How we’ve built our serverless error-tracking developer tool, Desole, over one weekend

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$ lost due to software failure only in 2017 https://www.tricentis.com/software-fail-watch/ 1,715,430,778,504

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We’re really sorry!   We’ll try to be better next year!

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Désolé (FR: “I’m really sorry”)

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Error-tracking

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Why not serverless?

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How we’ve built our serverless error-tracking developer tool, Desole, over one weekend

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Aleksandar Simović Senior Software Engineer at ScienceExchange co-author of “Serverless Applications with Node.js” AWS Serverless Hero co-organizer of JS Belgrade (>1800 members) co-organizer of Map Meetup Belgrade (just started) core team member of Claudia.js

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Error tracker? Serverless?   Why?

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Well, hello there!

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We’ll ﬁx them… Eventually!

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How do we start?

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Any application that can be “pay-per-use”,   will be “pay-per-use” !

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Desole A serverless error-tracking tool that is: - pay-per-use - keeps control over your data and tool - serverless - motivates to have LESS errors (ﬁnancial incentive) - easy to install and integrate - free and open-source

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Overview Consists of a: - Client - Collector - Additional publishers

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Architecture Overview

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Hexagonal architecture • Separate the main business logic • Easier to test • Less brittle • Derisk our code

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How should we provide it?

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Serverless App Repo

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Serverless App Repo

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Serverless App Repo

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Installation 1. Install the Desole Collector via: • AWS Serverless Application Repository • CloudFormation deployment buttons • Custom CloudFormation deployment   (just for not provided regions) 2. Include Desole CDN in your frontend, instantiate it and throw it some errors!

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Desole installation

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Demonstration

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Key takeaways • Testing and monitoring our serverless (backend) applications is important, but a big portion of our business is in our SPA frontend applications. They need our care, too! • Error-tracking is necessary, why not have it serverless? • AWS Serverless Application Repository is the “Next Generation Github” where you can, also, instantly deploy your apps. • Serverless has an immense impact on the existing software business models.     “Applications that can be pay-per-use, will be pay-per-use.” • Building a tool doesn’t need to take a month, meet with your friend and build something over one weekend.

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Q&A For Serverless London   40% discount   using    claudia40    More at:  effortless-serverless.com     Twitter:  @simalexan