How to create a Lambda DotNet for Razor with Webassembly @rendermode InteractiveWebAssembly

[genifycom]

Ref doc:
Integrate ASP.NET Core Razor components into ASP.NET Core apps
https://learn.microsoft.com/en-us/aspnet/core/blazor/components/integration?view=aspnetcore-8.0

In DotNet 8, we can now create a Blazor Web App with Interactive render mode WebAssembly. My goal is to get this working in Lambda Dotnet with the same functionality.

This creates two projects. A Web Application and a Blazor WASM application.

This allows us to deploy both a web app and wasm with each available as required.

I created the equivalent Lambda DotNet Application with a project dependency on the Blazor WASM project.

Two of the components are Server side rendered Home and Weather and these work fine in Lambda as expected as there is no WASM involved (this is just using Server Side Rendering).

The Counter component is in the Blazor WASM project and will be packaged up as .wasm (not .dll).

The issue I have is getting the publish for AWS Lambda working.

I get the following:

Processing CloudFormation resource AspNetCoreApi
Processing CloudFormation resource AspNetCoreFunction
Initiate packaging of . for resource AspNetCoreFunction
Executing publish command
... invoking 'dotnet publish', working folder 'C:\Dev\yyy\CSRInLambda\CSRServerless\.\bin\Release\net8.0\publish'
... dotnet publish "C:\Dev\yyy\CSRInLambda\CSRServerless\." --output "C:\Dev\yyy\CSRInLambda\CSRServerless\.\bin\Release\net8.0\publish" --configuration "Release" --framework "net8.0" /p:GenerateRuntimeConfigurationFiles=true --runtime linux-x64 --self-contained False 
... publish: MSBuild version 17.9.6+a4ecab324 for .NET
... publish:   Determining projects to restore...
... publish:   Restored C:\Dev\yyy\CSRInLambda\CSRServerless\CSRServerless.csproj (in 519 ms).
... publish:   1 of 2 projects are up-to-date for restore.
... publish: C:\Users\xxx\.nuget\packages\microsoft.net.sdk.webassembly.pack\8.0.3\build\Microsoft.NET.Sdk.WebAssembly.Browser.targets(231,5): error WASM0005: Unable to resolve WebAssembly runtime pack version [C:\Dev\yyy\CSRInLambda\CSRInLambda\CSRInLambda.Client\CSRInLambda.Client.csproj]
ERROR: The dotnet publish command return unsuccessful error code
Error packaging up project in C:\Dev\yyy\CSRInLambda\CSRServerless\. for CloudFormation resource AspNetCoreFunction: ERROR: The dotnet publish command return unsuccessful error code

Does anyone know how to package up the DotNet wasm environment for lambda?

I really hope to get this going as then we can run server side and client side components from the same Lambda DotNet serverless environment.

Thank you for any assistance.

[genifycom]

I have opened this issue in AWS Toolkit for Visual Studio to see if I can get some help there.

[github-actions[bot]]

Hello! Reopening this discussion to make it searchable.