mycorerepository/MyCore.Framework/Business/FirebaseClient.cs

using FirebaseAdmin;
using FirebaseAdmin.Messaging;
using Google.Apis.Auth.OAuth2;
//using Google.Cloud.Firestore;
//using Google.Cloud.Firestore.V1;
//using Grpc.Auth;
//using Grpc.Core;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace MyCore.Framework.Business
{
    public class FirebaseClient
    {
        //public FirestoreDb _firestore;
        public FirebaseClient(string computeCredsJson, string firebaseCredsJson, string project)
        {
            var _credential = GoogleCredential.FromJson(computeCredsJson);
            if (_credential.IsCreateScopedRequired)
            {
                //_credential = _credential.CreateScoped(FirestoreClient.DefaultScopes);
            }

            //Channel channel = new Channel(FirestoreClient.DefaultEndpoint.ToString(), _credential.ToChannelCredentials());
            //FirestoreClient client = FirestoreClient.Create(channel);
            //_firestore = FirestoreDb.CreateAsync(project, client).GetAwaiter().GetResult();

            if (FirebaseApp.DefaultInstance == null)
            {
                try{
                    FirebaseApp.Create(new AppOptions()
                    {
                        Credential = GoogleCredential.FromJson(firebaseCredsJson),
                        ProjectId = project,
                        //ServiceAccountId = firebaseCredsJson["client_email"]
                    });
                } catch(Exception e)
                {
                }
            }
        }
    }
}