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# NAME

AWS::Lambda - Perl support for AWS Lambda Custom Runtime.

# SYNOPSIS

Save the following Perl script as `handler.pl`.

    sub handle {
        my ($payload, $context) = @_;
        return $payload;
    }
    1;

and then, zip the script.

    $ zip handler.zip handler.pl

Finally, create new function using awscli.

    $ aws --region "$REGION" --profile "$PROFILE" lambda create-function \
        --function-name "hello-perl" \
        --zip-file "fileb://handler.zip" \
        --handler "handler.handle" \
        --runtime provided.al2023 \
        --role arn:aws:iam::xxxxxxxxxxxx:role/service-role/lambda-custom-runtime-perl-role \
        --layers "arn:aws:lambda:$REGION:445285296882:layer:perl-5-38-runtime-al2023-x86_64:1"

It also supports [response streaming](https://docs.aws.amazon.com/lambda/latest/dg/configuration-response-streaming.html).

    sub handle {
        my ($payload, $context) = @_;
        return sub {
            my $responder = shift;
            my $writer = $responder->('application/json');
            $writer->write('{"foo": "bar"}');
            $writer->close;
        };
    }

# DESCRIPTION

This package makes it easy to run AWS Lambda Functions written in Perl.

## Use Pre-built Public Lambda Layers

1. Login to your AWS Account and go to the Lambda Console.
2. Create a new function and give it a name and an IAM Role.
3. For the "Runtime" selection, select **Provide your own bootstrap on Amazon Linux 2**.
4. In the "Designer" section of your function dashboard, select the **Layers** box.
5. Scroll down to the "Layers" section and click **Add a layer**.
6. Select the **Provide a layer version ARN** option, then copy/paste the Layer ARN for your region.
7. Click the **Add** button.
8. Click **Save** in the upper right.
9. Upload your code and start using Perl in AWS Lambda!

You can get the layer ARN in your script by using `get_layer_info`.

    use AWS::Lambda;
    my $info = AWS::Lambda::get_layer_info_al2023(