Class: EventStore::HTTP::Write

Inherits:
Object
  • Object
show all
Includes:
Request, Log::Dependency
Defined in:
lib/event_store/http/write.rb,
lib/event_store/http/write/log_text.rb,
lib/event_store/http/write/substitute.rb

Defined Under Namespace

Modules: LogText, Substitute

Constant Summary collapse

Error = 
Class.new StandardError
ExpectedVersionError = 
Class.new Error

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Request

included

Class Method Details

.stream_path(stream) ⇒ Object 



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# File 'lib/event_store/http/write.rb', line 70

def self.stream_path(stream)
  "/streams/#{stream}"
end

Instance Method Details

#build_request(batch, stream, expected_version: nil) ⇒ Object 



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# File 'lib/event_store/http/write.rb', line 57

def build_request(batch, stream, expected_version: nil)
  path = self.class.stream_path stream

  request = Net::HTTP::Post.new path

  request['Content-Type'] = MediaTypes::Events.mime
  request['ES-ExpectedVersion'] = expected_version.to_s if expected_version

  request.body = Transform::Write.(batch, :json)

  request
end

#call(batch, stream, expected_version: nil) ⇒ Object 



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# File 'lib/event_store/http/write.rb', line 19

def call(batch, stream, expected_version: nil)
  logger.trace { "Writing events (#{LogText.attributes batch, stream, expected_version})" }

  if batch.is_a? Array
    batch = MediaTypes::Events::Batch.build :events => batch
  end

  request = build_request batch, stream, expected_version: expected_version

  response = nil
  
  self.retry.() do |_retry|
    response = connection.request request

    if write_timeout? response
      logger.warn { "Write timeout (#{LogText.attributes batch, stream, expected_version, response: response})" }
      _retry.failed
    end
  end

  case response
  when Net::HTTPCreated then
    location = response['location']
    logger.info { "Events written (#{LogText.attributes batch, stream, expected_version, response: response}, Location: #{location})" }
    URI.parse location

  when proc { wrong_expected_version? response }
    error_message = "Wrong expected version (#{LogText.attributes batch, stream, expected_version, response: response})"
    logger.error { error_message }
    raise ExpectedVersionError, error_message

  else
    error_message = "Request failed (#{LogText.attributes batch, stream, expected_version, response: response})"
    logger.error { error_message }
    raise Error, error_message
  end
end

#configure(session: nil) ⇒ Object 



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# File 'lib/event_store/http/write.rb', line 11

def configure(session: nil)
  if session.nil?
    Retry.configure self
  else
    session.configure_retry self
  end
end

#write_timeout?(response) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/event_store/http/write.rb', line 78

def write_timeout?(response)
  Net::HTTPBadRequest === response && response.message == "Write timeout"
end

#wrong_expected_version?(response) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/event_store/http/write.rb', line 74

def wrong_expected_version?(response)
  Net::HTTPBadRequest === response && response.message == "Wrong expected EventNumber"
end