B4A Library [B4X] FirebaseFirestore

Good day & evening
This is a Firestore Library I've been perfecting since late last year since most of my projects I use Firebase.
I used Firebase REST APIs and made it Look, Feel & Work like the original.
Does not conflict with other Firebase Libraries
Works the same way as: https://www.b4x.com/android/forum/threads/firebaseadmin-library.155115/

If you wanna support my work you can do that by buying me a coffee

FirebaseFirestore
Author: Claude Amadu
Version: 3.01

• Firestore
  • Events
    • Ready
    • Error(Code As Int, Status As String)
    • DocumentChanged(Data As Map)
    • CollectionChanged(Data As Map)
    • ListenerDisconnected
  • Fields
    • TYPE_ADDED
    • TYPE_MODIFIED
    • TYPE_REMOVED
  • Functions
    • Initialize(EventName As String,Module As Object, Token As String, Database As String, ProjectId As String)
    • GetDocument(Collection As String, Document As String) As ResumableSub
    • GetCollection(Collection As String) As ResumableSub
    • GetCollection2(Collection As String, Limit As Int) As ResumableSub
    • CreateDocument(Collection As String, Document As String, Fields As Map) As ResumableSub
    • UpdateDocument(Collection As String,Document As String, Fields As Map) As ResumableSub
    • DeleteDocumentFields(Collection As String, Document As String, Fields As List) As ResumableSub
    • DeleteCollection(Collection As String) As ResumableSub
    • DeleteDocument(Collection As String, Document As String) As ResumableSub
    • GetFileURL(Path As String) As String
    • RunQuery(StructuredQuery As Query) As ResumableSub
    • CollectionListen(Collection As String) As ListenerRegistration
    • DocumentListen(Collection As String, Document As String) As ListenerRegistration
    • GenerateDocumentId As String
• FieldFilter
  • Functions
    • Initialize As FieldFilter
    • IsIn(Field As String, Value As List) As FieldFilter
    • NotIn(Field As String, Value As List) As FieldFilter
    • ArrayContainsAny(Field As String, Value As Object) As FieldFilter
    • ArrayContains(Field As String, Value As Object) As FieldFilter
    • NotEqual(Field As String, Value As Object) As FieldFilter
    • EqualTo(Field As String, Value As Object) As FieldFilter
    • LessThan(Field As String, Value As Object) As FieldFilter
    • GreaterThan(Field As String, Value As Object) As FieldFilter
    • GreaterThanOrEqualTo(Field As String, Value As Object) As FieldFilter
    • LessThanOrEqualTo(Field As String, Value As Object) As FieldFilter
    • Complete As Object
• CompositeFilter
  • Functions
    • Initialize As CompositeFilter
    • Filters(Filter As FieldFilter) As CompositeFilter
    • Filters2(Filter As FieldFilter) As CompositeFilter
    • Complete As Map
• UnaryFilter
  • Fields
    • IN As String
    • CONTAINS As String
    • IS_NOT_NAN As String
    • IS_NOT_NULL As String
  • Functions
    • Initialize As UnaryFilter
    • SetOperator(Operator As String)As UnaryFilter
    • SetField(Field As String) As UnaryFilter
    • Complete As Map
• ListenerRegistration
  • Fields
    • Enabled
  • Functions
    • Initialize(Module As Object, EventName As String,Project As String)
    • CollectionListen(Collection As String)
    • DocumentListen(Collection As String, Document As String)
    • Remove
• Query
  • Fields
    • SubCollection
    • DESCENDING
    • ASCENDING
  • Functions
    • Initialize As Query
    • AddField(Field As String) As Query
    • AddFields(Fields As List) As Query
    • OrderBy(Field As String, Direction As String) As Query
    • From(CollectionPath As String) As Query
    • CollectionIn(DocumentPath As PathBuilder) As Query
    • StartAt(Values As List) As Query
    • EndAt(Values As List) As Query
    • Offset(Position As Int) As Query
    • Limit(LimitBy As Int) As Query
    • Where(Filter As CompositeFilter) As Query
    • Where2(Filter As FieldFilter) As Query
    • Where3(Filter As UnaryFilter) As Query
    • Complete As Map
• PathBuilder
  • Functions
    • Append(path As String) As PathBuilder
    • Collection(path As String) As PathBuilder
    • Document(path As String) As PathBuilder
    • Complete As String
• FirestoreUtils
  • Functions
    • ParseFirestoreJson(firestoreJson As String) As Map
    • ParseFirestoreMap(firestoreJsonMap As Map) As Map
    • CreateFirestoreMap(normalJsonMap As Map) As Map
    • CreateFirestoreValue(Value As Object) As Map
    • UrlEncodeMap(input As Map) As String

