Anyone successfully gotten subscriptions to work with Prisma 1? I’m setting them up and I’m almost all the way there, but I’m getting this error back while listening to one in the Playground:

{
  "errors": [
    {
      "message": "Cannot read property 'body' of undefined",
      "locations": [
        {
          "line": 149,
          "column": 3
        }
      ],
      "path": [
        "syncState"
      ]
    }
  ],
  "data": null
}

This is how my

syncState

subscription is set up:

import { subscriptionField } from 'nexus';
import { Context } from '../../dbTypes';

export const syncStateSubscription = subscriptionField('syncState', {
	type: 'SyncStateSubscriptionPayload',
	subscribe(root, args, ctx: Context) {
		return ctx.prisma.$subscribe.syncState() as any;
	},
	resolve(payload) {
		return payload;
	},
});