Создал проект

.gitignore

+bin/
+obj/
+/packages/
+riderModule.iml
+/_ReSharper.Caches/
+.idea
\ No newline at end of file

Payments/Payment.WebApi/Payment.WebApi.csproj

+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+    <PropertyGroup>
+        <TargetFramework>net6.0</TargetFramework>
+        <Nullable>enable</Nullable>
+        <ImplicitUsings>enable</ImplicitUsings>
+    </PropertyGroup>
+
+    <ItemGroup>
+        <PackageReference Include="Swashbuckle.AspNetCore" Version="6.2.3" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <Folder Include="Controllers" />
+    </ItemGroup>
+
+</Project>

Payments/Payment.WebApi/Program.cs

+var builder = WebApplication.CreateBuilder(args);
+
+// Add services to the container.
+
+builder.Services.AddControllers();
+// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
+builder.Services.AddEndpointsApiExplorer();
+builder.Services.AddSwaggerGen();
+
+var app = builder.Build();
+
+// Configure the HTTP request pipeline.
+if (app.Environment.IsDevelopment())
+{
+    app.UseSwagger();
+    app.UseSwaggerUI();
+}
+
+app.UseHttpsRedirection();
+
+app.UseAuthorization();
+
+app.MapControllers();
+
+app.Run();
\ No newline at end of file

Payments/Payment.WebApi/Properties/launchSettings.json

+{
+  "$schema": "https://json.schemastore.org/launchsettings.json",
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:18522",
+      "sslPort": 44352
+    }
+  },
+  "profiles": {
+    "Payment.WebApi": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "applicationUrl": "https://localhost:7280;http://localhost:5135",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

Payments/Payment.WebApi/appsettings.Development.json

+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}

Payments/Payment.WebApi/appsettings.json

+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*"
+}

Payments/Payments.sln

+
+Microsoft Visual Studio Solution File, Format Version 12.00
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Payment.WebApi", "Payment.WebApi\Payment.WebApi.csproj", "{8CA9047E-099A-4BAA-A2CB-1323720B2D78}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{8CA9047E-099A-4BAA-A2CB-1323720B2D78}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{8CA9047E-099A-4BAA-A2CB-1323720B2D78}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{8CA9047E-099A-4BAA-A2CB-1323720B2D78}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{8CA9047E-099A-4BAA-A2CB-1323720B2D78}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal