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Showing content from https://docs.aws.amazon.com/sdkforruby/api/Aws/KinesisVideoMedia/Client.html below:

Client — AWS SDK for Ruby V2

You are viewing documentation for version 2 of the AWS SDK for Ruby. Version 3 documentation can be found here.

An API client for Amazon Kinesis Video Streams Media. To construct a client, you need to configure a :region and :credentials.

kinesisvideomedia = Aws::KinesisVideoMedia::Client.new(
  region: region_name,
  credentials: credentials,
  )

See #initialize for a full list of supported configuration options.

You can configure a default region in the following locations:

• ENV['AWS_REGION']
• Aws.config[:region]

Go here for a list of supported regions.

Default credentials are loaded automatically from the following locations:

• ENV['AWS_ACCESS_KEY_ID'] and ENV['AWS_SECRET_ACCESS_KEY']
• Aws.config[:credentials]
• The shared credentials ini file at ~/.aws/credentials (more information)
• From an instance profile when running on EC2

You can also construct a credentials object from one of the following classes:

• Credentials
• SharedCredentials
• InstanceProfileCredentials
• AssumeRoleCredentials

Alternatively, you configure credentials with :access_key_id and :secret_access_key:

creds = YAML.load(File.read('/path/to/secrets'))

Aws::KinesisVideoMedia::Client.new(
  access_key_id: creds['access_key_id'],
  secret_access_key: creds['secret_access_key']
)

Always load your credentials from outside your application. Avoid configuring credentials statically and never commit them to source control.

#config, #handlers

• #initialize(options = {}) ⇒ Aws::KinesisVideoMedia::Client constructor

  Constructs an API client.

• #get_media(options = {}) ⇒ Types::GetMediaOutput

  Use this API to retrieve media content from a Kinesis video stream.

• #wait_until(waiter_name, params = {}) {|waiter| ... } ⇒ Boolean

  Waiters polls an API operation until a resource enters a desired state.

• #waiter_names ⇒ Array<Symbol>

  Returns the list of supported waiters.

add_plugin, api, #build_request, clear_plugins, define, new, #operation, #operation_names, plugins, remove_plugin, set_api, set_plugins

#handle, #handle_request, #handle_response

Use this API to retrieve media content from a Kinesis video stream. In the request, you identify the stream name or stream Amazon Resource Name (ARN), and the starting chunk. Kinesis Video Streams then returns a stream of chunks in order by fragment number.

You must first call the GetDataEndpoint API to get an endpoint. Then send the GetMedia requests to this endpoint using the --endpoint-url parameter.

When you put media data (fragments) on a stream, Kinesis Video Streams stores each incoming fragment and related metadata in what is called a "chunk." For more information, see PutMedia. The GetMedia API returns a stream of these chunks starting from the chunk that you specify in the request.

The following limits apply when using the GetMedia API:

• A client can call GetMedia up to five times per second per stream.

• Kinesis Video Streams sends media data at a rate of up to 25 megabytes per second (or 200 megabits per second) during a GetMedia session.

If an error is thrown after invoking a Kinesis Video Streams media API, in addition to the HTTP status code and the response body, it includes the following pieces of information:

• x-amz-ErrorType HTTP header – contains a more specific error type in addition to what the HTTP status code provides.

• x-amz-RequestId HTTP header – if you want to report an issue to AWS, the support team can better diagnose the problem if given the Request Id.

Both the HTTP status code and the ErrorType header can be utilized to make programmatic decisions about whether errors are retry-able and under what conditions, as well as provide information on what actions the client programmer might need to take in order to successfully try again.

For more information, see the Errors section at the bottom of this topic, as well as Common Errors.

Waiters polls an API operation until a resource enters a desired state.

Waiters will poll until they are succesful, they fail by entering a terminal state, or until a maximum number of attempts are made.

# polls in a loop, sleeping between attempts client.waiter_until(waiter_name, params)

You can configure the maximum number of polling attempts, and the delay (in seconds) between each polling attempt. You configure waiters by passing a block to #wait_until:

# poll for ~25 seconds
client.wait_until(...) do |w|
  w.max_attempts = 5
  w.delay = 5
end

You can be notified before each polling attempt and before each delay. If you throw :success or :failure from these callbacks, it will terminate the waiter.

started_at = Time.now
client.wait_until(...) do |w|

  # disable max attempts
  w.max_attempts = nil

  # poll for 1 hour, instead of a number of attempts
  w.before_wait do |attempts, response|
    throw :failure if Time.now - started_at > 3600
  end

end

When a waiter is successful, it returns true. When a waiter fails, it raises an error. All errors raised extend from Waiters::Errors::WaiterFailed.

begin
  client.wait_until(...)
rescue Aws::Waiters::Errors::WaiterFailed
  # resource did not enter the desired state in time
end

Returns the list of supported waiters. The following table lists the supported waiters and the client method they call:

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