GraphQL & Relay

Apr 28, 20163 likes1,146 views

The document discusses GraphQL, Relay, and some of their benefits and challenges. Some key points covered include: - GraphQL allows for declarative and UI-driven data fetching which can optimize network requests. - Relay uses GraphQL and allows defining data requirements and composing queries to fetch nested data in one roundtrip. - Benefits include simpler API versioning since fields can be changed without breaking clients. - Challenges include verbose code, lack of documentation, and not supporting subscriptions or local state management out of the box. - Overall GraphQL aims to solve many data fetching problems but has a complex setup process and learning curve.

Viacheslav Slinko 
CIAN Group
@vslinko
GraphQL
Relay
and

Problems
• UI Driven Data Fetching
• Network Op!miza!ons
• Simple API Versioning
• Incremental Rendering
3

{ 
me { 
nickname 
} 
}
GraphQL Request
8

{“data”: { 
“me”: { 
“nickname”: “vslinko” 
} 
}}
GraphQL Response
9

Data Layer
Applica!on Layer
GraphQL
10
Your current
business logic
Library on your
favorite language
Any database
you want

Data Layer
Applica!on Layer
GraphQL
Relay
React
11
Your current
business logic
Library on your
favorite language
Any database
you want
Client JavaScript
Framework
View Layer

fragments: {
object: () => Relay.QL` 
fragment on Object { 
title 
photos(width: 300) { 
url 
} 
} 
`, 
}
fragments: {
object: () => Relay.QL` 
fragment on Object { 
title 
photos(width: 300) { 
url 
} 
} 
`, 
}
fragments: {
object: () => Relay.QL` 
fragment on Object { 
title 
photos(width: 300) { 
url 
} 
} 
`, 
}
fragments: {
object: () => Relay.QL` 
fragment on Object { 
title 
photos(width: 300) { 
url 
} 
} 
`, 
}
Parse Requirements
14

fragments: {
user: () => Relay.QL` 
fragment on User { 
favourites(first: 10) { 
${ObjectView.getFragment(‘object’)} 
} 
} 
`, 
}
Compose Requirements
15

fragments: {
root: () => Relay.QL` 
fragment on RootQuery {
me {
balance
${ObjectView.getFragment(‘user’)}
} 
} 
`, 
}
Send Composed Query
16

Balance
User
Object
Photo 1 Photo 2 Photo 3
Execute Query
Time
17

User
Object
Object
Object
PhotoPhotoPhoto
PhotoPhotoPhoto
PhotoPhotoPhoto
Render and Cache
18

There are only
two hard things
in Computer Science:
cache invalida!on
and naming things.
20

Muta!ons
• Data Changes
• Side-eﬀects
• Declara!ve API
• Op!mis!c Updates
22

24
GraphQL
Version 1
Applica!on
Version 1
Versioning
Ini!al release

GraphQL
Version 1
Applica!on
Version 1
Version 2
Versioning
New features — new ﬁelds 24

GraphQL
Version 1
Applica!on
Version 1
Version 2
Version 3
Versioning
Change ﬁelds without problems 24

GraphQL
Version 1
Applica!on
Version 997
Version 998
Version 999
Applica!on
Version 1
Versioning
Do not delete ﬁelds — deprecate them 24

Good Parts: Recap
• Declara!ve & UI Oriented
• Very Eﬀec!ve
• Simple Maintenance
• Extra Pre#y Features
26

Current Problems
• No Subscrip!ons
• No Local State Management
• Complex Setup Process
30

In Conclusion
• Tries to Solve All Problems
• Simple but Not Easy
• Growing Community
32