Examples:

Private Sub B4XPage_Created (Root1 As B4XView)
    Store.Initialize("Firestore",Me,Token,"",projectID)
End Sub

Private Sub Store_Ready
    'Perform some task here
End Sub

Wait For(Store.GetDocument("products","items")) Complete(Map As Map)

Wait For (Store.createDocument("users","ugXJFOC9GHZsOtlpW9Vc", Fields)) Complete(m As Map)

Wait For(Store.GetCollection("products")) Complete(Map As Map)

Wait For(Store.UpdateDocument("users","ugXJFOC9GHZsOtlpW9Vc",Fields)) Complete(Map As Map)

Dim dFields As List
dFields.Initialize
dFields.AddAll(Array As String("rider","lines","price"))
Wait For(Store.DeleteDocumentFields("delivery_requests",DocumentID,dFields)) Complete(dMap As Map)
Log(dMap)

Dim Filter As FieldFilter
Filter.Initialize.EqualTo("user_name","TECNO")
Dim Comp As CompositeFilter
Comp.Initialize.Filters(Filter)
Dim Qry As Query
Qry.Initialize.AddFields(Array As String("user_name","user_id")).OrderBy("user_id",Qry.DESCENDING).From("users").Where2(Filter)
Wait For(Store.RunQuery(Qry)) Complete(Map As Map)
Log(Map)

Dim Filter As FieldFilter
Filter.Initialize
Filter.GreaterThan("end",DateTime.Now)
Dim Qry As Query
Qry.Initialize
Qry.OrderBy("end",Qry.DESCENDING).OrderBy("date",Qry.DESCENDING).Where2(Filter).Limit(10)
Qry.From("promos")
Wait For (Store.RunQuery(Qry)) Complete(Data As Map)
Log(Data)

Dim Qry As Query
Qry.Initialize
Qry.OrderBy("store_name",Qry.ASCENDING).Limit(10)
Qry.From("users")
Wait For (Store.RunQuery(Qry)) Complete(Data As Map)
Log(Data)

Dim Filter As FieldFilter
Filter.Initialize.EqualTo("age",30)
Dim Comp As CompositeFilter
Comp.Initialize.Filters(Filter)
Dim Qry As Query
Qry.Initialize.OrderBy("age",Qry.DESCENDING).From("users").Where(Comp)
Wait For(Store.RunQuery(Qry)) Complete(Map As Map)

Dim Map As Map = CreateMap( _
"sender_id": MainPage.key.Get("uid"), _
"sender": MainPage.key.Get("user_name"), _
"message": TextField.Text, _
"timestamp": DateTime.Now _
)
Dim path As PathBuilder
path.Initialize
path.Collection("chats").Document(ChatDocID).Collection("messages")'Sub collection in chats
Log(path.Complete)
Wait For(store.CreateDocument(path.Complete,"",Map)) Complete(Data As Map)
Log(Data)

Public Sub StartListen
    UsersListerner = Store.CollectionListen("users")
    ChatsListener = Store.CollectionListen(ChatDocCollection)
End Sub

Dim ChatsListener As ListenerRegistration
Dim QueryMap As Map = CreateMap("orderBy":"timestamp","direction":"asc")
ChatsListener = Store.CollectionListen2(path.Complete,QueryMap)

Public Sub EndListen
    If UsersListerner.Enabled Then UsersListerner.Remove
    If ChatsListener.Enabled Then ChatsListener.Remove
End Sub

Private Sub Store_CollectionChanged(Data As Map)
    Log("Collection changed: " & Data)
    If Data.IsInitialized Then
        Dim Params As Map = Data.Get("data")
        Select Data.Get("type")
            Case Store.TYPE_ADDED
                Dim Left As Boolean = False
                If Params.Get("sender_id") == Key.get("uid") Then
                    Left = True
                End If
                Chat1.AddItem(Params.Get("message"),Params.Get("sender"), Left)
        End Select
    End If
End Sub

