Ensure the function in aws-node-express-dynamodb-api example to be idempotent

.editorconfig

@@ -0,0 +1,17 @@
+# EditorConfig helps developers define and maintain consistent
+# coding styles between different editors and IDEs
+# editorconfig.org
+
+root = true
+
+
+[*]
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+indent_style = space
+indent_size = 2
+
+[*.{diff,md}]
+trim_trailing_whitespace = false

.eslintrc.json

@@ -1,10 +1,12 @@
 {
+  "root": true,
   "extends": "airbnb-base",
   "env": {
     "node": true
   },
   "rules": {
     "strict": "off",
+    "no-console": "off",
     "import/no-unresolved": "off"
   }
 }

.github/pull_request_template.md

@@ -0,0 +1,9 @@
+<!-- Hi there ⊂◉‿◉つ
+
+Thanks for submitting a PR! We're excited to see what you've got for us!
+
+Make sure to lint your code to match the rest of the repo.
+
+Run `npm run lint` to lint
+
+-->

.gitignore

@@ -10,7 +10,7 @@ coverage
 .grunt
 .lock-wscript
 node_modules
-**/.idea
+.idea
 .DS_Store
 .tmp
 .env
@@ -20,3 +20,8 @@ env.json
 admin.env
 tmp
 *.pyc
+*.swp
+*.swo
+vendor
+./bin/Debug/netcoreapp2.1/
+./bin/release/netcoreapp2.1/

.travis.yml

@@ -7,4 +7,6 @@ install:
   - npm install
 
 script:
-  - npm run lint
+  - npm run docs
+  - npm run validate
+  - ./check-if-readme-is-up-to-date.sh

LICENSE.txt

@@ -0,0 +1,33 @@
+The MIT License (MIT)
+
+Copyright (c) 2017 Serverless, Inc. http://www.serverless.com
+
+The following license applies to all parts of this software except as
+documented below:
+
+====
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+====
+
+All files located in the node_modules and external directories are
+externally maintained libraries used by this software which have their
+own licenses; we recommend you read them, as their terms may differ from
+the terms above.

aws-dotnet-rest-api-with-dynamodb/.gitignore

@@ -0,0 +1,38 @@
+git node_modules
+.serverless
+*.swp
+*.*~
+project.lock.json
+.DS_Store
+*.pyc
+nupkg/
+
+# Visual Studio Code
+.vscode
+
+# User-specific files
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# Build results
+[Dd]ebug/
+[Dd]ebugPublic/
+[Rr]elease/
+[Rr]eleases/
+x64/
+x86/
+build/
+bld/
+[Bb]in/
+[Oo]bj/
+[Oo]ut/
+msbuild.log
+msbuild.err
+msbuild.wrn
+
+# Visual Studio 2015
+.vs/
+
+env.configs.yml

aws-dotnet-rest-api-with-dynamodb/DotNetServerless.sln

@@ -0,0 +1,71 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 15
+VisualStudioVersion = 15.0.26124.0
+MinimumVisualStudioVersion = 15.0.26124.0
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{E45346EE-74B7-4F5B-943C-FEFDE57124D0}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "tests", "tests", "{DBC29D13-84FE-4A90-B785-E325BDD494A8}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DotNetServerless.Lambda", "src\DotNetServerless.Lambda\DotNetServerless.Lambda.csproj", "{9A74B45A-50B6-44C8-A2D7-F7778A61F18F}"
+EndProject
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+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DotNetServerless.Application", "src\DotNetServerless.Application\DotNetServerless.Application.csproj", "{8F0BB856-4F83-4898-ACC7-68D672386742}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
+		Release|Any CPU = Release|Any CPU
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{9A74B45A-50B6-44C8-A2D7-F7778A61F18F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{9A74B45A-50B6-44C8-A2D7-F7778A61F18F}.Debug|Any CPU.Build.0 = Debug|Any CPU
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+		{045DC8E9-8CA6-4B76-9C4A-781AB9589700}.Release|x86.Build.0 = Release|Any CPU
+		{8F0BB856-4F83-4898-ACC7-68D672386742}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{8F0BB856-4F83-4898-ACC7-68D672386742}.Debug|Any CPU.Build.0 = Debug|Any CPU
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+	EndGlobalSection
+EndGlobal

aws-dotnet-rest-api-with-dynamodb/README.MD

@@ -0,0 +1,45 @@
+<!--
+title: 'Dot Net REST API with DynamoDB'
+description: 'Setup a REST API w/ DynamoDB using Dot Net Core 2.1'
+framework: v1
+platform: AWS
+language: CSharp
+priority: 10
+authorLink: 'https://github.com/samueleresca'
+authorName: 'Samuele Resca'
+authorAvatar: 'https://avatars0.githubusercontent.com/u/8921095?v=4&s=140'
+-->
+
+# DotNetServerless
+
+The following AWS lambda is built in .NET Core 2.1
+
+
+## Configure lambda
+
+It is possible configure the lambda by editing the `env.config.yml` file:
+
+```
+feature: <feature_name>
+version: 1.0.0.0
+region: <aws_region>
+environment: <environment>
+accountId: <aws_account_id>
+dynamoTable: <dynamo_table_name>
+```
+
+## Run 
+
+The project contains a `package.json` file with the following commands:
+
+```
+npm run tests
+```
+
+```
+npm run build
+```
+
+```
+npm run deploy
+```

aws-dotnet-rest-api-with-dynamodb/src/DotNetServerless.Application/DotNetServerless.Application.csproj

