Use PutBucketNotificationConfiguration with an Amazon SDK or command line tool

    using System;
    using System.Collections.Generic;
    using System.Threading.Tasks;
    using Amazon.S3;
    using Amazon.S3.Model;

    /// <summary>
    /// This example shows how to enable notifications for an Amazon Simple
    /// Storage Service (Amazon S3) bucket.
    /// </summary>
    public class EnableNotifications
    {
        public static async Task Main()
        {
            const string bucketName = "doc-example-bucket1";
            const string snsTopic = "arn:aws:sns:us-east-2:0123456789ab:bucket-notify";
            const string sqsQueue = "arn:aws:sqs:us-east-2:0123456789ab:Example_Queue";

            IAmazonS3 client = new AmazonS3Client(Amazon.RegionEndpoint.USEast2);
            await EnableNotificationAsync(client, bucketName, snsTopic, sqsQueue);
        }

        /// <summary>
        /// This method makes the call to the PutBucketNotificationAsync method.
        /// </summary>
        /// <param name="client">An initialized Amazon S3 client used to call
        /// the PutBucketNotificationAsync method.</param>
        /// <param name="bucketName">The name of the bucket for which
        /// notifications will be turned on.</param>
        /// <param name="snsTopic">The ARN for the Amazon Simple Notification
        /// Service (Amazon SNS) topic associated with the S3 bucket.</param>
        /// <param name="sqsQueue">The ARN of the Amazon Simple Queue Service
        /// (Amazon SQS) queue to which notifications will be pushed.</param>
        public static async Task EnableNotificationAsync(
            IAmazonS3 client,
            string bucketName,
            string snsTopic,
            string sqsQueue)
        {
            try
            {
                // The bucket for which we are setting up notifications.
                var request = new PutBucketNotificationRequest()
                {
                    BucketName = bucketName,
                };

                // Defines the topic to use when sending a notification.
                var topicConfig = new TopicConfiguration()
                {
                    Events = new List<EventType> { EventType.ObjectCreatedCopy },
                    Topic = snsTopic,
                };
                request.TopicConfigurations = new List<TopicConfiguration>
                {
                    topicConfig,
                };
                request.QueueConfigurations = new List<QueueConfiguration>
                {
                    new QueueConfiguration()
                    {
                        Events = new List<EventType> { EventType.ObjectCreatedPut },
                        Queue = sqsQueue,
                    },
                };

                // Now apply the notification settings to the bucket.
                PutBucketNotificationResponse response = await client.PutBucketNotificationAsync(request);
            }
            catch (AmazonS3Exception ex)
            {
                Console.WriteLine($"Error: {ex.Message}");
            }
        }
    }

The applies a notification configuration to a bucket named my-bucket:

aws s3api put-bucket-notification --bucket my-bucket --notification-configuration file://notification.json

The file notification.json is a JSON document in the current folder that specifies an SNS topic and an event type to monitor:

{
  "TopicConfiguration": {
    "Event": "s3:ObjectCreated:*",
    "Topic": "arn:aws:sns:us-west-2:123456789012:s3-notification-topic"
  }
}

The SNS topic must have an IAM policy attached to it that allows Amazon S3 to publish to it:

{
 "Version": "2008-10-17",
 "Id": "example-ID",
 "Statement": [
  {
   "Sid": "example-statement-ID",
   "Effect": "Allow",
   "Principal": {
     "Service": "s3.amazonaws.com"
   },
   "Action": [
    "SNS:Publish"
   ],
   "Resource": "arn:aws:sns:us-west-2:123456789012:my-bucket",
   "Condition": {
      "ArnLike": {
      "aws:SourceArn": "arn:aws:s3:*:*:my-bucket"
    }
   }
  }
 ]
}

import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.s3.S3Client;
import software.amazon.awssdk.services.s3.model.Event;
import software.amazon.awssdk.services.s3.model.NotificationConfiguration;
import software.amazon.awssdk.services.s3.model.PutBucketNotificationConfigurationRequest;
import software.amazon.awssdk.services.s3.model.S3Exception;
import software.amazon.awssdk.services.s3.model.TopicConfiguration;
import java.util.ArrayList;
import java.util.List;

public class SetBucketEventBridgeNotification {
    public static void main(String[] args) {
        final String usage = """

