firestore.indexes.json

{
  "indexes": [
    {
      "collectionId": "threads",
      "fields": [
        {
          "fieldPath": "participant_ids",
          "mode": "ARRAY_CONTAINS"
        },
        {
          "fieldPath": "last_message_at",
          "mode": "DESCENDING"
        }
      ]
    },
    {
      "collectionId": "threads",
      "fields": [
        {
          "fieldPath": "participant_ids",
          "mode": "ARRAY_CONTAINS"
        },
        {
          "fieldPath": "request_or_offer_id",
          "mode": "ASCENDING"
        },
        {
          "fieldPath": "last_message_at",
          "mode": "DESCENDING"
        }
      ]
    },
    {
      "collectionId": "messages",
      "fields": [
        {
          "fieldPath": "thread_id",
          "mode": "ASCENDING"
        },
        {
          "fieldPath": "created_at",
          "mode": "ASCENDING"
        }
      ]
    },
    {
      "collectionId": "help_requests",
      "fields": [
        {
          "fieldPath": "status",
          "mode": "ASCENDING"
        },
        {
          "fieldPath": "geohash",
          "mode": "DESCENDING"
        },
        {
          "fieldPath": "created_at",
          "mode": "DESCENDING"
        }
      ]
    },
    {
      "collectionId": "help_requests",
      "fields": [
        {
          "fieldPath": "creator_id",
          "mode": "DESCENDING"
        },
        {
          "fieldPath": "created_at",
          "mode": "DESCENDING"
        }
      ]
    },
    {
      "collectionId": "help_offers",
      "fields": [
        {
          "fieldPath": "geohash",
          "mode": "DESCENDING"
        },
        {
          "fieldPath": "created_at",
          "mode": "DESCENDING"
        }
      ]
    }
  ],
  "fieldOverrides": []
}