myconsciousness/aws-lambda-dart-runtime-ns

A powerful runtime to build Lambda functions in Dart with native AWS events. Sound null safety.

Dart Runtime for AWS Lambda (Sound Null Safety)

A 🎯 Dart Runtime for ƛ AWS Lambda

---

This package is based on the official aws-lambda-dart-runtime. It is a restructured version of the outdated official aws-lambda-dart-runtime adapted to the latest Dart SDK to make it easier to maintain.

Thanks to katallaxie and AWS Labs involved in the development of the original stuff!

You can read the official document too!

---

Features

Read Introducing a Dart runtime for AWS Lambda

• Great performance < 10ms on event processing and < 50MB memory consumption
• No need to ship the Dart runtime
• Multiple event handlers
• Support for serverless framework

📦 Install

You can easily add this package to your app.

dart pub add aws_lambda_dart_runtime_ns

dart pub get

ƛ Use

import 'package:aws_lambda_dart_runtime_ns/aws_lambda_dart_runtime_ns.dart';

Future<void> main() async => await invokeAwsLambdaRuntime([
      _sayHelloWorldFunction,
      _doSomethingFunction,
    ]);

/// GET endpoint that just returns "Hello, World!".
FunctionHandler get _sayHelloWorldFunction => FunctionHandler(
      name: 'main.helloWorld',
      action: (context, event) {
        return InvocationResult(
          requestId: context.requestId,
          body: {
            'message': 'Hello, World!',
          },
        );
      },
    );

/// POST endpoint does something.
FunctionHandler get _doSomethingFunction => FunctionHandler(
      name: 'main.doSomething',
      action: (context, event) {
        // Do something here...

        return InvocationResult(requestId: context.requestId);
      },
    );

License

Apache 2.0

We 💙 Dart.

aws-lambda-dart-runtime-ns's Issues

"errorType": "InvocationError", "Null check operator used on a null value",

Hi,

i came across your package and i want to thank you for your work

i deployed a function and i got the following error

NewEve

Response
{
  "errorType": "InvocationError",
  "errorMessage": "Null check operator used on a null value",
  "stackTrace": "#0      new RuntimeContext.fromNextInvocation (package:aws_lambda_dart_runtime_ns/src/runtime/context.dart:56)\n#1      AwsLambdaRuntime.invoke (package:aws_lambda_dart_runtime_ns/src/runtime/runtime.dart:59)\n<asynchronous suspension>\n#2      invokeAwsLambdaRuntime (package:aws_lambda_dart_runtime_ns/src/runtime/runtime.dart:20)\n<asynchronous suspension>\n#3      main (file:///root/node-zfs-test/qcp_storage_qs_proc/bin/main.dart:3)\n<asynchronous suspension>\n"
}```

aws have a problem with this line `executionEnv: Platform.environment[_kAWSLambdaExecutionEnv]!` i guess this var not in the env for some reason maybe it's an optional var

thanks for you help