Use DeregisterStreamConsumer with an Amazon SDK or CLI

    using System;
    using System.Threading.Tasks;
    using Amazon.Kinesis;
    using Amazon.Kinesis.Model;

    /// <summary>
    /// Shows how to deregister a consumer from an Amazon Kinesis stream.
    /// </summary>
    public class DeregisterConsumer
    {
        public static async Task Main(string[] args)
        {
            IAmazonKinesis client = new AmazonKinesisClient();

            string streamARN = "arn:aws:kinesis:us-west-2:000000000000:stream/AmazonKinesisStream";
            string consumerName = "CONSUMER_NAME";
            string consumerARN = "arn:aws:kinesis:us-west-2:000000000000:stream/AmazonKinesisStream/consumer/CONSUMER_NAME:000000000000";

            var success = await DeregisterConsumerAsync(client, streamARN, consumerARN, consumerName);

            if (success)
            {
                Console.WriteLine($"{consumerName} successfully deregistered.");
            }
            else
            {
                Console.WriteLine($"{consumerName} was not successfully deregistered.");
            }
        }

        /// <summary>
        /// Deregisters a consumer from a Kinesis stream.
        /// </summary>
        /// <param name="client">An initialized Kinesis client object.</param>
        /// <param name="streamARN">The ARN of a Kinesis stream.</param>
        /// <param name="consumerARN">The ARN of the consumer.</param>
        /// <param name="consumerName">The name of the consumer.</param>
        /// <returns>A Boolean value representing the success of the operation.</returns>
        public static async Task<bool> DeregisterConsumerAsync(
            IAmazonKinesis client,
            string streamARN,
            string consumerARN,
            string consumerName)
        {
            var request = new DeregisterStreamConsumerRequest
            {
                StreamARN = streamARN,
                ConsumerARN = consumerARN,
                ConsumerName = consumerName,
            };

            var response = await client.DeregisterStreamConsumerAsync(request);

            return response.HttpStatusCode == System.Net.HttpStatusCode.OK;
        }
    }

To deregister a data stream consumer

The following deregister-stream-consumer example deregisters the specified consumer from the specified data stream.

aws kinesis deregister-stream-consumer \
    --stream-arn arn:aws:kinesis:us-west-2:123456789012:stream/samplestream \
    --consumer-name KinesisConsumerApplication

This command produces no output.

For more information, see Developing Consumers with Enhanced Fan-Out Using the Kinesis Data Streams API in the Amazon Kinesis Data Streams Developer Guide.