@@ -0,0 +1,16 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netstandard2.0</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="AWSSDK.DynamoDBv2" Version="3.3.14.12" />
+    <PackageReference Include="MediatR" Version="5.1.0" />
+    <PackageReference Include="MediatR.Extensions.Microsoft.DependencyInjection" Version="5.1.0" />
+    <PackageReference Include="AWSSDK.Core" Version="3.3.29.3" />
+    <PackageReference Include="AWSSDK.Core" Version="3.3.29.3" />
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="2.1.1.0" />
+    <PackageReference Include="Newtonsoft.Json" Version="11.0.1" />
+  </ItemGroup>
+</Project>

aws-dotnet-rest-api-with-dynamodb/src/DotNetServerless.Application/Entities/Item.cs

@@ -0,0 +1,16 @@
+using Amazon.DynamoDBv2.DataModel;
+
+namespace DotNetServerless.Application.Entities
+{
+  public class Item
+  {
+    [DynamoDBHashKey]
+    public string Id { get; set; }
+    [DynamoDBRangeKey]
+    public string Code { get; set; }
+    [DynamoDBProperty]
+    public string Description { get; set; }
+    [DynamoDBProperty]
+    public bool IsChecked { get; set; }
+  }
+}

aws-dotnet-rest-api-with-dynamodb/src/DotNetServerless.Application/Handlers/CreateItemHandler.cs

@@ -0,0 +1,30 @@
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+using DotNetServerless.Application.Entities;
+using DotNetServerless.Application.Infrastructure.Repositories;
+using DotNetServerless.Application.Requests;
+using MediatR;
+
+namespace DotNetServerless.Application.Handlers
+{
+  public class CreateItemHandler : IRequestHandler<CreateItemRequest, Item>
+  {
+    private readonly IItemRepository _itemRepository;
+
+    public CreateItemHandler(IItemRepository itemRepository)
+    {
+      _itemRepository = itemRepository;
+    }
+
+    public async Task<Item> Handle(CreateItemRequest request, CancellationToken cancellationToken)
+    {
+      var item = request.Map();
+      item.Id = Guid.NewGuid().ToString();
+
+      await _itemRepository.Save(item, cancellationToken);
+
+      return item;
+    }
+  }
+}

aws-dotnet-rest-api-with-dynamodb/src/DotNetServerless.Application/Handlers/GetItemHandler.cs

@@ -0,0 +1,27 @@
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+using DotNetServerless.Application.Entities;
+using DotNetServerless.Application.Infrastructure.Repositories;
+using DotNetServerless.Application.Requests;
+using MediatR;
+
+namespace DotNetServerless.Application.Handlers
+{
+  public class GetItemHandler : IRequestHandler<GetItemRequest, Item>
+  {
+    private readonly IItemRepository _itemRepository;
+
+    public GetItemHandler(IItemRepository itemRepository)
+    {
+      _itemRepository = itemRepository;
+    }
+
+
+    public async Task<Item> Handle(GetItemRequest request, CancellationToken cancellationToken)
+    {
+      var result = await _itemRepository.GetById<Item>(request.Id.ToString(), cancellationToken);
+      return result.FirstOrDefault();
+    }
+  }
+}

aws-dotnet-rest-api-with-dynamodb/src/DotNetServerless.Application/Handlers/UpdateItemHandler.cs

@@ -0,0 +1,26 @@
+using System.Threading;
+using System.Threading.Tasks;
+using DotNetServerless.Application.Entities;
+using DotNetServerless.Application.Infrastructure.Repositories;
+using DotNetServerless.Application.Requests;
+using MediatR;
+
+namespace DotNetServerless.Application.Handlers
+{
+  public class UpdateItemHandler : IRequestHandler<UpdateItemRequest, Item>
+  {
+    private readonly IItemRepository _itemRepository;
+
+    public UpdateItemHandler(IItemRepository itemRepository)
+    {
+      _itemRepository = itemRepository;
+    }
+
+    public async Task<Item> Handle(UpdateItemRequest request, CancellationToken cancellationToken)
+    {
+      var item = request.Map();
+      await _itemRepository.Save(item, cancellationToken);
+      return item;
+    }
+  }
+}