Example AWS Lambda C# .NET Core 3 (and 2.2) by LambdaNative and CoreRT for optimize cold start

Example for LambdaNative

Dependency

• https://github.com/dotnet/corert
• https://github.com/zaccharles/lambda-native

Step to build and deploy

I'm using Docker for create build environment (Linux) and using AWS ClI deploy to S3

Run Unit test

cd test/aws-lambda-lambdanative.Tests
dotnet test

Create docker for build

docker build -t lambdanative .

Build file and packing to package.zip

sh build_linux.sh

Upload to aws s3

aws s3 cp package.zip s3://[S3-FOLDER] [--profile AWS-PROFILE-NAME]

Go to lambda page and choose upload via s3 url, runtime: custom, handler: up to you

Try to test

Test Result