describe-stream¶

Description¶

Gets information about a stream.

Requires permission to access the DescribeStream action.

Synopsis¶

  describe-stream
--stream-id <value>
[--cli-input-json | --cli-input-yaml]
[--generate-cli-skeleton <value>]

Options¶

--stream-id (string)

The stream ID.

--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. The generated JSON skeleton is not stable between versions of the AWS CLI and there are no backwards compatibility guarantees in the JSON skeleton generated.

See ‘aws help’ for descriptions of global parameters.

Examples¶

Note

To use the following examples, you must have the AWS CLI installed and configured. See the Getting started guide in the AWS CLI User Guide for more information.

Unless otherwise stated, all examples have unix-like quotation rules. These examples will need to be adapted to your terminal’s quoting rules. See Using quotation marks with strings in the AWS CLI User Guide .

To get information about a stream

The following describe-stream example displays the details about the specified stream.

aws iot describe-stream \
    --stream-id stream12345

Output:

{
    "streamInfo": {
        "streamId": "stream12345",
        "streamArn": "arn:aws:iot:us-west-2:123456789012:stream/stream12345",
        "streamVersion": 1,
        "description": "This stream is used for Amazon FreeRTOS OTA Update 12345.",
        "files": [
            {
                "fileId": "123",
                "s3Location": {
                    "bucket":"codesign-ota-bucket",
                    "key":"48c67f3c-63bb-4f92-a98a-4ee0fbc2bef6"
                }
            }
        ],
        "createdAt": 1557863215.995,
        "lastUpdatedAt": 1557863215.995,
        "roleArn": "arn:aws:iam:123456789012:role/service-role/my_ota_stream_role"
    }
}

For more information, see DescribeStream in the AWS IoT API Reference.

Output¶

streamInfo -> (structure)

Information about the stream.

streamId -> (string)

The stream ID.

streamArn -> (string)

The stream ARN.

streamVersion -> (integer)

The stream version.

description -> (string)

The description of the stream.

files -> (list)

The files to stream.

(structure)

Represents a file to stream.

fileId -> (integer)

The file ID.

s3Location -> (structure)

The location of the file in S3.

bucket -> (string)

The S3 bucket.

key -> (string)

The S3 key.

version -> (string)

The S3 bucket version.

createdAt -> (timestamp)

The date when the stream was created.

lastUpdatedAt -> (timestamp)

The date when the stream was last updated.

roleArn -> (string)

An IAM role IoT assumes to access your S3 files.

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