aws-lambda-tools-defaults.json

{
	"Information" : [
		"This file provides default values for the deployment wizard inside Visual Studio and the AWS Lambda commands added to the .NET Core CLI.",
		"To learn more about the Lambda commands with the .NET Core CLI execute the following command at the command line in the project root directory.",

		"dotnet lambda help",

		"All the command line options for the Lambda command can be specified in this file."
	],
	
    "profile":"",
    "region" : "us-east-1",
	"configuration" : "Release",
	"framework"     : "netcoreapp2.0"
}

AWSServerlessApiTest.csproj

<Project Sdk="Microsoft.NET.Sdk.Web">

  <PropertyGroup>
    <TargetFramework>netcoreapp2.0</TargetFramework>
    <GenerateRuntimeConfigurationFiles>true</GenerateRuntimeConfigurationFiles>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="Microsoft.AspNetCore.All" Version="2.0.3" />
    <PackageReference Include="AWSSDK.Extensions.NETCore.Setup" Version="3.3.4" />
    <PackageReference Include="Amazon.Lambda.AspNetCoreServer" Version="2.0.2" />
    <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="2.0.2" />
  </ItemGroup>

  <ItemGroup>
    <DotNetCliToolReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Tools" Version="2.0.1" />
    <DotNetCliToolReference Include="Amazon.Lambda.Tools" Version="2.1.1" />
  </ItemGroup>

  <ItemGroup>
    <ProjectReference Include="..\AWSServerlessApiTest.Data\AWSServerlessApiTest.Data.csproj" />
  </ItemGroup>

</Project>

LambdaEntryPoint.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Hosting;
using System.IO;

namespace AWSServerlessApiTest
{
    /// <summary>
    /// This class extends from APIGatewayProxyFunction which contains the method FunctionHandlerAsync which is the 
    /// actual Lambda function entry point. The Lambda handler field should be set to
    /// 
    /// AWSServerlessApiTest::AWSServerlessApiTest.LambdaEntryPoint::FunctionHandlerAsync
    /// </summary>
    public class LambdaEntryPoint : Amazon.Lambda.AspNetCoreServer.APIGatewayProxyFunction
    {
        /// <summary>
        /// The builder has configuration, logging and Amazon API Gateway already configured. The startup class
        /// needs to be configured in this method using the UseStartup<>() method.
        /// </summary>
        /// <param name="builder"></param>
        protected override void Init(IWebHostBuilder builder)
        {
            builder
                .UseStartup<Startup>();
        }
    }
}

LocalEntryPoint.cs

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore;
using Microsoft.AspNetCore.Hosting;

namespace AWSServerlessApiTest
{
    /// <summary>
    /// The Main function can be used to run the ASP.NET Core application locally using the Kestrel webserver.
    /// </summary>
    public class LocalEntryPoint
    {
        public static void Main(string[] args)
        {
            BuildWebHost(args).Run();
        }

        public static IWebHost BuildWebHost(string[] args) =>
            WebHost.CreateDefaultBuilder(args)
                .UseStartup<Startup>()
                .Build();
    }
}