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20 changes: 17 additions & 3 deletions lib/serverless-typescript-demo-stack.ts
Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,9 @@ export class ServerlessTypescriptDemoStack extends Stack {
constructor(scope: Construct, id: string, props?: StackProps) {
super(scope, id, props);

// Use this toggle to switch between using the Lambda Layer and building the library into the function.
const useLayer = true;

const productsTable = new aws_dynamodb.Table(this, "Products", {
tableName: "Products",
partitionKey: {
Expand All @@ -34,13 +37,24 @@ export class ServerlessTypescriptDemoStack extends Stack {
};

const esBuildSettings = {
minify: true
minify: true,
externalModules: useLayer ? [
'@aws-lambda-powertools/*',
'@aws-sdk/*',
] : [],
}

const powertoolsLayer = aws_lambda.LayerVersion.fromLayerVersionArn(
this,
'PowertoolsLayer',
`arn:aws:lambda:${Stack.of(this).region}:094274105915:layer:AWSLambdaPowertoolsTypeScriptV2:5`
);

const functionSettings = {
handler: "handler",
runtime: aws_lambda.Runtime.NODEJS_16_X,
runtime: aws_lambda.Runtime.NODEJS_18_X,
memorySize: 256,
layers: useLayer ? [powertoolsLayer] : [],
environment: {
TABLE_NAME: productsTable.tableName,
...envVariables
Expand Down Expand Up @@ -129,4 +143,4 @@ export class ServerlessTypescriptDemoStack extends Stack {
value: `${api.url}products`,
});
}
}
}
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