JSFoo is in its ninth edition this year. Talks at JSFoo 2019 will cover the following topics:
- Component architecture -- how different web components have been stitched together to build apps; outcomes on UI and performance as a result of architecture choices
- Deployment practices for front-end and how Kubernetes and CI/CD fall into this picture
- Accessibility
- Developer experience (DX)
- Functional programming paradigms: ReasonML and ClojureScript
- Privacy and Content Security Policy (CSP)
- New developments such as SvelteJS
Speakers from Razorpay, CloudCherry, Myntra, Innovaccer, GitLab, Microsoft, Atlassian and Gramener will share their work and learnings on these topics.
Who should attend JSFoo: #
JSFoo is a conference for practitioners, by practitioners. JSFoo 2019 is a conference for:
- Front-end engineers
- Senior software developers
- Team leaders and engineering managers
- Fullstack developers
- InfoSec professionals
##JSFoo 2019 details:
Dates: 27 and 28 September
Venue: NIMHANS Convention Centre, Bangalore
##JSFoo workshops:
The following workshops have been curated for before and after the conference:
##Contact details:
For inquiries about conference tickets, workshop tickets and any other details, call JSFoo on 7676332020 or email info@hasgeek.com
#Sponsors:
Click here for the Sponsorship Deck.
Email sales@hasgeek.com for bulk ticket purchases, and sponsoring JSFoo 2019.
JSFoo 2019 sponsors: #
#Platinum Sponsor
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#Gold Sponsor
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#Exhibition Sponsor
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#Bronze Sponsor
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#Community Sponsor
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Contact #
For tickets and sponsorships, contact info@hasgeek.com or call +91-7676332020. For queries about proposing talks, write to jsfoo.editorial@hasgeek.com
SP
Swanand Pagnis
@swanand
Constraint Driven Development
Submitted Feb 28, 2019
Technical level:
Intermediate
An experience report on how DB constraints helped our team perform profound structural changes to our application data through 4 large refactorings that happened over 30 months.
Relational databases are robust, reliable, and battle-tested. However, they truly shine when it comes to maintaining data integrity. This talk demonstrates the powerful nature of constraints in the context of large scale data refactorings, with real-life examples and code samples, all to make a central point: They cannot be an afterthought. You have to make them a part of your development process, and you get rewarded for doing so.
Outline #
Since the context is around four refactorings, the talk is also made up of as many sections.
- Migrating from Neo4j to PostgreSQL. (8 minutes)
- Changing primary keys from UUID to Integer while maintaining referential integrity. (7 minutes)
- Moving from a “shared and federated data” model to multi-tenant like “shared nothing” model. (8 minutes)
- Getting rid of a join-table in the most central relationship in the app, and using triggers in conjunction with constraints to being reliability into the process. (7 minutes)
Apart from talking about constraints, I will also touch upon “adjacent” principles that were a part of this process, such as idempotency, iterative development, and testability.
Intro and conclusion together: ~5 minutes.
Buffer time for adjustments: ~5 minutes.
Requirements #
This talk is most benefical to two kinds of people:
- Those who have prior experience building applications using a relational database
- Those who have built applications, but never with relational databases
Some experience or understanding of the process of writing web-based applications is required.
Speaker bio #
Swanand is a Principal Engineer at First.io, a Durham based startup. He is a self-proclaimed “gnosiophile” and a fan of continuous improvement. He loves writing software, building communities, and mentoring people. He’s currently helping people get better at PostgreSQL through https://postgres-workshop.com/
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