Book Image

Mastering RethinkDB

By : Shahid Shaikh
Book Image

Mastering RethinkDB

By: Shahid Shaikh

Overview of this book

RethinkDB has a lot of cool things to be excited about: ReQL (its readable,highly-functional syntax), cluster management, primitives for 21st century applications, and change-feeds. This book starts with a brief overview of the RethinkDB architecture and data modeling, and coverage of the advanced ReQL queries to work with JSON documents. Then, you will quickly jump to implementing these concepts in real-world scenarios, by building real-time applications on polling, data synchronization, share market, and the geospatial domain using RethinkDB and Node.js. You will also see how to tweak RethinkDB's capabilities to ensure faster data processing by exploring the sharding and replication techniques in depth. Then, we will take you through the more advanced administration tasks as well as show you the various deployment techniques using PaaS, Docker, and Compose. By the time you have finished reading this book, you would have taken your knowledge of RethinkDB to the next level, and will be able to use the concepts in RethinkDB to develop efficient, real-time applications with ease.
Table of Contents (16 chapters)
Mastering RethinkDB
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface

Understanding the RethinkDB protocol


RethinkDB provides steps for developers who are willing to write client drivers for it in any programming language. These steps are combined to form a small protocol. In this section, we are going to learn this protocol.

The protocol consists of following steps:

  1. Open a connection to RethinkDB.

  2. Perform a handshake.

  3. Query serialization.

  4. Send a message.

  5. Get a response.

Like every other protocol, RethinkDB also uses Transmission control protocol (TCP) to perform the steps mentioned previously.

In order to connect to a RethinkDB instance, open a TCP connection to the RethinkDB Server; by default, the port is 28015.

Before the client driver can perform the query, it needs to perform authentication with the Server in three specific calls one after another; this process is also called handshake. Once this handshake operation is completed, the client driver can execute a query on the RethinkDB Server.

The handshake operation, in a nutshell, works as shown in the following...