firestore.indexes.json

{
  "indexes": [
    {
      "collectionGroup": "entries",
      "queryScope": "COLLECTION",
      "fields": [
        {
          "fieldPath": "month",
          "order": "ASCENDING"
        },
        {
          "fieldPath": "year",
          "order": "DESCENDING"
        },
        {
          "fieldPath": "day",
          "order": "DESCENDING"
        },
        {
          "fieldPath": "created",
          "order": "DESCENDING"
        }
      ]
    },
    {
      "collectionGroup": "entries",
      "queryScope": "COLLECTION",
      "fields": [
        {
          "fieldPath": "year",
          "order": "DESCENDING"
        },
        {
          "fieldPath": "month",
          "order": "DESCENDING"
        },
        {
          "fieldPath": "day",
          "order": "DESCENDING"
        },
        {
          "fieldPath": "created",
          "order": "DESCENDING"
        }
      ]
    },
    {
      "collectionGroup": "posts",
      "queryScope": "COLLECTION",
      "fields": [
        {
          "fieldPath": "isDraft",
          "order": "ASCENDING"
        },
        {
          "fieldPath": "date",
          "order": "ASCENDING"
        }
      ]
    },
    {
      "collectionGroup": "posts",
      "queryScope": "COLLECTION",
      "fields": [
        {
          "fieldPath": "isDraft",
          "order": "ASCENDING"
        },
        {
          "fieldPath": "date",
          "order": "DESCENDING"
        }
      ]
    },
    {
      "collectionGroup": "posts",
      "queryScope": "COLLECTION",
      "fields": [
        {
          "fieldPath": "tags",
          "arrayConfig": "CONTAINS"
        },
        {
          "fieldPath": "isDraft",
          "order": "ASCENDING"
        },
        {
          "fieldPath": "date",
          "order": "DESCENDING"
        }
      ]
    }
  ],
  "fieldOverrides": []
}
//run "firebase firestore:indexes" to sync with webconsole