## Definitions

The `providerId` argument, including the default value “default”, _must_ correspond to an equivalent property in _events.providers.redis_ entry of the router config.yml.

### @edfs__redisPublish

```
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

```
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.