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RabbitMQ Essentials

You're reading from   RabbitMQ Essentials Build distributed and scalable applications with message queuing using RabbitMQ

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Product type Paperback
Published in Aug 2020
Publisher Packt
ISBN-13 9781789131666
Length 154 pages
Edition 2nd Edition
Languages
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Authors (2):
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Lovisa Johansson Lovisa Johansson
Author Profile Icon Lovisa Johansson
Lovisa Johansson
David Dossot David Dossot
Author Profile Icon David Dossot
David Dossot
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Toc
Sending Messages to Multiple Taxi Drivers

Chapter 2, Creating a Taxi Application, included information on how to connect to and consume messages from RabbitMQ. This chapter demonstrates setting the prefetch value, which specifies the number of messages being sent to the consumer at the same time. It also covers how consumers can either manually acknowledge messages or receive the messages without acknowledgment, the former allowing a zero-message loss design.

A new feature is requested of the Complete Car (CC) team, as the back office wants to be able to send information messages to all taxis at once. This is a prime opportunity to introduce the fanout exchange, which routes messages to all queues bound to them irrespective of the routing keys.

This chapter will cover the following topics:

  • Working with channels and queues
  • Specifying a consumer prefetch count
  • Acknowledging messages...
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