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

PageableResponse — 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.

Defined in:

aws-sdk-core/lib/aws-sdk-core/pageable_response.rb

Decorates a Seahorse::Client::Response with paging methods:

resp = s3.list_objects(params)
resp.last_page?

resp = resp.next_page
resp.last_page?

resp.next_page

You can enumerate all response pages with a block

ec2.describe_instances(params).each do |page|
    page.reservations.each do |r|
      end
end

Or using #next_page and #last_page?:

resp.last_page?
resp = resp.next_page until resp.last_page?

Modules: UnsafeEnumerableMethods Classes: LastPageError

• #pager ⇒ Paging::Pager

• .extended(base) ⇒ Object

• #each {|response| ... } ⇒ Enumerable^? (also: #each_page)

  Yields the current and each following response to the given block.

• #last_page? ⇒ Boolean

  Returns true if there are no more results.

• #next_page(params = {}) ⇒ Seahorse::Client::Response
• #next_page? ⇒ Boolean

  Returns true if there are more results.

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# File 'aws-sdk-core/lib/aws-sdk-core/pageable_response.rb', line 41

def 
  @pager
end

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# File 'aws-sdk-core/lib/aws-sdk-core/pageable_response.rb', line 33

def self.extended(base)
  base.send(:extend, Enumerable)
  base.send(:extend, UnsafeEnumerableMethods)
  base.instance_variable_set("@last_page", nil)
  base.instance_variable_set("@more_results", nil)
end

Yields the current and each following response to the given block.

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# File 'aws-sdk-core/lib/aws-sdk-core/pageable_response.rb', line 72

def each(&block)
  return enum_for(:each_page) unless block_given?
  response = self
  yield(response)
  until response.last_page?
    response = response.next_page
    yield(response)
  end
end

Returns true if there are no more results. Calling #next_page when this method returns false will raise an error.

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# File 'aws-sdk-core/lib/aws-sdk-core/pageable_response.rb', line 46

def last_page?
  if @last_page.nil?
    @last_page = !@pager.truncated?(self)
  end
  @last_page
end

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# File 'aws-sdk-core/lib/aws-sdk-core/pageable_response.rb', line 61

def next_page(params = {})
  if last_page?
    raise LastPageError.new(self)
  else
    next_response(params)
  end
end

Returns true if there are more results. Calling #next_page will return the next response.

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# File 'aws-sdk-core/lib/aws-sdk-core/pageable_response.rb', line 56

def next_page?
  !last_page?
end

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