feat: sharding + queue + batch insert

.dockerignore

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+**/.classpath
+**/.dockerignore
+**/.env
+**/.git
+**/.gitignore
+**/.project
+**/.settings
+**/.toolstarget
+**/.vs
+**/.vscode
+**/*.*proj.user
+**/*.dbmdl
+**/*.jfm
+**/azds.yaml
+**/bin
+**/charts
+**/docker-compose*
+**/Dockerfile*
+**/node_modules
+**/npm-debug.log
+**/obj
+**/secrets.dev.yaml
+**/values.dev.yaml
+LICENSE
+README.md
+!**/.gitignore
+!.git/HEAD
+!.git/config
+!.git/packed-refs
+!.git/refs/heads/**

.gitignore

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+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+
+# User-specific files
+*.suo
+*.user
+*.sln.docstates
+
+# Build results
+.vs/
+[Dd]ebug/
+[Rr]elease/
+x64/
+[Bb]in/
+[Oo]bj/
+
+# MSTest test Results
+[Tt]est[Rr]esult*/
+[Bb]uild[Ll]og.*
+
+*_i.c
+*_p.c
+*_i.h
+*.ilk
+*.meta
+*.obj
+*.pch
+*.pdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.tmp_proj
+*.log
+*.vspscc
+*.vssscc
+.builds
+*.pidb
+*.log
+*.svclog
+*.scc
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opensdf
+*.sdf
+*.cachefile
+
+# Visual Studio profiler
+*.psess
+*.vsp
+*.vspx
+
+# Guidance Automation Toolkit
+*.gpState
+
+# ReSharper is a .NET coding add-in
+_ReSharper*/
+*.[Rr]e[Ss]harper
+*.DotSettings.user
+
+# Click-Once directory
+publish/
+
+# Publish Web Output
+*.Publish.xml
+*.pubxml
+*.azurePubxml
+
+# NuGet Packages Directory
+## TODO: If you have NuGet Package Restore enabled, uncomment the next line
+packages/
+## TODO: If the tool you use requires repositories.config, also uncomment the next line
+!packages/repositories.config
+
+# Windows Azure Build Output
+csx/
+*.build.csdef
+
+# Windows Store app package directory
+AppPackages/
+
+# Others
+sql/
+*.Cache
+ClientBin/
+[Ss]tyle[Cc]op.*
+![Ss]tyle[Cc]op.targets
+~$*
+*~
+*.dbmdl
+*.[Pp]ublish.xml
+
+*.publishsettings
+
+# RIA/Silverlight projects
+Generated_Code/
+
+# Backup & report files from converting an old project file to a newer
+# Visual Studio version. Backup files are not needed, because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+UpgradeLog*.htm
+
+# SQL Server files
+App_Data/*.mdf
+App_Data/*.ldf
+
+# =========================
+# Windows detritus
+# =========================
+
+# Windows image file caches
+Thumbs.db
+ehthumbs.db
+
+# Folder config file
+Desktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Mac desktop service store files
+.DS_Store
+
+_NCrunch*

Account.cs

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+namespace RinhaPessimisticLockingApi
+{
+    public class Account
+    {
+        public int Limite;
+        public int Saldo;
+
+        public Account(int limite, int saldo)
+        {
+            Limite = limite;
+            Saldo = saldo;
+        }
+    }
+
+    public class SaldoView
+    {
+        public int Limite { get; set; }
+        public int Total { get; set; }
+        public string data_extrato { get; set; }
+    }
+
+    public class AccountView
+    {
+        public SaldoView Saldo { get; set; }
+        public List<TransactionView> ultimas_transacoes { get; set; }
+
+        public AccountView(int limite, int saldo, string data_extrato)
+        {
+            Saldo = new SaldoView
+            {
+                Limite = limite,
+                Total = saldo,
+                data_extrato = data_extrato,
+            };
+
+            ultimas_transacoes = new List<TransactionView>();
+        }
+    }
+
+    public class TransactionView
+    {
+        public int? Valor { get; set; }
+        public String? Tipo { get; set; }
+        public String? Descricao { get; set; }
+        public String? realizada_em { get; set; }
+
+    }
+}

Dockerfile

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+#See https://aka.ms/customizecontainer to learn how to customize your debug container and how Visual Studio uses this Dockerfile to build your images for faster debugging.
+
+FROM mcr.microsoft.com/dotnet/aspnet:8.0 AS base
+USER app
+WORKDIR /app
+EXPOSE 8080
+
+FROM mcr.microsoft.com/dotnet/sdk:8.0 AS build
+ARG BUILD_CONFIGURATION=Release
+WORKDIR /src
+COPY ["Sharding.csproj", "."]
+RUN dotnet restore "./././Sharding.csproj"
+COPY . .
+WORKDIR "/src/."
+RUN dotnet build "./Sharding.csproj" -c $BUILD_CONFIGURATION -o /app/build
+
+FROM build AS publish
+ARG BUILD_CONFIGURATION=Release
+RUN dotnet publish "./Sharding.csproj" -c $BUILD_CONFIGURATION -o /app/publish /p:UseAppHost=false
+
+FROM base AS final
+WORKDIR /app
+COPY --from=publish /app/publish .
+ENTRYPOINT ["dotnet", "Sharding.dll"]

ExceptionHandler.cs

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+using Microsoft.AspNetCore.Mvc;
+using System.Net;
+
+namespace RinhaPessimisticLockingApi
+{
+    public class ExceptionToProblemDetailsHandler : Microsoft.AspNetCore.Diagnostics.IExceptionHandler
+    {
+        public async ValueTask<bool> TryHandleAsync(HttpContext httpContext, Exception exception, CancellationToken cancellationToken)
+        {
+            httpContext.Response.StatusCode = (int)HttpStatusCode.BadRequest;
+            await httpContext.Response.WriteAsJsonAsync(new ProblemDetails
+            {
+                Title = "An error occurred",
+                Detail = exception.Message,
+                Type = exception.GetType().Name,
+                Status = (int)HttpStatusCode.BadRequest
+            }, cancellationToken: cancellationToken);
+
+            return true;
+        }
+    }
+}