Private Sub Firestore_DocumentChanged(Data As Map)
        Select Data.Get("collection")
            Case "delivery_requests"
                Dim request As Map = Data.Get("data")
                DeliveryRequest = request
                GetRequestState(request.Get("status").As(Int))
            Case "rider_coordinates"
                Dim ride As Map = Data.Get("data")
'                Dim geo As Map = ride.Get("geopoint")
                CameraPosition.Initialize(ride.Get("latitude"),ride.Get("longitude"),Zoom)
                If Marker.IsInitialized == False Then
                    Marker = gmap.AddMarker3(ride.Get("latitude"),ride.Get("longitude"),"Rider",FontUtils.FontToBitmap(Chr(0xF21C),False,20,Colors.red))
                End If
                OreebaUtils.AnimateTo(Marker,2000,ride.Get("latitude"),ride.Get("longitude"),CameraPosition,gmap)
        End Select
End Sub

PrescriptionFile = $"prescriptions/${UserID}/${Product.Get("id")}/${FileResult.RealName}"$
Storage.UploadFile(FileResult.Dir,FileResult.FileName, $"/${PrescriptionFile}"$)
Wait For (Storage) Storage_UploadCompleted (ServerPath As String, success As Boolean)
Store.GetFileurl(PrescriptionFile)
'Result: https://firebasestorage.googleapis.com/v0/b/project-id.appspot.com/o/prescriptions%2FDj0pOcizCDVqeZk8DssQCmSeXCr1%2FT3yw5j7jgocqFwIVWWQ3%2FIMG-20231022-WA0003.jpg?alt=media
Fields.Put("photo_url",Store.GetFileurl(PrescriptionFile))
Wait For (Store.UpdateDocument("users",DocumentID,Fields)) Complete(m As Map)

Inspired By: https://www.b4x.com/android/forum/threads/firestore-api-rest-support.129551/ & https://firebase.google.com/docs/firestore/reference/rest/v1

HOSTING THE HTML
First you'll need to install Firebase CLI

1. Create a folder and open the folder in VS Code
2. In the terminal run firebase init hosting
3. When its done copy the index.html to the public folder
4. Edit the paste your firebase config
5. In the terminal run firebase deploy --only hosting
6. Check if it works by visiting https://PROJECT_ID.web.app/?collection=[A collection here] in a browser
7. View the browser console if you see logs as below of your collection then you're set to go

Change Log:

• v2.12
  • Forum release
• v2.52
  • Queries, Collection & Documents can be stored for re-use
  • ListenterRegistration updated to use Websockets instead of timer
• v3.00
  • Websocket Removed due to constant disconnection
  • Listener works by loading a webpage on your firebase hosting to read changes(See attached hosting.zip)
  • See Deploying Firebase Hosting
• v3.01
  • Listen to a collection by order in asc or desc (CollectionListen2)
  • Disconnect/Stop listening fixed
• v3.03
  • DeleteCollection fixed

 

[Claude Obiri Amadu]

Project currently using this Library

 

[superkan]

The rad backend meets the rad frontend (b4a). Match made in heaven yet no one prioritises it given how much it can boost the entire B4X lineup. I will surely pay for it once it starts to do its wonders.

 

[asales]

I download the chat examples to test, but there are several files missing.

 

[Alexander Stolte]

I have a question about the realtime/your ChangeListeners.

You are using 2 Timers which do a “GetDocument” every second?
I once looked at the pricing, so if I have the chat open for 13 hours and it asks every second whether there are any changes, then I have used up my free quota for today.

Or am I wrong?

 

[Claude Obiri Amadu]

I have a question about the realtime/your ChangeListeners.

You are using 2 Timers which do a “GetDocument” every second?
I once looked at the pricing, so if I have the chat open for 13 hours and it asks every second whether there are any changes, then I have used up my free quota for today.

Or am I wrong?

Yeah thats why I theres a Remove function
That can be used to disabled the timer when app closes
Will publish an update soon I'm try to store that data so that it can be reused
Sample below:

Store.OfflineMode = True' Every query/get/delete will update a global keystorevalue

'And new data can be fetched via:
Sub Swipe_RefreshRequested
    Store.OfflineMode = False
    wait for (GetCategory) Complete(Result As Object)
    Store.OfflineMode = True
    Swipe.RefreshCompleted     
End Sub

I'm open to suggestions

 

[Claude Obiri Amadu]

I download the chat examples to test, but there are several files missing.