                Usage:
                    <bucketName>\s

                Where:
                    bucketName - The Amazon S3 bucket.\s
                    topicArn - The Simple Notification Service topic ARN.\s
                    id - An id value used for the topic configuration. This value is displayed in the AWS Management Console.\s
                """;

        if (args.length != 3) {
            System.out.println(usage);
            System.exit(1);
        }

        String bucketName = args[0];
        String topicArn = args[1];
        String id = args[2];
        Region region = Region.US_EAST_1;
        S3Client s3Client = S3Client.builder()
                .region(region)
                .build();

        setBucketNotification(s3Client, bucketName, topicArn, id);
        s3Client.close();
    }

    public static void setBucketNotification(S3Client s3Client, String bucketName, String topicArn, String id) {
        try {
            List<Event> events = new ArrayList<>();
            events.add(Event.S3_OBJECT_CREATED_PUT);

            TopicConfiguration config = TopicConfiguration.builder()
                    .topicArn(topicArn)
                    .events(events)
                    .id(id)
                    .build();

            List<TopicConfiguration> topics = new ArrayList<>();
            topics.add(config);

            NotificationConfiguration configuration = NotificationConfiguration.builder()
                    .topicConfigurations(topics)
                    .build();

            PutBucketNotificationConfigurationRequest configurationRequest = PutBucketNotificationConfigurationRequest
                    .builder()
                    .bucket(bucketName)
                    .notificationConfiguration(configuration)
                    .skipDestinationValidation(true)
                    .build();

            // Set the bucket notification configuration.
            s3Client.putBucketNotificationConfiguration(configurationRequest);
            System.out.println("Added bucket " + bucketName + " with EventBridge events enabled.");

        } catch (S3Exception e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }
}

Example 1: This example configures the SNS topic configuration for the S3 event ObjectRemovedDelete and enables notification for the given s3 bucket

$topic =  [Amazon.S3.Model.TopicConfiguration] @{
  Id = "delete-event"
  Topic = "arn:aws:sns:eu-west-1:123456789012:topic-1"
  Event = [Amazon.S3.EventType]::ObjectRemovedDelete
}

Write-S3BucketNotification -BucketName kt-tools -TopicConfiguration $topic

Example 2: This example enables notifications of ObjectCreatedAll for the given bucket sending it to Lambda function.

$lambdaConfig = [Amazon.S3.Model.LambdaFunctionConfiguration] @{
  Events = "s3:ObjectCreated:*"
  FunctionArn = "arn:aws:lambda:eu-west-1:123456789012:function:rdplock"
  Id = "ObjectCreated-Lambda"
  Filter = @{
    S3KeyFilter = @{
      FilterRules = @(
        @{Name="Prefix";Value="dada"}
        @{Name="Suffix";Value=".pem"}
      )
    }
  }
}

Write-S3BucketNotification -BucketName ssm-editor -LambdaFunctionConfiguration $lambdaConfig

Example 3: This example creates 2 different Lambda configuration on the basis of different key-suffix and configured both in a single command.

#Lambda Config 1

$firstLambdaConfig = [Amazon.S3.Model.LambdaFunctionConfiguration] @{
  Events = "s3:ObjectCreated:*"
  FunctionArn = "arn:aws:lambda:eu-west-1:123456789012:function:verifynet"
  Id = "ObjectCreated-dada-ps1"
  Filter = @{
    S3KeyFilter = @{
      FilterRules = @(
        @{Name="Prefix";Value="dada"}
        @{Name="Suffix";Value=".ps1"}
      )
    }
  }
}

#Lambda Config 2

$secondlambdaConfig = [Amazon.S3.Model.LambdaFunctionConfiguration] @{
  Events = [Amazon.S3.EventType]::ObjectCreatedAll
  FunctionArn = "arn:aws:lambda:eu-west-1:123456789012:function:verifyssm"
  Id = "ObjectCreated-dada-json"
  Filter = @{
    S3KeyFilter = @{
      FilterRules = @(
        @{Name="Prefix";Value="dada"}
        @{Name="Suffix";Value=".json"}
      )
    }
  }
}

Write-S3BucketNotification -BucketName ssm-editor -LambdaFunctionConfiguration $firstLambdaConfig,$secondlambdaConfig