Scaling & Production Considerations. Scaling Across Instances. An in-memory PubSub only knows about events published within its own process. If a mutation lands on instance A but a subscriber's WebSocket is held open by …
ReadSchema, Resolvers & PubSub. Schema & Resolver. type Subscription { messageAdded(channelId: ID!): Message } type Mutation { sendMessage(channelId: ID!, text: String!): Message }. const { PubSub, withFilter } = require('gr…
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