Sorry for that forgot to add

[B4X] Firebase Auth REST Helper - manage the access tokens

The advantage of the rest API of Firebase auth is that it can be used cross platform. The downside is, we have to take care of the user access tokens ourselves. That's why I wrote this class, it works with the "FirebaseAuthREST" class. The class was inspired by @Erel oauth2 class, adapted to my...

www.b4x.com

 

[Claude Obiri Amadu]

'Install app.js on your server/hosting with Nodejs
'add package.json
'run npm install

namecheap was used for testing: https://masteringbackend.com/posts/how-to-host-nodejs-apps-on-namecheap/

'Example use
Store.WebAppUrl = "wss://firestore.mydomain.app/v1/"
Store.CollectionListen("users")

 

[Oregon]

Good day & evening
This is a Firestore Library I've been perfecting since late last year since most of my project I use Firebase.
I used Firebase REST APIs and made it Look, Feel & Work like the original.
Does not conflict with other Firebase Libraries
Works the same way as: https://www.b4x.com/android/forum/threads/firebaseadmin-library.155115/

If you wanna support my work you can do that here by paystack

FirebaseFirestore
Author: Claude Amadu
Version: 2.12

• Firestore
  • Events
    • Ready
    • Error(Code As Int, Status As String)
    • DocumentChanged(Data As Map)
    • CollectionChanged(Data As Map)
    • ListenerDisconnected(Reason As String)
  • Fields
    • TYPE_ADDED
    • TYPE_MODIFIED
    • TYPE_REMOVED
  • Functions
    • Initialize(EventName As String,Module As Object, Token As String, Database As String, ProjectId As String)
    • GetDocument(Collection As String, Document As String) As ResumableSub
    • GetCollection(Collection As String) As ResumableSub
    • GetCollection2(Collection As String, Limit As Int) As ResumableSub
    • CreateDocument(Collection As String, Document As String, Fields As Map) As ResumableSub
    • UpdateDocument(Collection As String,Document As String, Fields As Map) As ResumableSub
    • DeleteDocumentFields(Collection As String, Document As String, Fields As List) As ResumableSub
    • DeleteCollection(Collection As String) As ResumableSub
    • DeleteDocument(Collection As String, Document As String) As ResumableSub
    • GetFileURL(Path As String) As String
    • RunQuery(StructuredQuery As Query) As ResumableSub
    • CollectionListen(Collection As String) As ListenerRegistration
    • DocumentListen(Collection As String, Document As String) As ListenerRegistration
    • GenerateDocumentId As String
• FieldFilter
  • Functions
    • Initialize As FieldFilter
    • IsIn(Field As String, Value As List) As FieldFilter
    • NotIn(Field As String, Value As List) As FieldFilter
    • ArrayContainsAny(Field As String, Value As Object) As FieldFilter
    • ArrayContains(Field As String, Value As Object) As FieldFilter
    • NotEqual(Field As String, Value As Object) As FieldFilter
    • EqualTo(Field As String, Value As Object) As FieldFilter
    • LessThan(Field As String, Value As Object) As FieldFilter
    • GreaterThan(Field As String, Value As Object) As FieldFilter
    • GreaterThanOrEqualTo(Field As String, Value As Object) As FieldFilter
    • LessThanOrEqualTo(Field As String, Value As Object) As FieldFilter
    • Complete As Object
• CompositeFilter
  • Functions
    • Initialize As CompositeFilter
    • Filters(Filter As FieldFilter) As CompositeFilter
    • Filters2(Filter As FieldFilter) As CompositeFilter
    • Complete As Map
• UnaryFilter
  • Fields
    • IN As String
    • CONTAINS As String
    • IS_NOT_NAN As String
    • IS_NOT_NULL As String
  • Functions
    • Initialize As UnaryFilter
    • SetOperator(Operator As String)As UnaryFilter
    • SetField(Field As String) As UnaryFilter
    • Complete As Map
• ListenerRegistration
  • Functions
    • Initialize
    • Remove
• Query
  • Fields
    • SubCollection
    • DESCENDING
    • ASCENDING
  • Functions
    • Initialize As Query
    • AddField(Field As String) As Query
    • AddFields(Fields As List) As Query
    • OrderBy(Field As String, Direction As String) As Query
    • From(CollectionPath As String) As Query
    • CollectionIn(DocumentPath As PathBuilder) As Query
    • StartAt(Values As List) As Query
    • EndAt(Values As List) As Query
    • Offset(Position As Int) As Query
    • Limit(LimitBy As Int) As Query
    • Where(Filter As CompositeFilter) As Query
    • Where2(Filter As FieldFilter) As Query
    • Where3(Filter As UnaryFilter) As Query
    • Complete As Map
• PathBuilder
  • Functions
    • Append(path As String) As PathBuilder
    • Collection(path As String) As PathBuilder
    • Document(path As String) As PathBuilder
    • Complete As String

