chore(kinesisfirehose-alpha): replacedestinations property with destination and change type from array to single IDestination

packages/@aws-cdk/aws-iot-actions-alpha/README.md

@@ -243,7 +243,7 @@ import * as destinations from '@aws-cdk/aws-kinesisfirehose-destinations-alpha';
 
 const bucket = new s3.Bucket(this, 'MyBucket');
 const stream = new firehose.DeliveryStream(this, 'MyStream', {
-  destinations: [new destinations.S3Bucket(bucket)],
+  destination: new destinations.S3Bucket(bucket),
 });
 
 const topicRule = new iot.TopicRule(this, 'TopicRule', {

packages/@aws-cdk/aws-iot-actions-alpha/test/kinesis-firehose/integ.firehose-put-record-action.ts

@@ -21,7 +21,7 @@ class TestStack extends cdk.Stack {
       removalPolicy: cdk.RemovalPolicy.DESTROY,
     });
     const stream = new firehose.DeliveryStream(this, 'MyStream', {
-      destinations: [new destinations.S3Bucket(bucket)],
+      destination: new destinations.S3Bucket(bucket),
     });
     topicRule.addAction(
       new actions.FirehosePutRecordAction(stream, {

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

@@ -41,7 +41,7 @@ used as a destination. More supported destinations are covered [below](#destinat
 ```ts
 const bucket = new s3.Bucket(this, 'Bucket');
 new firehose.DeliveryStream(this, 'Delivery Stream', {
-  destinations: [new destinations.S3Bucket(bucket)],
+  destination: new destinations.S3Bucket(bucket),
 });
 ```
 
@@ -71,7 +71,7 @@ declare const destination: firehose.IDestination;
 const sourceStream = new kinesis.Stream(this, 'Source Stream');
 new firehose.DeliveryStream(this, 'Delivery Stream', {
   sourceStream: sourceStream,
-  destinations: [destination],
+  destination: destination,
 });
 ```
 
@@ -108,7 +108,7 @@ declare const bucket: s3.Bucket;
 const s3Destination = new destinations.S3Bucket(bucket);
 
 new firehose.DeliveryStream(this, 'Delivery Stream', {
-  destinations: [s3Destination],
+  destination: s3Destination,
 });
 ```
 
@@ -154,18 +154,18 @@ declare const destination: firehose.IDestination;
 // SSE with an AWS-owned key
 new firehose.DeliveryStream(this, 'Delivery Stream AWS Owned', {
   encryption: firehose.StreamEncryption.awsOwnedKey(),
-  destinations: [destination],
+  destination: destination,
 });
 // SSE with an customer-managed key that is created automatically by the CDK
 new firehose.DeliveryStream(this, 'Delivery Stream Implicit Customer Managed', {
   encryption: firehose.StreamEncryption.customerManagedKey(),
-  destinations: [destination],
+  destination: destination,
 });
 // SSE with an customer-managed key that is explicitly specified
 declare const key: kms.Key;
 new firehose.DeliveryStream(this, 'Delivery Stream Explicit Customer Managed', {
   encryption: firehose.StreamEncryption.customerManagedKey(key),
-  destinations: [destination],
+  destination: destination,
 });
 ```
 
@@ -196,7 +196,7 @@ const destination = new destinations.S3Bucket(bucket, {
 });
 
 new firehose.DeliveryStream(this, 'Delivery Stream', {
-  destinations: [destination],
+  destination: destination,
 });
 ```
 
@@ -208,7 +208,7 @@ const destination = new destinations.S3Bucket(bucket, {
   loggingConfig: new destinations.DisableLogging(),
 });
 new firehose.DeliveryStream(this, 'Delivery Stream', {
-  destinations: [destination],
+  destination: destination,
 });
 ```
 
@@ -271,7 +271,7 @@ const s3Destination = new destinations.S3Bucket(bucket, {
   compression: destinations.Compression.SNAPPY,
 });
 new firehose.DeliveryStream(this, 'Delivery Stream', {
-  destinations: [s3Destination],
+  destination: s3Destination,
 });
 ```
 
