Refactor Lambda bundling options across stacks to use common configuration for improved consistency and maintainability

Author: av1choudharyy

lib/auth-stack.ts

@@ -19,6 +19,13 @@ export class AuthStack extends cdk.Stack {
 
     const { envName } = props;
 
+    // Common bundling options for all Lambda functions
+    const commonBundlingOptions = {
+      minify: envName === 'prod',
+      sourceMap: envName !== 'prod', // Enable source maps in non-prod environments
+      externalModules: ['aws-sdk']
+    };
+
     const httpApiId = cdk.Fn.importValue(getResourceName(envName, 'BeejhoHttpApiId'));
     const httpApi = HttpApi.fromHttpApiAttributes(this, getResourceName(envName, 'BeejhoHttpApiId'), {
       httpApiId
@@ -38,9 +45,7 @@ export class AuthStack extends cdk.Stack {
         ENV_NAME: envName,
       },
       logRetention: RetentionDays.ONE_DAY,
-      bundling: {
-        externalModules: ['aws-sdk']
-      },
+      bundling: commonBundlingOptions,
     });
     userTable.grantReadWriteData(userLoginLambda);
 
@@ -61,9 +66,7 @@ export class AuthStack extends cdk.Stack {
         ENV_NAME: envName,
       },
       logRetention: RetentionDays.ONE_DAY,
-      bundling: {
-        externalModules: ['aws-sdk']
-      },
+      bundling: commonBundlingOptions,
     });
 
     new HttpRoute(this, getResourceName(envName, 'GenerateOTPRoute'), {
@@ -84,9 +87,7 @@ export class AuthStack extends cdk.Stack {
         ENV_NAME: envName,
       },
       logRetention: RetentionDays.ONE_DAY,
-      bundling: {
-        externalModules: ['aws-sdk']
-      },
+      bundling: commonBundlingOptions,
     });
 
     const userAuthorizer = new HttpAuthorizer(this, getResourceName(envName, 'UserAuthorizer'), {
@@ -118,9 +119,7 @@ export class AuthStack extends cdk.Stack {
       functionName: getResourceName(envName, 'RestaurantLogin'),
       architecture: lambda.Architecture.ARM_64,
       logRetention: RetentionDays.ONE_DAY,
-      bundling: {
-        externalModules: ['aws-sdk']
-      },
+      bundling: commonBundlingOptions,
       environment: {
         JWT_SECRET: 'Abhi2199@321#',
         ENV_NAME: envName,
@@ -146,9 +145,7 @@ export class AuthStack extends cdk.Stack {
         ENV_NAME: envName,
       },
       logRetention: RetentionDays.ONE_DAY,
-      bundling: {
-        externalModules: ['aws-sdk']
-      },
+      bundling: commonBundlingOptions,
     });
 
 

lib/order-stack.ts

@@ -41,6 +41,13 @@ export class OrderStack extends cdk.Stack {
       authorizerType: 'CUSTOM'
     })
 
+    // Common bundling options for all Lambda functions
+    const commonBundlingOptions = {
+      minify: envName === 'prod',
+      sourceMap: envName !== 'prod', // Enable source maps in non-prod environments
+      externalModules: ['aws-sdk']
+    };
+
     const postOrderLambda = new NodejsFunction(this, getResourceName(envName, 'CreateOrder'), {
       runtime: lambda.Runtime.NODEJS_LATEST,
       entry: './src/lambdas/orders.ts',
@@ -51,9 +58,7 @@ export class OrderStack extends cdk.Stack {
       environment: {
         ENV_NAME: envName,
       },
-      bundling: {
-        externalModules: ['aws-sdk']
-      },
+      bundling: commonBundlingOptions,
     });
     ordersTable.grantWriteData(postOrderLambda);
     menuTable.grantReadData(postOrderLambda);
@@ -75,9 +80,7 @@ export class OrderStack extends cdk.Stack {
       environment: {
         ENV_NAME: envName,
       },
-      bundling: {
-        externalModules: ['aws-sdk']
-      },
+      bundling: commonBundlingOptions,
     });
     ordersTableWithRestaurantIDResourceIdIndex.grantReadData(getOrderLambda);
     restaurantTable.grantReadData(getOrderLambda);
@@ -95,12 +98,11 @@ export class OrderStack extends cdk.Stack {
       handler: 'updateOrderHandler',
       functionName: getResourceName(envName, 'updateOrder'),
       architecture: lambda.Architecture.ARM_64,
-      logRetention: RetentionDays.ONE_DAY, environment: {
+      logRetention: RetentionDays.ONE_DAY,
+      environment: {
         ENV_NAME: envName,
       },
-      bundling: {
-        externalModules: ['aws-sdk']
-      },
+      bundling: commonBundlingOptions,
     });
     ordersTable.grantReadWriteData(updateOrderLambda);
 