Examples:

Private Sub B4XPage_Created (Root1 As B4XView)
    Store.Initialize("Firestore",Me,Token,"",projectID)
End Sub

Private Sub Store_Ready
    'Perform some task here
End Sub

Wait For(Store.GetDocument("products","items")) Complete(Map As Map)

Wait For (Store.createDocument("users","ugXJFOC9GHZsOtlpW9Vc", Fields)) Complete(m As Map)

Wait For(Store.GetCollection("products")) Complete(Map As Map)

Wait For(Store.UpdateDocument("users","ugXJFOC9GHZsOtlpW9Vc",Fields)) Complete(Map As Map)

Dim dFields As List
dFields.Initialize
dFields.AddAll(Array As String("rider","lines","price"))
Wait For(Store.DeleteDocumentFields("delivery_requests",DocumentID,dFields)) Complete(dMap As Map)
Log(dMap)

Dim Filter As FieldFilter
Filter.Initialize.EqualTo("user_name","TECNO")
Dim Comp As CompositeFilter
Comp.Initialize.Filters(Filter)
Dim Qry As Query
Qry.Initialize.AddFields(Array As String("user_name","user_id")).OrderBy("user_id",Qry.DESCENDING).From("users").Where2(Filter)
Wait For(Store.RunQuery(Qry)) Complete(Map As Map)
Log(Map)

Dim Filter As FieldFilter
Filter.Initialize
Filter.GreaterThan("end",DateTime.Now)
Dim Qry As Query
Qry.Initialize
Qry.OrderBy("end",Qry.DESCENDING).OrderBy("date",Qry.DESCENDING).Where2(Filter).Limit(10)
Qry.From("promos")
Wait For (Store.RunQuery(Qry)) Complete(Data As Map)
Log(Data)

Dim Qry As Query
Qry.Initialize
Qry.OrderBy("store_name",Qry.ASCENDING).Limit(10)
Qry.From("users")
Wait For (Store.RunQuery(Qry)) Complete(Data As Map)
Log(Data)

Dim Filter As FieldFilter
Filter.Initialize.EqualTo("age",30)
Dim Comp As CompositeFilter
Comp.Initialize.Filters(Filter)
Dim Qry As Query
Qry.Initialize.OrderBy("age",Qry.DESCENDING).From("users").Where(Comp)
Wait For(Store.RunQuery(Qry)) Complete(Map As Map)

Dim Map As Map = CreateMap( _
"sender_id": MainPage.key.Get("uid"), _
"sender": MainPage.key.Get("user_name"), _
"message": TextField.Text, _
"timestamp": DateTime.Now _
)
Dim path As PathBuilder
path.Initialize
path.Collection("chats").Document(ChatDocID).Collection("messages")'Sub collection in chats
Log(path.Complete)
Ожидание(store.CreateDocument(path.Complete,"",Map)) Complete(Data As Map)
Журнал (Данные)[/КОД]

[CODE lang="b4x" title="Прослушивать изменения в коллекции или документе"]Public Sub StartListen
    UsersListerner = Store.CollectionListen("пользователи")
    ChatsListener = Store.CollectionListen(ChatDocCollection)
Конец субтитра

Публичный субконецПрослушать
    Если UsersListerner.IsInitialized, то UsersListerner.Remove
    Если ChatsListener.IsInitialized Тогда ChatsListener.Remove
Конец субтитра

