. 1000 ms
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107. 1000 ms x 20,000,000 requests
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108. 1000 ms x 20,000,000 requests x $0.00000208*
*at a cost of $0.000000208/100ms
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109. 1000 ms x 20,000,000 requests x $0.00000208*
*at a cost of $0.000000208/100ms
= $38.81/month
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110. < 150 Lines of Code
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111. Is our service ready?
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112. Is our service ready?
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…Kind of

113. Downsides
Still really new
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114. Downsides
Still really new
Vendor lock in
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115. Downsides
Still really new
Vendor lock in Moving Target
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116. Downsides
Not suited for all applications
Still really new
Vendor lock in Moving Target
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117. Serverless is a MINDSET
You can start TODAY
…and now you know (some of) the PITFALLS
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118. Questions?
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119. What about logging?

120. What about logging?