lib/restaurant-stack.ts

@@ -32,6 +32,13 @@ export class RestaurantStack extends cdk.Stack {
       authorizerType: 'CUSTOM'
     })
 
+    // Common bundling options for all Lambda functions
+    const commonBundlingOptions = {
+      minify: envName === 'prod',
+      sourceMap: envName !== 'prod', // Enable source maps in non-prod environments
+      externalModules: ['aws-sdk']
+    };
+
     const getMenuLambda = new NodejsFunction(this, getResourceName(envName, 'GetMenu'), {
       runtime: lambda.Runtime.NODEJS_LATEST,
       entry: './src/lambdas/restaurant.ts',
@@ -42,9 +49,7 @@ export class RestaurantStack extends cdk.Stack {
       environment: {
         ENV_NAME: envName,
       },
-      bundling: {
-        externalModules: ['aws-sdk']
-      },
+      bundling: commonBundlingOptions,
     });
     menuTable.grantReadData(getMenuLambda);
     restaurantTable.grantReadData(getMenuLambda);
@@ -65,9 +70,7 @@ export class RestaurantStack extends cdk.Stack {
       environment: {
         ENV_NAME: envName,
       },
-      bundling: {
-        externalModules: ['aws-sdk']
-      },
+      bundling: commonBundlingOptions,
     });
     menuTable.grantWriteData(postMenuItemLambda);
 
@@ -88,9 +91,7 @@ export class RestaurantStack extends cdk.Stack {
       environment: {
         ENV_NAME: envName,
       },
-      bundling: {
-        externalModules: ['aws-sdk']
-      },
+      bundling: commonBundlingOptions,
     });
     menuTable.grantWriteData(deleteMenuItemLambda);
 
@@ -111,9 +112,7 @@ export class RestaurantStack extends cdk.Stack {
       environment: {
         ENV_NAME: envName,
       },
-      bundling: {
-        externalModules: ['aws-sdk']
-      },
+      bundling: commonBundlingOptions,
     });
     restaurantTable.grantReadData(getRestaurantOrderDetailsLambda);
     ordersTable.grantReadData(getRestaurantOrderDetailsLambda);

lib/s3-stack.ts

@@ -46,6 +46,13 @@ export class S3Stack extends cdk.Stack {
       ],
     });
 
+    // Common bundling options for all Lambda functions
+    const commonBundlingOptions = {
+      minify: envName === 'prod',
+      sourceMap: envName !== 'prod', // Enable source maps in non-prod environments
+      externalModules: ['aws-sdk']
+    };
+
     const getPreSignedURLLambda = new NodejsFunction(this, getResourceName(envName, 'PreSignedS3URL'), {
       runtime: lambda.Runtime.NODEJS_LATEST,
       entry: './src/lambdas/s3.ts',
@@ -56,9 +63,7 @@ export class S3Stack extends cdk.Stack {
       environment: {
         ENV_NAME: envName,
       },
-      bundling: {
-        externalModules: ['aws-sdk']
-      },
+      bundling: commonBundlingOptions,
     });
 
     getPreSignedURLLambda.addToRolePolicy(