Updating to NodeJS 10 runtime in the SAM template

preTrafficHook.js

@@ -54,7 +54,7 @@ exports.handler = (event, context, callback) => {
 			//		"statusCode": 200,
 			//		"body": 51
 			// }
-			if(result.body == 9){	
+			if(result.body == 29){	
 				lambdaResult = "Succeeded";
 				console.log ("Validation testing succeeded!");
 			}

returnS3Buckets.js

@@ -1,4 +1,4 @@
-/*
+1/*
  * Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of this
@@ -15,30 +15,33 @@
  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
- 'use strict';
-
-var AWS = require('aws-sdk');
-var s3 = new AWS.S3();
-
-exports.handler = (event, context, callback) => {
-	console.log("I am here! " + context.functionName  +  ":"  +  context.functionVersion);
-
-	s3.listBuckets(function (err, data){
-		if(err){
-			console.log(err, err.stack);
-			callback(null, {
-				statusCode: 500,
-				body: "Failed!"
-			});
-		}
-		else{
-			var allBuckets = data.Buckets;
-
-			console.log("Total buckets: " + allBuckets.length);
-			callback(null, {
-				statusCode: 200,
-				body: allBuckets.length
-			});
-		}
-	});	
-}
+'use strict';
+
+const AWS = require('aws-sdk');
+const s3 = new AWS.S3();
+
+exports.handler = async (event, context) => {
+	console.log(`I am here! " ${context.functionName}  +  ":"  +  ${context.functionVersion}`);
+	let response
+	try {
+		const data = await s3.listBuckets().promise();
+		const allBuckets = data.Buckets;
+
+		console.log(`Total buckets: ${allBuckets.length}`)
+
+		response = {
+			statusCode: 200,
+			body: allBuckets.length
+		};
+
+	} catch (error) {
+		console.log(`Error - `, error, error.stack);
+		return {
+			statusCode: 500,
+			body: JSON.stringify(error)
+		};
+	}
+
+	return response
+}
+

returnS3BucketsNew.js

@@ -17,39 +17,40 @@
 
 'use strict';
 
-var AWS = require('aws-sdk');
-var s3 = new AWS.S3();
-
-exports.handler = (event, context, callback) => {
-	console.log("I am here! " + context.functionName  +  ":"  +  context.functionVersion);
-
-	s3.listBuckets(function (err, data){
-		if(err){
-			console.log(err, err.stack);
-			callback(null, {
-				statusCode: 500,
-				body: "Failed!"
-			});
-		}
-		else{
-			var allBuckets = data.Buckets;
-
-			console.log("Total buckets: " + allBuckets.length);
-			//callback(null, allBuckets.length);
-
-			//  New Code begins here
-			var counter=0;
-			for(var i  in allBuckets){
-				if(allBuckets[i].Name[0] === "a")
-					counter++;
-			}
-			console.log("Total buckets starting with a: " + counter);
-
-			callback(null, {
-				statusCode: 200,
-				body: counter
-			});
-
+const AWS = require('aws-sdk');
+const s3 = new AWS.S3();
+
+exports.handler = async (event, context) => {
+	console.log(`I am here! " ${context.functionName}  +  ":"  +  ${context.functionVersion}`);
+
+	let response
+	try {
+
+		const data = await s3.listBuckets().promise();
+		const allBuckets = data.Buckets;
+
+		console.log(`Total buckets: ${allBuckets.length}`)
+
+		//  New Code begins here
+		let counter = 0;
+		for (var i in allBuckets) {
+			if (allBuckets[i].Name[0] === "a")
+				counter++;
 		}
-	});	
-}
+		console.log(`Total buckets starting with a: ${counter}`);
+
+		response = {
+			statusCode: 200,
+			body: counter
+		};
+
+	} catch (error) {
+		console.log(`Error - `, error, error.stack);
+		return {
+			statusCode: 500,
+			body: JSON.stringify(error)
+		};
+	}
+
+	return response
+}

template.yaml

@@ -8,7 +8,7 @@ Resources:
     Type: AWS::Serverless::Function
     Properties:
       Handler: returnS3Buckets.handler
-      Runtime: nodejs6.10
+      Runtime: nodejs10.x
       AutoPublishAlias: live
       Policies:
         - Version: "2012-10-17"
@@ -46,7 +46,7 @@ Resources:
             Action: 
               - "lambda:InvokeFunction"
             Resource: !Ref returnS3Buckets.Version
-      Runtime: nodejs6.10
+      Runtime: nodejs10.x
       FunctionName: 'CodeDeployHook_preTrafficHook'
       DeploymentPreference:
         Enabled: false