[ aws . kinesis ]

register-stream-consumer

Description

Registers a consumer with a Kinesis data stream. When you use this operation, the consumer you register can then call SubscribeToShard to receive data from the stream using enhanced fan-out, at a rate of up to 2 MiB per second for every shard you subscribe to. This rate is unaffected by the total number of consumers that read from the same stream.

You can register up to 20 consumers per stream. A given consumer can only be registered with one stream at a time.

For an example of how to use this operations, see Enhanced Fan-Out Using the Kinesis Data Streams API .

The use of this operation has a limit of five transactions per second per account. Also, only 5 consumers can be created simultaneously. In other words, you cannot have more than 5 consumers in a CREATING status at the same time. Registering a 6th consumer while there are 5 in a CREATING status results in a LimitExceededException .

See also: AWS API Documentation

See ‘aws help’ for descriptions of global parameters.

Synopsis

  register-stream-consumer
--stream-arn <value>
--consumer-name <value>
[--cli-input-json | --cli-input-yaml]
[--generate-cli-skeleton <value>]

Options

--stream-arn (string)

The ARN of the Kinesis data stream that you want to register the consumer with. For more info, see Amazon Resource Names (ARNs) and AWS Service Namespaces .

--consumer-name (string)

For a given Kinesis data stream, each consumer must have a unique name. However, consumer names don’t have to be unique across data streams.

--cli-input-json | --cli-input-yaml (string) Reads arguments from the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, those values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally. This may not be specified along with --cli-input-yaml.

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. Similarly, if provided yaml-input it will print a sample input YAML that can be used with --cli-input-yaml. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

See ‘aws help’ for descriptions of global parameters.

Examples

To register a data stream consumer

The following register-stream-consumer example registers a consumer called KinesisConsumerApplication with the specified data stream.

aws kinesis register-stream-consumer \
    --stream-arn arn:aws:kinesis:us-west-2:012345678912:stream/samplestream \
    --consumer-name KinesisConsumerApplication

Output:

{
    "Consumer": {
        "ConsumerName": "KinesisConsumerApplication",
        "ConsumerARN": "arn:aws:kinesis:us-west-2: 123456789012:stream/samplestream/consumer/KinesisConsumerApplication:1572383852",
        "ConsumerStatus": "CREATING",
        "ConsumerCreationTimestamp": 1572383852.0
    }
}

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

Output

Consumer -> (structure)

An object that represents the details of the consumer you registered. When you register a consumer, it gets an ARN that is generated by Kinesis Data Streams.

ConsumerName -> (string)

The name of the consumer is something you choose when you register the consumer.

ConsumerARN -> (string)

When you register a consumer, Kinesis Data Streams generates an ARN for it. You need this ARN to be able to call SubscribeToShard .

If you delete a consumer and then create a new one with the same name, it won’t have the same ARN. That’s because consumer ARNs contain the creation timestamp. This is important to keep in mind if you have IAM policies that reference consumer ARNs.

ConsumerStatus -> (string)

A consumer can’t read data while in the CREATING or DELETING states.

ConsumerCreationTimestamp -> (timestamp)