support cache conifguration for app

packages/@aws-cdk/aws-amplify-alpha/README.md

@@ -246,6 +246,20 @@ const amplifyApp = new amplify.App(this, 'MyApp', {
 });
 ```
 
+## Cache Config
+
+Amplify uses Amazon CloudFront to manage the caching configuration for your hosted applications. A cache configuration is applied to each app to optimize for the best performance.
+
+Setting the `cacheConfigType` field on the Amplify `App` construct can be used to control cache configguration. By default, the value is set to `AMPLIFY_MANAGED`. If you want to exclude all cookies from the cache key, set `AMPLIFY_MANAGED_NO_COOKIES`.
+
+For more information, see [Managing the cache configuration for an app](https://docs.aws.amazon.com/amplify/latest/userguide/caching.html).
+
+```ts
+const amplifyApp = new amplify.App(this, 'MyApp', {
+  cacheConfigType: amplify.CacheConfigType.AMPLIFY_MANAGED_NO_COOKIES,
+});
+```
+
 ## Deploying Assets
 
 `sourceCodeProvider` is optional; when this is not specified the Amplify app can be deployed to using `.zip` packages. The `asset` property can be used to deploy S3 assets to Amplify as part of the CDK:

packages/@aws-cdk/aws-amplify-alpha/lib/app.ts

@@ -167,6 +167,13 @@ export interface AppProps {
    * @default Platform.WEB
    */
   readonly platform?: Platform;
+
+  /**
+   * The type of cache configuration to use for an Amplify app.
+   *
+   * @default CacheConfig.AMPLIFY_MANAGED
+   */
+  readonly cacheConfigType?: CacheConfig;
 }
 
 /**
@@ -239,7 +246,7 @@ export class App extends Resource implements IApp, iam.IGrantable {
         buildSpec: props.autoBranchCreation.buildSpec && props.autoBranchCreation.buildSpec.toBuildSpec(),
         enableAutoBranchCreation: true,
         enableAutoBuild: props.autoBranchCreation.autoBuild ?? true,
-        environmentVariables: Lazy.any({ produce: () => renderEnvironmentVariables(this.autoBranchEnvironmentVariables ) }, { omitEmptyArray: true }), // eslint-disable-line max-len
+        environmentVariables: Lazy.any({ produce: () => renderEnvironmentVariables(this.autoBranchEnvironmentVariables) }, { omitEmptyArray: true }), // eslint-disable-line max-len
         enablePullRequestPreview: props.autoBranchCreation.pullRequestPreview ?? true,
         pullRequestEnvironmentName: props.autoBranchCreation.pullRequestEnvironmentName,
         stage: props.autoBranchCreation.stage,
@@ -249,6 +256,7 @@ export class App extends Resource implements IApp, iam.IGrantable {
         ? props.basicAuth.bind(this, 'AppBasicAuth')
         : { enableBasicAuth: false },
       buildSpec: props.buildSpec && props.buildSpec.toBuildSpec(),
+      cacheConfig: props.cacheConfigType ? { type: props.cacheConfigType } : undefined,
       customRules: Lazy.any({ produce: () => this.customRules }, { omitEmptyArray: true }),
       description: props.description,
       environmentVariables: Lazy.any({ produce: () => renderEnvironmentVariables(this.environmentVariables) }, { omitEmptyArray: true }),
@@ -554,3 +562,20 @@ export enum Platform {
    */
   WEB_COMPUTE = 'WEB_COMPUTE',
 }
+
+/**
+ * The type of cache configuration to use for an Amplify app.
+ */
+export enum CacheConfig {
+  /**
+   * AMPLIFY_MANAGED - Automatically applies an optimized cache configuration
+   * for your app based on its platform, routing rules, and rewrite rules.
+   */
+  AMPLIFY_MANAGED = 'AMPLIFY_MANAGED',
+
+  /**
+   * AMPLIFY_MANAGED_NO_COOKIES - The same as AMPLIFY_MANAGED,
+   * except that it excludes all cookies from the cache key.
+   */
+  AMPLIFY_MANAGED_NO_COOKIES = 'AMPLIFY_MANAGED_NO_COOKIES',
+}

packages/@aws-cdk/aws-amplify-alpha/test/app.test.ts

@@ -464,3 +464,17 @@ test('create a dynamically rendered app when the platform is set to WEB_COMPUTE'
     Platform: amplify.Platform.WEB_COMPUTE,
   });
 });
+
+test.each([amplify.CacheConfig.AMPLIFY_MANAGED, amplify.CacheConfig.AMPLIFY_MANAGED_NO_COOKIES])('create a app with cacheConfigType is set to %s', (cacheConfigType) => {
+  // WHEN
+  new amplify.App(stack, 'App', {
+    cacheConfigType,
+  });
+
+  // THEN
+  Template.fromStack(stack).hasResourceProperties('AWS::Amplify::App', {
+    CacheConfig: {
+      Type: cacheConfigType,
+    },
+  });
+});

packages/@aws-cdk/aws-amplify-alpha/test/integ.app-cache-config.js.snapshot/cdk-amplify-app-cache-config.template.json

@@ -0,0 +1,88 @@
+{
+ "Resources": {
+  "AppRole1AF9B530": {
+   "Type": "AWS::IAM::Role",
+   "Properties": {
+    "AssumeRolePolicyDocument": {
+     "Statement": [
+      {
+       "Action": "sts:AssumeRole",
+       "Effect": "Allow",
+       "Principal": {
+        "Service": "amplify.amazonaws.com"
+       }
+      }
+     ],
+     "Version": "2012-10-17"
+    }
+   }
+  },
+  "AppF1B96344": {
+   "Type": "AWS::Amplify::App",
+   "Properties": {
+    "BasicAuthConfig": {
+     "EnableBasicAuth": false
+    },
+    "CacheConfig": {
+     "Type": "AMPLIFY_MANAGED_NO_COOKIES"
+    },
+    "IAMServiceRole": {
+     "Fn::GetAtt": [
+      "AppRole1AF9B530",
+      "Arn"
+     ]
+    },
+    "Name": "App",
+    "Platform": "WEB"
+   }
+  },
+  "AppmainF505BAED": {
+   "Type": "AWS::Amplify::Branch",
+   "Properties": {
+    "AppId": {
+     "Fn::GetAtt": [
+      "AppF1B96344",
+      "AppId"
+     ]
+    },
+    "BranchName": "main",
+    "EnableAutoBuild": true,
+    "EnablePullRequestPreview": true
+   }
+  }
+ },
+ "Parameters": {
+  "BootstrapVersion": {
+   "Type": "AWS::SSM::Parameter::Value<String>",
+   "Default": "/cdk-bootstrap/hnb659fds/version",
+   "Description": "Version of the CDK Bootstrap resources in this environment, automatically retrieved from SSM Parameter Store. [cdk:skip]"
+  }
+ },
+ "Rules": {
+  "CheckBootstrapVersion": {
+   "Assertions": [
+    {
+     "Assert": {
+      "Fn::Not": [
+       {
+        "Fn::Contains": [
+         [
+          "1",
+          "2",
+          "3",
+          "4",
+          "5"
+         ],
+         {
+          "Ref": "BootstrapVersion"
+         }
+        ]
+       }
+      ]
+     },
+     "AssertDescription": "CDK bootstrap stack version 6 required. Please run 'cdk bootstrap' with a recent version of the CDK CLI."
+    }
+   ]
+  }
+ }
+}