Run your ASP.NET Minimal API on AWS Lambda in 10 minutes

Рет қаралды 3,067

Күн бұрын

ASP.NET is a powerful technology for building web applications in .NET. .NET 6 introduce a new way of defining your API's, using the minimal API syntax. Minimal API's simplify the definition of your API endpoints and handlers.
AWS provides tooling to run your ASP.NET minimal API on AWS Lambda by adding a single line of code to your existing application. The additional code allows the same code to run on both using the Kestrel web server and with AWS Lambda when deployed into the Lambda environment.
In this video we walk through how to take an out of the box ASP.NET minimal API and deploy that on to AWS Lambda.
00:00 - Introduction
00:30 - Create a new minimal API
01:40 - Install Nuget package
02:10 - Add additional startup code
04:00 - AWS Lambda .NET Global CLI
05:10 - Deploy Function wizard
07:40 - API Gateway Configuration
09:40 - Performance
Links
Install SAM CLI - docs.aws.amazon.com/serverles...
Install .NET 6 - dotnet.microsoft.com/en-us/do...
Amazon.Lambda.AspNetCoreServer - github.com/aws/aws-lambda-dot...
Minimal API's - learn.microsoft.com/en-us/asp...
Benchmarks - github.com/aws-samples/server...
Twitter - / plantpowerjames
LinkedIn - / james-eastham
Website - serverlessdotnet.dev

Пікірлер: 8

@bo44arov Жыл бұрын

thanks for this tutorial! really useful!

@serverlessjames Жыл бұрын

You're welcome!

@markcoleman8579 Жыл бұрын

Great video James. Any chance you can increase the font size in future videos so that they're easier to view on a tablet?

@serverlessjames Жыл бұрын

Yes, absolutely. That's great feedback thanks Mark 👍

@hki6mq Жыл бұрын

Hey James, any advice on how to deploy this using CDK?

@serverlessjames Жыл бұрын

There's a great blog post on the AWS blogs that talk through how to deploy .NET with the CDK ☺️ aws.amazon.com/blogs/modernizing-with-aws/build-package-publish-dotnet-csharp-lambda-functions-aws-cdk/

@stavvers Жыл бұрын

Hey James, great video. Question, I have done everything apart from set up a proxy. When I try to access the weatherforecast route I get a 404 and the following error when invoking from visual studio { "errorType": "NullReferenceException", "errorMessage": "Object reference not set to an instance of an object.", "stackTrace": [ "at Amazon.Lambda.AspNetCoreServer.APIGatewayHttpApiV2ProxyFunction.MarshallRequest(InvokeFeatures features, APIGatewayHttpApiV2ProxyRequest apiGatewayRequest, ILambdaContext lambdaContext)", "at Amazon.Lambda.AspNetCoreServer.AbstractAspNetCoreFunction`2.FunctionHandlerAsync(TREQUEST request, ILambdaContext lambdaContext)", "at Amazon.Lambda.RuntimeSupport.HandlerWrapper.c__DisplayClass26_0`2.d.MoveNext()", "--- End of stack trace from previous location ---", "at Amazon.Lambda.RuntimeSupport.LambdaBootstrap.InvokeOnceAsync(CancellationToken cancellationToken)" ] } Is this due to the proxy not being set up?

@serverlessjames Жыл бұрын

Great question Andy! What exactly are you passing as the input payload when you're invoking the function from Visual Studio? Under the hood, the AWS tooling is translating what it's expecting to be an API Gateway input payload into a request it can pass to ASP.NET (that's what the marshall request method does). If you invoke the function with say, a string of 'Hello World' that deseriailzed object will be null, causing an object reference error. If you @ me on twitter I can send a quick video