Past Events
November 30th at 6:30PM
React Advanced London November Meetup: Building Universal Tools for Web & Mobile

👋 General Info


Let's meet on November 30 to talk about all things React and dive deep into the details and internals of our favourite libraries, tools, and patterns. 😉

🗣To propose a talk for our meetups please fill in the CFP form.

📍Event location

The Trampery Old Street - 239 Old Street, London, EC1V 9EY

🎫 Registration

To attend the meetup please ➡️ REGISTER HERE ⬅️ via Guild. Please do RSVP here to show your friends you’re coming.

Feel free to bring +1 friend who is interested in joining us (just share the Guild link - so your friend could register as well).

🤝 Sponsored by

Huge thanks to our friends GeekyAnts!

GeekyAnts is a product studio for app design and development based in London, SF and India. We are a community-driven company and focus on tech stacks such as React, React Native & Flutter. We have been official Google suppliers since 2017 and have worked with clients like Paypoint, Soccerverse, Optum Homes and 500 others.

We're also top contributors to the open source community and have our own products like gluestack and NativeBase that received 3M+ downloads.

This event made possible thanks to the support from React Day Berlin & Test JS Summit organizers - GitNation

🕑 Event Schedule

18:30 - Doors open - snacks, beer, socialization

19:00 - Intro and announcements

19:10 - How to make Make Real with tldraw Lu Wilson

19:30 - Wait, you're using React Native on the Web?! Taz Singh

19:50 - Break with drinks

20:00 - Building Universal Tools for Web & Mobile - Sanket Sahu

20:20 - Networking, Open Mic Lightning Talks

Mingle until 10pm

🗣 Talks

➡️  Lu Wilson – How to make Make Real with tldraw

We recently re-wrote our selection feature for tldraw, a digital whiteboard. To make it work, we first needed to teach our whiteboard to see the canvas without first rendering it, and then to capture the (surprisingly! extraordinarily!) complex logic behind a simple click.

➡️ Taz Singh – Wait, you're using React Native on the Web?!

In this talk, I will dive into the skepticism of building React Native Apps for the Web, including everything from design systems and navigation to ExpoGL and Reanimated, from how they’ve successfully built Guild on top of this architecture.

➡️ Sanket Sahu – Building Universal Tools for Web & Mobile In this talk, I’m diving deep into how to build universal libraries that work on all platforms – a React Native first approach that works everywhere including the browsers! Together, we’ll explore the nitty-gritty challenges and innovative solutions associated with creating tools that seamlessly bridge the gap between web and mobile platforms. Expect a concoction of creativity, practicality, and actionable insights as we journey from idea to implementation.

➡️ Open Mic Lightning Talks – every attendee is welcome to speak (<5min)

➡️ To propose a talk for our meetups please fill in the CFP form

👍 Code of Conduct

By registering for this event you agree to comply with our CoC

📩 Contact

3 Presentations
146 Attended
September 7th at 4:30PM
September Meetup

This event will be held at Neo4j offices.

Containing topics around, Grafbase, Hasura, Neo4j, and Open Telemetry.

Will be live-streamed and details will be provided closer to the event.

The Neo4j office has a small capacity so please RSVP ASAP so that we can keep to our capacity requirements


05:30 - 05:50 PM (20 mins): A journey through the GraphQL validation system

Speaker: Darrell Warde

Organization: Neo4j -

Description: Darrell has recently spent a lot of time in and around the extensible GraphQL validation system. What started as a simple rule to fill a gap in the default rule set, soon turned into a plethora of custom rules to validate every detail of schema business logic in the Neo4j GraphQL Library. He will walk through some basic rules, and demonstrate how the system has been used to implement more complex logic.

05:50 - 06:00 PM (10 mins): Unify Data Sources at the Edge

Speaker: Jamie Burton

Organization: Grafbase -

X Handle:

Description: Combine multiple APIs and databases into a single centralized GraphQL API that you can enhance with auth, permissions, and caching, fully managed and deployed to the edge with Wasm.

06:00 - 06:10 PM (10 mins): Guild’s GraphQL Architecture Show & Tell

Speaker: Taz Singh

Organization: Guild -

X Handle:

Description: Curious about how a consumer-grade social application’s data architecture has been designed? Taz will review the end-to-end GraphQL architecture used at Guild. Everything from Relay to Persisted Operations cached on Cloudflare Workers to efficient Postgres schema resolution. The session is intended to be half show-and-tell and half open discussion with the audience.

06:10 - 06:30 PM (20 mins): Improving the GraphQL developer experience on

Speaker: Miles Bardon

Organization: LEGO -

X Handle:

Description: At, we have made great strides in stabilizing development cycles in our GraphQL gateway. We'll discuss the issues we used to have, how we used community tools to fix them, and where we're looking to go from here.

06:30 - 06:40 PM (10 mins): GraphQL Observability

Speaker: Dan Starns

Organization: Rocket Connect -

X Handle:

Description: So you spent all this time building and deploying your GraphQL API but your users are reporting slow queries and crashes. Before you can pinpoint those issues you first need to know how many requests you are getting, what each query was, and what’s going on in your resolvers. Join Dan where you will learn what observability is, how you can install it onto your GraphQL API, and how you can use it to improve your user's experience.

06:40 - 7:00 PM (20 mins): GraphQL without Relay is not worth it

Speaker: Tom Harding

Organization: Hasura -

Description: GraphQL has helped the industry realize the benefit of having typed APIs. But does that mean that if we switch over to a typed API like gRPC or OpenAPI then GraphQL is overkill? In this session, I want to discuss how GraphQL with Relay is critical to UI development and how GraphQL without Relay leads us to reinvent the wheel on state management and API libraries again and again. And also as a corollary, how using GraphQL without Relay might not really be worth it!

07:00 - 7:10 PM (10 mins): GraphQL and caching, when to make it more RESTful

Speaker: Endre Vegh

Organization: Formidable

X Handle: @endre_vegh

Description: We currently worked with an API that had to scale to serve multiple regions and millions of users. Introducing caching for such numbers is a common and battle-tested way to reduce costs. With services like Stellate, this is no longer impossible even when using GraphQL.

That is great news, however, also poses some challenges. We need to pay attention to how structure our types so we can fully utilize caching.

How to rethink some GraphQL schema designs so we can have the best of the data-driven paradigm of GQL and have amazing caching capabilities at the same time?

Future events:

GraphQLConf 2023 in SF on September 19-21, 2023:

7 Presentations
36 Attended
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