Workloads do .NET no AWS Lambda

dotnet new -i Amazon.Lambda.Templates

dotnet tool install -g Amazon.Lambda.Tools

dotnet new lambda.EmptyFunction -n HelloEmptyFunction

HelloEmptyFunction
    ├───src
    │   └───HelloEmptyFunction
    │           aws-lambda-tools-defaults.json // The default configuration file
    │           Function.cs // The code for the function
    │           HelloEmptyFunction.csproj // Standard C# project file
    │           Readme.md // A readme file
    │
    └───test
        └───HelloEmptyFunction.Tests
                FunctionTest.cs // The unit tests for the function
                HelloEmptyFunction.Tests.csproj // Standard C# project file

using Amazon.Lambda.Core;

// Assembly attribute to enable the Lambda function's JSON input to be converted into a .NET class.
[assembly: LambdaSerializer(typeof(Amazon.Lambda.Serialization.SystemTextJson.DefaultLambdaJsonSerializer))]

namespace HelloEmptyFunction;

public class Function
{
    
    /// <summary>
    /// A simple function that takes a string and does a ToUpper
    /// </summary>
    /// <param name="input"></param>
    /// <param name="context"></param>
    /// <returns></returns>
    public string FunctionHandler(string input, ILambdaContext context)
    {
        return input.ToUpper();
    }
}

{
  "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": "",
  "configuration": "Release",
  "function-runtime": "dotnet6",
  "function-memory-size": 256,
  "function-timeout": 30,
  "function-handler": "HelloEmptyFunction::HelloEmptyFunction.Function::FunctionHandler"
}

using Xunit;
using Amazon.Lambda.Core;
using Amazon.Lambda.TestUtilities;

namespace HelloEmptyFunction.Tests;

public class FunctionTest
{
    [Fact]
    public void TestToUpperFunction()
    {

        // Invoke the lambda function and confirm the string was upper cased.
        var function = new Function();
        var context = new TestLambdaContext();
        var upperCase = function.FunctionHandler("hello world", context);

        Assert.Equal("HELLO WORLD", upperCase);
    }
}

Waiting for new IAM Role to propagate to AWS regions
...............  Done
New Lambda function created

dotnet lambda invoke-function HelloEmptyFunction --payload "Invoking a Lambda function"

Amazon Lambda Tools for .NET Core applications (5.4.1)
Project Home: https://github.com/aws/aws-extensions-for-dotnet-cli, https://github.com/aws/aws-lambda-dotnet

Payload:
"INVOKING A LAMBDA FUNCTION"

Log Tail:
START RequestId: 3d43c8be-8eca-48a1-9e51-96d9c84947b2 Version: $LATEST
END RequestId: 3d43c8be-8eca-48a1-9e51-96d9c84947b2
REPORT RequestId: 3d43c8be-8eca-48a1-9e51-96d9c84947b2  Duration: 244.83 ms      Billed Duration: 245 ms                                                                                                                  
Memory Size: 256 MB      Max Memory Used: 68 MB      Init Duration: 314.32 ms

context.Logger.LogInformation("Input: " + input);

dotnet lambda deploy-function HelloEmptyFunction

dotnet lambda invoke-function HelloEmptyFunction --payload "Invoking a Lambda function" 

Payload:
"INVOKING A LAMBDA FUNCTION"

Log Tail:
START RequestId: 7f77a371-c183-494f-bb44-883fe0c57471 Version: $LATEST
2022-06-03T15:36:20.238Z        7f77a371-c183-494f-bb44-883fe0c57471    info    Input: Invoking a Lambda function
END RequestId: 7f77a371-c183-494f-bb44-883fe0c57471
REPORT RequestId: 7f77a371-c183-494f-bb44-883fe0c57471  Duration: 457.22 ms     Billed Duration: 458 ms                                                                                                       
Memory Size: 256 MB      Max Memory Used: 62 MB  Init Duration: 262.12 ms

dotnet new lambda.EmptyFunction -n HelloPersonFunction

public string FunctionHandler(Person input, ILambdaContext context)
{
    return $"Hello, {input.FirstName} {input.LastName}";
}

public class Person 
{
    public string FirstName { get; init; }
    public string LastName { get; init; }  
}

dotnet lambda deploy-function HelloPersonFunction

dotnet lambda invoke-function HelloPersonFunction --payload '{ \"FirstName\": \"Alan\", \"LastName\": \"Adams\" }'

dotnet lambda invoke-function HelloPersonFunction --payload "{ \"FirstName\": \"Alan\", \"LastName\": \"Adams\" }"

{
  "FirstName": "Alan",
  "LastName": "Adams"
}

dotnet new serverless.AspNetCoreWebAPI -n HelloAspNetCoreWebAPI

aws s3api create-bucket --bucket your-unique-bucket-name1234 

aws s3api create-bucket --bucket your-unique-bucket-name1234 --create-bucket-configuration LocationConstraint=REGION

aws s3api create-bucket --bucket lambda-course-2022 

dotnet lambda deploy-serverless

Enter CloudFormation Stack Name: (CloudFormation stack name for an AWS Serverless application)