Thanks!
Ques!ons?
h"p://bit.ly/gr-notes
Viacheslav Slinko 
CIAN Group
@vslinko

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Toradex brings robust Linux support to SMARC (Smart Mobility Architecture), ensuring high performance and long-term reliability for embedded applications. Here’s how: • Optimized Torizon OS & Yocto Support – Toradex provides Torizon OS, a Debian-based easy-to-use platform, and Yocto BSPs for customized Linux images on SMARC modules. • Seamless Integration with i.MX 8M Plus and i.MX 95 – Toradex SMARC solutions leverage NXP’s i.MX 8 M Plus and i.MX 95 SoCs, delivering power efficiency and AI-ready performance. • Secure and Reliable – With Secure Boot, over-the-air (OTA) updates, and LTS kernel support, Toradex ensures industrial-grade security and longevity. • Containerized Workflows for AI & IoT – Support for Docker, ROS, and real-time Linux enables scalable AI, ML, and IoT applications. • Strong Ecosystem & Developer Support – Toradex offers comprehensive documentation, developer tools, and dedicated support, accelerating time-to-market. With Toradex’s Linux support for SMARC, developers get a scalable, secure, and high-performance solution for industrial, medical, and AI-driven applications. Do you have a specific project or application in mind where you're considering SMARC? We can help with Free Compatibility Check and help you with quick time-to-market For more information: https://www.toradex.com/computer-on-modules/smarc-arm-family

Generative Artificial Intelligence (GenAI) in BusinessDr. Tathagat Varma

HCL Nomad Web – Best Practices und Verwaltung von Multiuser-Umgebungenpanagenda

Webinar Recording: https://www.panagenda.com/webinars/hcl-nomad-web-best-practices-und-verwaltung-von-multiuser-umgebungen/ HCL Nomad Web wird als die nächste Generation des HCL Notes-Clients gefeiert und bietet zahlreiche Vorteile, wie die Beseitigung des Bedarfs an Paketierung, Verteilung und Installation. Nomad Web-Client-Updates werden “automatisch” im Hintergrund installiert, was den administrativen Aufwand im Vergleich zu traditionellen HCL Notes-Clients erheblich reduziert. Allerdings stellt die Fehlerbehebung in Nomad Web im Vergleich zum Notes-Client einzigartige Herausforderungen dar. Begleiten Sie Christoph und Marc, während sie demonstrieren, wie der Fehlerbehebungsprozess in HCL Nomad Web vereinfacht werden kann, um eine reibungslose und effiziente Benutzererfahrung zu gewährleisten. In diesem Webinar werden wir effektive Strategien zur Diagnose und Lösung häufiger Probleme in HCL Nomad Web untersuchen, einschließlich - Zugriff auf die Konsole - Auffinden und Interpretieren von Protokolldateien - Zugriff auf den Datenordner im Cache des Browsers (unter Verwendung von OPFS) - Verständnis der Unterschiede zwischen Einzel- und Mehrbenutzerszenarien - Nutzung der Client Clocking-Funktion

Transcript: #StandardsGoals for 2025: Standards & certification roundup - Tec...BookNet Canada

Book industry standards are evolving rapidly. In the first part of this session, we’ll share an overview of key developments from 2024 and the early months of 2025. Then, BookNet’s resident standards expert, Tom Richardson, and CEO, Lauren Stewart, have a forward-looking conversation about what’s next. Link to recording, presentation slides, and accompanying resource: https://bnctechforum.ca/sessions/standardsgoals-for-2025-standards-certification-roundup/ Presented by BookNet Canada on May 6, 2025 with support from the Department of Canadian Heritage.

SAP Modernization: Maximizing the Value of Your SAP S/4HANA Migration.pdfPrecisely

How Can I use the AI Hype in my Business Context?Daniel Lehner

𝙄𝙨 𝘼𝙄 𝙟𝙪𝙨𝙩 𝙝𝙮𝙥𝙚? 𝙊𝙧 𝙞𝙨 𝙞𝙩 𝙩𝙝𝙚 𝙜𝙖𝙢𝙚 𝙘𝙝𝙖𝙣𝙜𝙚𝙧 𝙮𝙤𝙪𝙧 𝙗𝙪𝙨𝙞𝙣𝙚𝙨𝙨 𝙣𝙚𝙚𝙙𝙨? Everyone’s talking about AI but is anyone really using it to create real value? Most companies want to leverage AI. Few know 𝗵𝗼𝘄. ✅ What exactly should you ask to find real AI opportunities? ✅ Which AI techniques actually fit your business? ✅ Is your data even ready for AI? If you’re not sure, you’re not alone. This is a condensed version of the slides I presented at a Linkedin webinar for Tecnovy on 28.04.2025.

