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Fixed a couple typos #1309

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Jul 11, 2018
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Fixed a couple typos #1309

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4 changes: 2 additions & 2 deletions docs/source/features/subscriptions.md
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Expand Up @@ -5,11 +5,11 @@ subtitle: Adding subscriptions to Apollo Server

Subscriptions are GraphQL operations that watch events emitted from Apollo Server.
The native Apollo Server supports GraphQL subscriptions without additional configuration.
All integration that allow HTTP servers, such as express and Hapi, also provide GraphQL subscriptions.
All integrations that allow HTTP servers, such as express and Hapi, also provide GraphQL subscriptions.

## Subscriptions Example

Subscriptions depend on use a publish and subscribe primitive to generate the events that notify a subscription. `PubSub` is a factory that creates event generators that is provided by all supported packages. `PubSub` is an implementation of the `PubSubEngine` interface, which has been adopted by a variety of additional [event-generating backends](#PubSub-Implementations).
Subscriptions depend on use of a publish and subscribe primitive to generate the events that notify a subscription. `PubSub` is a factory that creates event generators that is provided by all supported packages. `PubSub` is an implementation of the `PubSubEngine` interface, which has been adopted by a variety of additional [event-generating backends](#PubSub-Implementations).

```js
const { PubSub } = require('apollo-server');
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