database.rules.json

{
  "rules": {
    "admins": {
      ".read": true,
      ".write": "auth != null && auth.provider == 'google' && root.child('admins').child(auth.uid).exists()"
    },
    "userProfile": {
    	".read": "auth != null && auth.provider == 'google'",
      ".write": "auth != null && auth.provider == 'google'"
    },
    "$year": {
      "levels": {
        ".read": true,
        ".write": "auth != null && auth.provider == 'google' && root.child('admins').child(auth.uid).exists()"
      },
      "schedules": {
        "$user_id": {
          ".read": "auth != null && auth.provider == 'google' && $user_id == auth.uid",
          ".write": "auth != null && auth.provider == 'google' && $user_id == auth.uid"
        }
      },
      "sections": {
        ".read": true,
        ".write": "auth != null && auth.provider == 'google' && root.child('admins').child(auth.uid).exists()"
      },
      "sessions": {
        ".read": true,
        ".write": "auth != null && auth.provider == 'google' && root.child('admins').child(auth.uid).exists()",
        "$session_id": {
          "surveys": {
            ".read": "auth != null && auth.provider == 'google' && root.child('admins').child(auth.uid).exists()",
            ".write": "auth != null && auth.provider == 'google'"
          }
        }
      },
      "siteConfig": {
        ".read": true,
        ".write": "auth != null && auth.provider == 'google' && root.child('admins').child(auth.uid).exists()"
      },
      "speakers": {
        ".read": true,
        ".write": "auth != null && auth.provider == 'google' && root.child('admins').child(auth.uid).exists()",
      	".indexOn": "featured"
      },
      "sponsors": {
        ".read": true,
        ".write": "auth != null && auth.provider == 'google' && root.child('admins').child(auth.uid).exists()"
      },
      "tickets": {
        ".read": true,
        ".write": "auth != null && auth.provider == 'google' && root.child('admins').child(auth.uid).exists()",
      	".indexOn": "active"
      }
    }
  }
}