DevOpsDays Atlanta 2025 - Building 10x Development Organizations.pptxJustin Reock

Building 10x Organizations with Modern Productivity Metrics 10x developers may be a myth, but 10x organizations are very real, as proven by the influential study performed in the 1980s, ‘The Coding War Games.’ Right now, here in early 2025, we seem to be experiencing YAPP (Yet Another Productivity Philosophy), and that philosophy is converging on developer experience. It seems that with every new method we invent for the delivery of products, whether physical or virtual, we reinvent productivity philosophies to go alongside them. But which of these approaches actually work? DORA? SPACE? DevEx? What should we invest in and create urgency behind today, so that we don’t find ourselves having the same discussion again in a decade?

Drupalcamp Finland – Measuring Front-end Energy ConsumptionExove

Big Data Analytics Quick Research Guide by Arthur MorganArthur Morgan

This is a Quick Research Guide (QRG). QRGs include the following: - A brief, high-level overview of the QRG topic. - A milestone timeline for the QRG topic. - Links to various free online resource materials to provide a deeper dive into the QRG topic. - Conclusion and a recommendation for at least two books available in the SJPL system on the QRG topic. QRGs planned for the series: - Artificial Intelligence QRG - Quantum Computing QRG - Big Data Analytics QRG - Spacecraft Guidance, Navigation & Control QRG (coming 2026) - UK Home Computing & The Birth of ARM QRG (coming 2027) Any questions or comments? - Please contact Arthur Morgan at [email protected]. 100% human made.

IEDM 2024 Tutorial2_Advances in CMOS Technologies and Future Directions for C...organizerofv

Special Meetup Edition - TDX Bengaluru Meetup #52.pptxshyamraj55

Rusty Waters: Elevating Lakehouses Beyond Sparkcarlyakerly1

Spark is a powerhouse for large datasets, but when it comes to smaller data workloads, its overhead can sometimes slow things down. What if you could achieve high performance and efficiency without the need for Spark? At S&P Global Commodity Insights, having a complete view of global energy and commodities markets enables customers to make data-driven decisions with confidence and create long-term, sustainable value. 🌍 Explore delta-rs + CDC and how these open-source innovations power lightweight, high-performance data applications beyond Spark! 🚀

The Evolution of Meme Coins A New Era for Digital Currency ppt.pdfAbi john

#StandardsGoals for 2025: Standards & certification roundup - Tech Forum 2025BookNet Canada

Book industry standards are evolving rapidly. In the first part of this session, we’ll share an overview of key developments from 2024 and the early months of 2025. Then, BookNet’s resident standards expert, Tom Richardson, and CEO, Lauren Stewart, have a forward-looking conversation about what’s next. Link to recording, transcript, and accompanying resource: https://bnctechforum.ca/sessions/standardsgoals-for-2025-standards-certification-roundup/ Presented by BookNet Canada on May 6, 2025 with support from the Department of Canadian Heritage.

Mobile App Development Company in Saudi ArabiaSteve Jonas

EmizenTech is a globally recognized software development company, proudly serving businesses since 2013. With over 11+ years of industry experience and a team of 200+ skilled professionals, we have successfully delivered 1200+ projects across various sectors. As a leading Mobile App Development Company In Saudi Arabia we offer end-to-end solutions for iOS, Android, and cross-platform applications. Our apps are known for their user-friendly interfaces, scalability, high performance, and strong security features. We tailor each mobile application to meet the unique needs of different industries, ensuring a seamless user experience. EmizenTech is committed to turning your vision into a powerful digital product that drives growth, innovation, and long-term success in the competitive mobile landscape of Saudi Arabia.

AI EngineHost Review: Revolutionary USA Datacenter-Based Hosting with NVIDIA ...SOFTTECHHUB

I started my online journey with several hosting services before stumbling upon Ai EngineHost. At first, the idea of paying one fee and getting lifetime access seemed too good to pass up. The platform is built on reliable US-based servers, ensuring your projects run at high speeds and remain safe. Let me take you step by step through its benefits and features as I explain why this hosting solution is a perfect fit for digital entrepreneurs.