dotnet7

Even though Native AOT on .NET 7 doesn’t support ASP.NET Core applications yet, you can use AWS Lambda functions with Native AOT to easily handle HTTP requests.

The release of .NET 7 brings with it a new way to compile and run .NET code - native AOT compilation. This post compares the cold start time of a Lambda function running on .NET 7 after native AOT compilation with the cold start time of a Lambda function running on .NET 6 with the managed runtime. The results are surprisingly good.

You can’t yet run .NET 7 on AWS Lambda functions with the familiar managed runtime, but you can with a custom runtime. Here are the few small steps you need.