@@ -292,7 +292,7 @@ const destination = new destinations.S3Bucket(bucket, {
   bufferingSize: Size.mebibytes(8),
 });
 new firehose.DeliveryStream(this, 'Delivery Stream', {
-  destinations: [destination],
+  destination: destination,
 });
 ```
 
@@ -309,7 +309,7 @@ const destination = new destinations.S3Bucket(bucket, {
   bufferingInterval: Duration.seconds(0),
 });
 new firehose.DeliveryStream(this, 'ZeroBufferDeliveryStream', {
-  destinations: [destination],
+  destination: destination,
 });
 ```
 
@@ -332,7 +332,7 @@ const destination = new destinations.S3Bucket(bucket, {
   encryptionKey: key,
 });
 new firehose.DeliveryStream(this, 'Delivery Stream', {
-  destinations: [destination],
+  destination: destination,
 });
 ```
 
@@ -350,35 +350,32 @@ backed up to S3.
 // Enable backup of all source records (to an S3 bucket created by CDK).
 declare const bucket: s3.Bucket;
 new firehose.DeliveryStream(this, 'Delivery Stream Backup All', {
-  destinations: [
+  destination:
     new destinations.S3Bucket(bucket, {
       s3Backup: {
         mode: destinations.BackupMode.ALL,
       },
     }),
-  ],
 });
 // Explicitly provide an S3 bucket to which all source records will be backed up.
 declare const backupBucket: s3.Bucket;
 new firehose.DeliveryStream(this, 'Delivery Stream Backup All Explicit Bucket', {
-  destinations: [
+  destination: 
     new destinations.S3Bucket(bucket, {
       s3Backup: {
         bucket: backupBucket,
       },
     }),
-  ],
 });
 // Explicitly provide an S3 prefix under which all source records will be backed up.
 new firehose.DeliveryStream(this, 'Delivery Stream Backup All Explicit Prefix', {
-  destinations: [
+  destination:
     new destinations.S3Bucket(bucket, {
       s3Backup: {
         mode: destinations.BackupMode.ALL,
         dataOutputPrefix: 'mybackup',
       },
     }),
-  ],
 });
 ```
 
@@ -431,7 +428,7 @@ const s3Destination = new destinations.S3Bucket(bucket, {
   processor: lambdaProcessor,
 });
 new firehose.DeliveryStream(this, 'Delivery Stream', {
-  destinations: [s3Destination],
+  destination: s3Destination,
 });
 ```
 
@@ -473,7 +470,7 @@ const destinationRole = new iam.Role(this, 'Destination Role', {
 declare const bucket: s3.Bucket;
 const destination = new destinations.S3Bucket(bucket, { role: destinationRole });
 new firehose.DeliveryStream(this, 'Delivery Stream', {
-  destinations: [destination],
+  destination: destination,
   role: deliveryStreamRole,
 });
 ```

packages/@aws-cdk/aws-kinesisfirehose-alpha/lib/delivery-stream.ts

@@ -185,11 +185,9 @@ export enum StreamEncryptionType {
  */
 export interface DeliveryStreamProps {
   /**
-   * The destinations that this delivery stream will deliver data to.
-   *
-   * Only a singleton array is supported at this time.
+   * The destination that this delivery stream will deliver data to.
    */
-  readonly destinations: IDestination[];
+  readonly destination: IDestination;
 
   /**
    * A name for the delivery stream.
@@ -324,10 +322,6 @@ export class DeliveryStream extends DeliveryStreamBase {
 
     this._role = props.role;
 
-    if (props.destinations.length !== 1) {
-      throw new Error(`Only one destination is allowed per delivery stream, given ${props.destinations.length}`);
-    }
-
     if (props.encryption?.encryptionKey || props.sourceStream) {
       this._role = this._role ?? new iam.Role(this, 'Service Role', {
         assumedBy: new iam.ServicePrincipal('firehose.amazonaws.com'),
@@ -369,7 +363,7 @@ export class DeliveryStream extends DeliveryStreamBase {
       readStreamGrant = props.sourceStream.grantRead(this._role);
     }
 
-    const destinationConfig = props.destinations[0].bind(this, {});
+    const destinationConfig = props.destination.bind(this, {});
 
     const resource = new CfnDeliveryStream(this, 'Resource', {
       deliveryStreamEncryptionConfigurationInput: encryptionConfig,