ReceivedMessage

A message and its corresponding acknowledgment ID.

JSON representation 
{
  "ackId": string,
  "message": {
    object (PubsubMessage)
  },
  "deliveryAttempt": integer
}
Fields
ackId

string

Optional. This ID can be used to acknowledge the received message.
message

object (PubsubMessage)

Optional. The message.
deliveryAttempt

integer

Optional. The approximate number of times that Pub/Sub has attempted to deliver the associated message to a subscriber.

More precisely, this is 1 + (number of NACKs) + (number of ack_deadline exceeds) for this message.

A NACK is any call to ModifyAckDeadline with a 0 deadline. An ack_deadline exceeds event is whenever a message is not acknowledged within ack_deadline. Note that ack_deadline is initially Subscription.ackDeadlineSeconds, but may get extended automatically by the client library.

Upon the first delivery of a given message, deliveryAttempt will have a value of 1. The value is calculated at best effort and is approximate.

If a DeadLetterPolicy is not set on the subscription, this will be 0.