Graphql-engine: typescript types for event triggers

[tsujp]

It'd be nice to have predefined types ship with Hasura. One practical use case for justification is creating webhooks using Zeit's micro where it'd be nice to have typing for the event-trigger payload, headers etc.

For example, this is an example payload:

{
    "event": {
        "session_variables": {
            "x-hasura-role": "admin"
        },
        "op": "INSERT",
        "data": {
            "old": null,
            "new": {
                "data": {
                    "args": [
                        123
                    ],
                    "func": "dosomething"
                },
                "id": 2
            }
        }
    },
    "created_at": "2019-09-26T05:59:40.568009Z",
    "id": "8ff13b13-7892-4d3c-888a-f637074b660f",
    "delivery_info": {
        "max_retries": 0,
        "current_retry": 0
    },
    "trigger": {
        "name": "testtrigger"
    },
    "table": {
        "schema": "public",
        "name": "test_table"
    }
}

[polRk]

Like this ?

export interface Payload<T = any> {
  event: {
    session_variables: { [x: string]: string }
    op: 'INSERT' | 'UPDATE' | 'DELETE' | 'MANUAL'
    data: {
      old: T | null
      new: T | null
    }
  }
  created_at: string
  id: string
  delivery_info: {
    max_retries: number
    current_retry: number
  }
  trigger: {
    name: string
  }
  table: {
    schema: string
    name: string
  }
}