Частный подмагазин_CollectionChanged (данные как карта)
    Log("Коллекция изменена: " и данные)
    Если Data.IsInitialized Тогда
        Уменьшить параметры как карту = Data.Get("данные")
        Выберите Data.Get("тип")
            Магазин кейсов.TYPE_ADDED
                Тускло слева как логическое значение = ложь
                Если Params.Get("sender_id") == Key.get("uid") Тогда
                    Слева = Истина
                Конец, если
                Chat1.AddItem(Params.Get("сообщение"),Params.Get("отправитель"), Left)
        Конец выбора
    Конец, если
Конец субтитра

Частный дополнительный Firestore_DocumentChanged (данные как карта)
    Если Data.Get("type") == Store.TYPE_MODIFIED Тогда
        Выберите Data.Get("коллекция").
            Дело "delivery_requests"
                Запрос Dim As Map = Data.Get("data")
                DeliveryRequest = запрос
                GetRequestState(request.Get("статус").As(Int))
            Случай "rider_coordinates"
                Dim ride As Map = Data.Get("данные")
' Dim geo As Map = ride.Get("geopoint")
                CameraPosition.Initialize(ride.Get("широта"),ride.Get("долгота"),Zoom)
                Если Marker.IsInitialized == False Тогда
                    Маркер = gmap.AddMarker3(ride.Get("широта"),ride.Get("долгота"),"Rider",FontUtils.FontToBitmap(Chr(0xF21C),False,20,Colors.red))
                Конец, если
                OreebaUtils.AnimateTo(Marker,2000,ride.Get("широта"),ride.Get("долгота"),CameraPosition,gmap)
        Конец выбора
    Конец, если
Конец субтитра
[/КОД]

[CODE lang="b4x" title="Как использовать GetFileurl" Highlight="4,7"]PrescriptionFile = $"prescriptions/${UserID}/${Product.Get("id")}/${FileResult. НастоящееИмя}"$
Storage.UploadFile(FileResult.Dir,FileResult.FileName, $"/${PrescriptionFile}"$)
Ожидание (хранилище) Storage_UploadCompleted (ServerPath как строка, успех как логическое значение)
Store.GetFileurl(PrescriptionFile)
'Результат: https://firebasestorage.googleapis.com/v0/b/project-id.appspot.com/o/prescriptions%2FDj0pOcizCDVqeZk8DssQCmSeXCr1%2FT3yw5j7jgocqFwIVWWQ3%2FIMG-20231022-WA0003.jpg?alt=media
Fields.Put("photo_url",Store.GetFileurl(PrescriptionFile))
Подождите завершения (Store.UpdateDocument("users",DocumentID,Fields)) Complete(m As Map)

Вдохновлено: https://www.b4x.com/android/forum/threads/firestore-api-rest-support.129551/ и https://firebase.google.com/docs/firestore/reference/rest/v1

Журнал изменений :

• v2.12
  • Релиз форума
• v2.52
  • Запросы, коллекции и документы можно хранить для повторного использования.
  • ListenterRegistration обновлен для использования веб-сокетов вместо таймера.

Hello . Can you post a minimal example of a working application? Thank you

 

[Claude Obiri Amadu]

Hello . Can you post a minimal example of a working application? Thank you

Here you go

 

[Mashiane]

Yeah thats why I theres a Remove function
That can be used to disabled the timer when app closes
Will publish an update soon I'm try to store that data so that it can be reused
Sample below:

Store.OfflineMode = True' Every query/get/delete will update a global keystorevalue

'And new data can be fetched via:
Sub Swipe_RefreshRequested
    Store.OfflineMode = False
    wait for (GetCategory) Complete(Result As Object)
    Store.OfflineMode = True
    Swipe.RefreshCompleted    
End Sub

I'm open to suggestions

Hi, why not add functionality for subscriptions rather which are SSE and remove the timer?

Just a thought..

 

[Claude Obiri Amadu]

Hi, why not add functionality for subscriptions rather which are SSE and remove the timer?

Just a thought..

Timer removed in v2.5x
and replaced with Websockets
I have posted a nodejs app you can install on any server that supports nodejs and connect to the firebase library to listen to realtime changes in your database
See #8 https://www.b4x.com/android/forum/threads/b4x-firebasefirestore.156968/post-964654

 

[Claude Obiri Amadu]

Is there a way to move the post to the

Additional libraries, classes and official updates​

 

[Claude Obiri Amadu]

I have updated the index.html file to use auth (signInAnonymously)
for allow read: if request.auth != null; rule.