GraphQL subscriptions is a simple npm package that lets you wire up GraphQL with a pubsub system (like Redis) to implement subscriptions in GraphQL. You can use it with any GraphQL client and server (not only Apollo). To begin with GraphQL subscriptions, start by defining a GraphQL Subscription type in your schema. Next, add the Subscription type to your schema definition. Now, let's create a simple PubSub instance - it is a simple pubsub implementation, based on EventEmitter. ...