Attendee Event Connection

schema.graphql

type User @model
@key(name: "byUserIdIndex", fields: ["userId"], queryField: "userById")
@auth(
  rules: [
    { allow: owner, ownerField: "userId" }
  ]) {
  id: ID!
  userId: ID!
  type: String!
  events: [EventLink] @connection(keyName: "EventUserIndex", fields: ["userId"])
}

type Event @model
@key(name: "byEventIdIndex", fields: ["eventId"])
  {
  id: ID!
  eventId: ID!
  name: String!
  attendees: [EventLink] @connection(keyName: "EventIdIndex", fields: ["id"])
}

type EventLink @model
  @auth(rules: [
    { allow: owner, ownerField: "eventLinkUserId"}
  ])
  @key(name: "EventUserIndex", fields: ["eventLinkUserId"])
  @key(name: "EventIdIndex", fields: ["eventLinkEventId"]) {
  id: ID!
  eventLinkEventId: ID!
  eventLinkUserId: ID!
  event: [Event] @connection(keyName: "byEventIdIndex", fields: ["eventLinkEventId"])
  attendees: [User] @connection(keyName: "byUserIdIndex", fields: ["eventLinkUserId"])
}