Upgrade Lambda Serverless ASP.NET Core Web API to .NET Core 2.2 with custom runtime

[michaeldimoudis]

No description provided.

[attilah]

When I tried to run .Net Core 3.0 Preview 5 I got TypeInitializationException about "System.Marvin". Did you try this given version?

[kevinjpetersen]

@attilah I'm getting the same error. Did you ever solve your issue?

[attilah]

@kevinjpetersen no...I rolled back to 2.2. If you search for this error you can find some instances of it in the past and I did not want to go down the rabbit hole, I'll retry with the next release...

[michaeldimoudis]

There's a breaking change with .NET Core 3.0, more details can be found here aws/aws-lambda-dotnet#481

[vdesplanque]

Hi,

I try to implement what you did in this PR, but I'm not able to find "LambdaEntryPoint" class.
I added the NuGet package Amazon.Lambda.RuntimeSupport, with no luck.

Where can I find this type ?

Thank you,
Valentin

[michaeldimoudis]

Hi,

I try to implement what you did in this PR, but I'm not able to find "LambdaEntryPoint" class.
I added the NuGet package Amazon.Lambda.RuntimeSupport, with no luck.

Where can I find this type ?

Thank you,
Valentin

https://github.com/michaeldimoudis/aspnetcore-22-webapi-lambda-serverless/blob/master/AWSServerless1/LambdaEntryPoint.cs

[vdesplanque]

Hi,
I try to implement what you did in this PR, but I'm not able to find "LambdaEntryPoint" class.
I added the NuGet package Amazon.Lambda.RuntimeSupport, with no luck.
Where can I find this type ?
Thank you,
Valentin

https://github.com/michaeldimoudis/aspnetcore-22-webapi-lambda-serverless/blob/master/AWSServerless1/LambdaEntryPoint.cs

Ok, I thought it was some class embedded in AWS package.
I managed to publish my lambda to aws, but I ran in another problem :

"Runtime failed to start: fork/exec /var/task/bootstrap: permission denied"

Have you encountered this kind of problem ?

Valentin

[pprzybylski-metapack]

Hi, I'm getting the following error when tried to test lambda from this repository:

{
  "errorType": "NullReferenceException",
  "errorMessage": "Object reference not set to an instance of an object.",
  "stackTrace": [
    "at Amazon.Lambda.AspNetCoreServer.APIGatewayProxyFunction.MarshallRequest(InvokeFeatures features, APIGatewayProxyRequest apiGatewayRequest, ILambdaContext lambdaContext)",
    "at Amazon.Lambda.AspNetCoreServer.AbstractAspNetCoreFunction`2.FunctionHandlerAsync(TREQUEST request, ILambdaContext lambdaContext)",
    "at Amazon.Lambda.RuntimeSupport.HandlerWrapper.<>c__DisplayClass25_0`2.<<GetHandlerWrapper>b__0>d.MoveNext()",
    "--- End of stack trace from previous location where exception was thrown ---",
    "at Amazon.Lambda.RuntimeSupport.LambdaBootstrap.InvokeOnceAsync()"
  ]
}

Could you give me some advice what is wrong in the lambda configuration or launching? I changed nothing in the code.

[michaeldimoudis]

An update to these samples, an ASP.NET Core 3.0 version PR is here #4 and blog post updated.