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AWS Lambda .NET Blueprints

Blueprints are used for setting up new .NET Core projects for AWS Lambda. They are defined in a generic form so that they can be exposed through Visual Studio or Yeoman.


The blueprints are defined in sub directories under the BlueprintDefinitions directory. For each blueprint there is a blueprint-manifest.json file containing the metadata for the blueprint and a src and test directory. It is required that each blueprint must contain a test project.


The .NET Core console application BlueprintPackager is used to package up the blueprints for both Visual Studio and Yeoman. The console application can be run by executing dotnet run in the project directory.

Visual Studio

The BlueprintPackager will write the blueprints to the ../Deployment/Blueprints/VisualStudioBlueprints directory. You can test how your blueprints work in Visual Studio by copying the directory to C:\Program Files (x86)\AWS Tools\HostedFiles\LambdaSampleFunctions\NETCore\v1 and then point AWS Toolkit for Visual Studio to C:\Program Files (x86)\AWS Tools\HostedFiles to get its metadata. To update the toolkit open Visual Studio's Options dialog from the Tools menu, select AWS Toolkit and select "Use local file system location".


To use the blueprints with Yeoman you must first install npm which is part of the Node.js install. Once npm is installed you can install Yeoman by running the following command.

npm install -g yo

To install the current distributed version of the AWS Lambda .NET Core blueprints run the following command.

npm install -g generator-aws-lambda-dotnet

When the BlueprintPackager runs it will copy the Yeoman generator to ../Deployment/Blueprints/generator-aws-lambda-dotnet. To use these blueprints instead of the distributed version execute the command npm link in the directory. To switch back to the distributed version execute the command npm unlink.

To run the Yeoman generator which will allow you to pick a blueprint run the following command.

yo aws-lambda-dotnet