..snip
... zipping: AspNetCoreWebAPI.runtimeconfig.json
... zipping: aws-lambda-tools-defaults.json
Created publish archive (C:\Users\someuser\AppData\Local\Temp\AspNetCoreFunction-CodeUri-Or-ImageUri-637907144179228995.zip).
Lambda project successfully packaged: C:\Users\ someuser\AppData\Local\Temp\AspNetCoreFunction-CodeUri-Or-ImageUri-637907144179228995.zip
Uploading to S3. (Bucket: lambda-course-2022 Key: AspNetCoreWebAPI/AspNetCoreFunction-CodeUri-Or-ImageUri-637907144179228995-637907144208759417.zip)
... Progress: 100%

Uploading to S3. (Bucket: lambda-course-2022 Key: AspNetCoreWebAPI/AspNetCoreWebAPI-serverless-637907144211067892.template)
... Progress: 100%
Found existing stack: False
CloudFormation change set created
... Waiting for change set to be reviewed
Created CloudFormation stack AspNetCoreWebAPI

Timestamp            Logical Resource Id                      Status
-------------------- ---------------------------------------- ---------------------------------------- 
6/10/2022 09:53 AM   AspNetCoreWebAPI                         CREATE_IN_PROGRESS
6/10/2022 09:53 AM   AspNetCoreFunctionRole                   CREATE_IN_PROGRESS
6/10/2022 09:53 AM   AspNetCoreFunctionRole                   CREATE_IN_PROGRESS
6/10/2022 09:54 AM   AspNetCoreFunctionRole                   CREATE_COMPLETE
6/10/2022 09:54 AM   AspNetCoreFunction                       CREATE_IN_PROGRESS
6/10/2022 09:54 AM   AspNetCoreFunction                       CREATE_IN_PROGRESS
6/10/2022 09:54 AM   AspNetCoreFunction                       CREATE_COMPLETE
6/10/2022 09:54 AM   ServerlessRestApi                        CREATE_IN_PROGRESS
6/10/2022 09:54 AM   ServerlessRestApi                        CREATE_IN_PROGRESS
6/10/2022 09:54 AM   ServerlessRestApi                        CREATE_COMPLETE
6/10/2022 09:54 AM   ServerlessRestApiDeploymentcfb7a37fc3    CREATE_IN_PROGRESS
6/10/2022 09:54 AM   AspNetCoreFunctionProxyResourcePermissionProd CREATE_IN_PROGRESS
6/10/2022 09:54 AM   AspNetCoreFunctionRootResourcePermissionProd CREATE_IN_PROGRESS
6/10/2022 09:54 AM   AspNetCoreFunctionProxyResourcePermissionProd CREATE_IN_PROGRESS
6/10/2022 09:54 AM   AspNetCoreFunctionRootResourcePermissionProd CREATE_IN_PROGRESS
6/10/2022 09:54 AM   ServerlessRestApiDeploymentcfb7a37fc3    CREATE_IN_PROGRESS
6/10/2022 09:54 AM   ServerlessRestApiDeploymentcfb7a37fc3    CREATE_COMPLETE
6/10/2022 09:54 AM   ServerlessRestApiProdStage               CREATE_IN_PROGRESS
6/10/2022 09:54 AM   ServerlessRestApiProdStage               CREATE_IN_PROGRESS
6/10/2022 09:54 AM   ServerlessRestApiProdStage               CREATE_COMPLETE
6/10/2022 09:54 AM   AspNetCoreFunctionProxyResourcePermissionProd CREATE_COMPLETE
6/10/2022 09:54 AM   AspNetCoreFunctionRootResourcePermissionProd CREATE_COMPLETE
6/10/2022 09:54 AM   AspNetCoreWebAPI                         CREATE_COMPLETE
Stack finished updating with status: CREATE_COMPLETE

Output Name                    Value
------------------------------ --------------------------------------------------
ApiURL                         https://xxxxxxxxx.execute-api.us-east-1.amazonaws.com/Prod/

aws cloudformation describe-stack-resources --stack-name AspNetCoreWebAPI

aws cloudformation describe-stack-resources --stack-name AspNetCoreWebAPI --query 'StackResources[].[{ResourceType:ResourceType, LogicalResourceId:LogicalResourceId, PhysicalResourceId:PhysicalResourceId}]'

dotnet lambda delete-function HelloEmptyFunction  
dotnet lambda delete-function HelloPersonFunction

dotnet lambda delete-serverless AspNetCoreWebAPI

[assembly: LambdaSerializer(typeof(Amazon.Lambda.Serialization.SystemTextJson.DefaultLambdaJsonSerializer))]