Sui Deploys Real-Time Data Streaming with GraphQL Subscriptions

Sui, a blockchain platform, has launched GraphQL subscriptions for real-time data on its Mainnet. This feature allows developers to stream data, including checkpoints, transaction blocks, and events, through a single unified interface.

The GraphQL subscriptions use WebSocket connections and come with built-in capabilities such as query-aligned filtering, automatic reconnection, and the ability to backfill from a past cursor before seamlessly transitioning to a live feed.

This marks the final chapter in Sui's migration away from JSON-RPC, which began in 2025 when its GraphQL RPC entered beta. The legacy JSON-RPC system was fully phased out on Foundation nodes in late July 2026.