Building a realtime chat app with GraphQL Subscriptions

Learn how subscriptions in Hasura GraphQL Engine can be used to build a full-fledged real-time group chat app on Postgres with React and Apollo. Pro Tip: There's no backend code involved. Everything is declarative. TLDR Hasura allows us to build a realtime GraphQL API without writing any backend code. To save bandwith we use a subscription to listen for message events, then run a query to fetch…

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