chore: update comments & confis

Author: dreamorosi

examples/cdk/functions/put-item.ts

@@ -25,8 +25,6 @@ const persistenceStore = new DynamoDBPersistenceLayer({
 });
 // Define the idempotency configuration
 const idempotencyConfig = new IdempotencyConfig({
-  useLocalCache: false,
-  maxLocalCacheSize: 500,
   expiresAfterSeconds: 60 * 60 * 24,
 });
 

examples/cdk/src/function-with-logstream-construct.ts

@@ -8,6 +8,11 @@ import {
 import { LogGroup, RetentionDays } from 'aws-cdk-lib/aws-logs';
 import type { Construct } from 'constructs';
 
+/**
+ * The access mode for the table.
+ *
+ * Values are: read-only (RO) or read-write (RW)
+ */
 type AccessMode = 'RO' | 'RW';
 
 type BindTableProps = {
@@ -32,6 +37,22 @@ type BindTableProps = {
   envVarName?: string;
 };
 
+/**
+ * Custom construct that extends the `NodejsFunction` construct to include a log group
+ * as well as some default properties for the function and a helper method to bind the function to a DynamoDB table.
+ *
+ * The function is created with the following properties:
+ * - `handler` set to `handler`
+ * - `runtime` set to `Runtime.NODEJS_20_X`
+ * - `tracing` set to `Tracing.ACTIVE`
+ * - `architecture` set to `Architecture.ARM_64`
+ * - `timeout` set to `Duration.seconds(30)`
+ * - `environment` set to `{ NODE_OPTIONS: '--enable-source-maps' }`
+ * - `logGroup` set to a new `LogGroup` with the log group name set to `/aws/lambda/${functionName}`
+ *
+ * By setting a custom log group, you can control the log retention policy and other log group settings
+ * without having to deploy custom resources.
+ */
 export class FunctionWithLogGroup extends NodejsFunction {
   public constructor(scope: Construct, id: string, props: NodejsFunctionProps) {
     const { functionName } = props;