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

# Get canonical run event

> Read one canonical run event by its durable event id.

`canonicalRunEventV1(command: CanonicalRunEventCommandV1!): RunReadMemberV1!`

## Arguments

| Argument | Type | Required |
| - | - | - |
| `command` | [`CanonicalRunEventCommandV1!`](https://veryfront.com/docs/cloud/graphql/types/canonicalruneventcommandv1) | Yes |

## Input fields

### command

[`CanonicalRunEventCommandV1`](https://veryfront.com/docs/cloud/graphql/types/canonicalruneventcommandv1)

| Field | Type | Required |
| - | - | - |
| `runId` | [`ID!`](https://veryfront.com/docs/cloud/graphql/types/id) | Yes |
| `eventId` | [`RunEventCursorV1!`](https://veryfront.com/docs/cloud/graphql/types/runeventcursorv1) | Yes |

## Response

Returns [`RunReadMemberV1!`](https://veryfront.com/docs/cloud/graphql/types/runreadmemberv1). Open the type for its fields and nested types.

* [`CanonicalRunEventMemberV1`](https://veryfront.com/docs/cloud/graphql/types/canonicalruneventmemberv1)
* [`LegacyRunEventMemberV1`](https://veryfront.com/docs/cloud/graphql/types/legacyruneventmemberv1)

Types marked with `!` cannot be null. Lists use `[Type]` notation. The [type index](https://veryfront.com/docs/cloud/graphql/schema.md) lists all published input and response types.

## Example

```graphql title="query.graphql" theme={null}
query CanonicalRunEventV1($command: CanonicalRunEventCommandV1!) {
  canonicalRunEventV1(command: $command) {
    __typename
    ... on CanonicalRunEventMemberV1 {
    value
    }
    ... on LegacyRunEventMemberV1 {
    value
    }
  }
}
```

```json title="variables.json" theme={null}
{
  "command": {
    "runId": "00000000-0000-4000-8000-000000000001",
    "eventId": "example"
  }
}
```

<details>
  <summary>Try this query</summary>

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  Query

  Variables (JSON)
</details>


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