[ aws . mediatailor ]



Retrieves a prefetch schedule for a playback configuration. A prefetch schedule allows you to tell MediaTailor to fetch and prepare certain ads before an ad break happens. For more information about ad prefetching, see Using ad prefetching in the MediaTailor User Guide .

See also: AWS API Documentation


--name <value>
--playback-configuration-name <value>
[--cli-input-json | --cli-input-yaml]
[--generate-cli-skeleton <value>]
[--endpoint-url <value>]
[--output <value>]
[--query <value>]
[--profile <value>]
[--region <value>]
[--version <value>]
[--color <value>]
[--ca-bundle <value>]
[--cli-read-timeout <value>]
[--cli-connect-timeout <value>]
[--cli-binary-format <value>]


--name (string)

The name of the prefetch schedule. The name must be unique among all prefetch schedules that are associated with the specified playback configuration.

--playback-configuration-name (string)

Returns information about the prefetch schedule for a specific playback configuration. If you call GetPrefetchSchedule on an expired prefetch schedule, MediaTailor returns an HTTP 404 status code.

--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.

Global Options

--debug (boolean)

Turn on debug logging.

--endpoint-url (string)

Override command’s default URL with the given URL.

--no-verify-ssl (boolean)

By default, the AWS CLI uses SSL when communicating with AWS services. For each SSL connection, the AWS CLI will verify SSL certificates. This option overrides the default behavior of verifying SSL certificates.

--no-paginate (boolean)

Disable automatic pagination.

--output (string)

The formatting style for command output.

  • json
  • text
  • table
  • yaml
  • yaml-stream

--query (string)

A JMESPath query to use in filtering the response data.

--profile (string)

Use a specific profile from your credential file.

--region (string)

The region to use. Overrides config/env settings.

--version (string)

Display the version of this tool.

--color (string)

Turn on/off color output.

  • on
  • off
  • auto

--no-sign-request (boolean)

Do not sign requests. Credentials will not be loaded if this argument is provided.

--ca-bundle (string)

The CA certificate bundle to use when verifying SSL certificates. Overrides config/env settings.

--cli-read-timeout (int)

The maximum socket read time in seconds. If the value is set to 0, the socket read will be blocking and not timeout. The default value is 60 seconds.

--cli-connect-timeout (int)

The maximum socket connect time in seconds. If the value is set to 0, the socket connect will be blocking and not timeout. The default value is 60 seconds.

--cli-binary-format (string)

The formatting style to be used for binary blobs. The default format is base64. The base64 format expects binary blobs to be provided as a base64 encoded string. The raw-in-base64-out format preserves compatibility with AWS CLI V1 behavior and binary values must be passed literally. When providing contents from a file that map to a binary blob fileb:// will always be treated as binary and use the file contents directly regardless of the cli-binary-format setting. When using file:// the file contents will need to properly formatted for the configured cli-binary-format.

  • base64
  • raw-in-base64-out

--no-cli-pager (boolean)

Disable cli pager for output.

--cli-auto-prompt (boolean)

Automatically prompt for CLI input parameters.

--no-cli-auto-prompt (boolean)

Disable automatically prompt for CLI input parameters.


Arn -> (string)

The Amazon Resource Name (ARN) of the prefetch schedule.

Consumption -> (structure)

Consumption settings determine how, and when, MediaTailor places the prefetched ads into ad breaks. Ad consumption occurs within a span of time that you define, called a consumption window . You can designate which ad breaks that MediaTailor fills with prefetch ads by setting avail matching criteria.

AvailMatchingCriteria -> (list)

If you only want MediaTailor to insert prefetched ads into avails (ad breaks) that match specific dynamic variables, such as scte.event_id , set the avail matching criteria.


MediaTailor only places (consumes) prefetched ads if the ad break meets the criteria defined by the dynamic variables. This gives you granular control over which ad break to place the prefetched ads into.

As an example, let’s say that you set DynamicVariable to scte.event_id and Operator to EQUALS , and your playback configuration has an ADS URL of https://my.ads.server.com/path?&podId=[scte.avail_num]&event=[scte.event_id]&duration=[session.avail_duration_secs] . And the prefetch request to the ADS contains these values https://my.ads.server.com/path?&podId=3&event=my-awesome-event&duration=30 . MediaTailor will only insert the prefetched ads into the ad break if has a SCTE marker with an event id of my-awesome-event , since it must match the event id that MediaTailor uses to query the ADS.

You can specify up to five AvailMatchingCriteria . If you specify multiple AvailMatchingCriteria , MediaTailor combines them to match using a logical AND . You can model logical OR combinations by creating multiple prefetch schedules.

DynamicVariable -> (string)

The dynamic variable(s) that MediaTailor should use as avail matching criteria. MediaTailor only places the prefetched ads into the avail if the avail matches the criteria defined by the dynamic variable. For information about dynamic variables, see Using dynamic ad variables in the MediaTailor User Guide .

You can include up to 100 dynamic variables.

Operator -> (string)

For the DynamicVariable specified in AvailMatchingCriteria , the Operator that is used for the comparison.

EndTime -> (timestamp)

The time when MediaTailor no longer considers the prefetched ads for use in an ad break. MediaTailor automatically deletes prefetch schedules no less than seven days after the end time. If you’d like to manually delete the prefetch schedule, you can call DeletePrefetchSchedule .

StartTime -> (timestamp)

The time when prefetched ads are considered for use in an ad break. If you don’t specify StartTime , the prefetched ads are available after MediaTailor retrives them from the ad decision server.

Name -> (string)

The name of the prefetch schedule. The name must be unique among all prefetch schedules that are associated with the specified playback configuration.

PlaybackConfigurationName -> (string)

The name of the playback configuration to create the prefetch schedule for.

Retrieval -> (structure)

A complex type that contains settings for prefetch retrieval from the ad decision server (ADS).

DynamicVariables -> (map)

The dynamic variables to use for substitution during prefetch requests to the ad decision server (ADS).

You initially configure dynamic variables for the ADS URL when you set up your playback configuration. When you specify DynamicVariables for prefetch retrieval, MediaTailor includes the dynamic variables in the request to the ADS.

key -> (string)

value -> (string)

EndTime -> (timestamp)

The time when prefetch retrieval ends for the ad break. Prefetching will be attempted for manifest requests that occur at or before this time.

StartTime -> (timestamp)

The time when prefetch retrievals can start for this break. Ad prefetching will be attempted for manifest requests that occur at or after this time. Defaults to the current time. If not specified, the prefetch retrieval starts as soon as possible.

StreamId -> (string)

An optional stream identifier that you can specify in order to prefetch for multiple streams that use the same playback configuration.