AWS Package a Lambda

The Problem

You have built a .net core based AWS lambda package and now you wish to publish it.

Googling the internet you find that this can be done by running the following script:

dotnet lambda package -o ..\lambda-1.zip

1	dotnet lambda package -o ..\lambda-1.zip

It throws the error: “dotnet : No executeable found matching command “dotnet-lambda”

You Lambda project requires some special tools that provide the lambda packager.

Edit your lambda text file and ensure that the following block exists as an item group

<itemgroup>
    <dotnetclitoolreference include="Amazon.Lambda.Tools" version="2.2.0">
  </dotnetclitoolreference>
</itemgroup>

</dotnetclitoolreference>

</itemgroup>

Restore the packages, (dotnet restore), and retry the “package” command and the lambda should now build and be packed into your lambda-1.zip file.

You can also apply the change by the dotnet cli running the following command

dotnet tool install --global Amazon.Lambda.Tools --version 3.3.1

1	dotnet tool install --global Amazon.Lambda.Tools --version 3.3.1