Firestore index error

Question

I am facing some problem when use angular 2 to query data from Firestore.

Could anyone please help me by checking it and tell me where I have done wrong ?

My

Answer 1

If you are using Firebase hosting you can add the following to your firestore.indexes.json file:

{
  "collectionGroup": "temp",
  "queryScope": "COLLECTION",
  "fields": [
    {
      "fieldPath": "uid",
      "order": "ASCENDING"
    },
    {
      "fieldPath": "startedAt",
      "order": "DESCENDING"
    }
  ]
}

When you deploy Firebase it will automatically build these indexes.

You can alternatively deploy the indexes by themselves with this command:

firebase deploy --only firestore:indexes