Anjana Vakil

Big Time Realtime: Streaming data with GraphQL

One of the advantages of GraphQL is that it provides great ergonomics for working with realtime data via subscriptions: long-lived, query-like operations that allow us to continuously receive data updates from the server, without worrying too much about the underlying data transfer details. But what do we need to worry about when developing realtime apps with GraphQL, especially if we’re trying to do so at scale? And if we run into performance problems (spoiler: we will!), what can we do about it?

In this talk, we’ll dig into how GraphQL subscriptions work, and some of the resulting challenges that crop up for developers when dealing with huge amounts of data. We’ll explore approaches to addressing those challenges as implemented in Hasura’s open-source GraphQL engine, with the goal of a better developer experience for building scalable realtime apps.

Anjana suffers from a chronic case of curiosity, which led her from philosophy to English teaching to computational linguistics to software development. As a Senior Developer Advocate at Hasura, these days she mostly codes & teaches from her home base in San Francisco, but she’ll always be a traveler at heart. Nerd out with her about functional programming & JavaScript, ask her about the Recurse Center & Outreachy, and definitely invite her to your karaoke party!