> ## Documentation Index
> Fetch the complete documentation index at: https://cosmo-docs.wundergraph.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Redis

## Definitions

<Note>
  The `providerId` argument, including the default value "default", *must* correspond to an equivalent property in *events.providers.redis* entry of the router config.yml.
</Note>

### @edfs\_redisPublish

```js theme={"system"}
directive @edfs__redisPublish(
  channel: String!,
  providerId: String! = "default"
) on FIELD_DEFINITION

type edfs__PublishResult {
    success: Boolean!
}
```

| Argument name | Type    | Value                                                                                                                                    |
| ------------- | ------- | ---------------------------------------------------------------------------------------------------------------------------------------- |
| channel       | String! | The event channel.                                                                                                                       |
| providerId    | String! | The provider ID, which identifies the connection in the router config.yaml. <br />If unsupplied, the provider ID "default" will be used. |

### @edfs\_\_redisSubscribe

```js theme={"system"}
directive @edfs__redisSubscribe(
  channels: [String!]!,
  providerId: String! = "default"
) on FIELD_DEFINITION
```

| Argument name | Type        | Value                                                                                                                                                                                                                                                                                            |
| ------------- | ----------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| channels      | \[String!]! | The event channels. It is possible to subscribe to multiple topics.<br />Also, subscription is done using `PSUBSCRIBE `so some pattern matching can be used, as per redis documentation: [https://redis.io/docs/latest/commands/psubscribe/](https://redis.io/docs/latest/commands/psubscribe/). |
| providerId    | String!     | The provider ID, which identifies the connection in the router config.yaml. <br />If unsupplied, the provider ID "default" will be used.                                                                                                                                                         |

<CardGroup cols={2}>
  <Card title="Redis" icon="sitemap" horizontal href="/router/event-driven-federated-subscriptions-edfs/redis" />
</CardGroup>