About the Authors

Ravi Kumar Gupta is an author, reviewer, and open source software evangelist. He pursued an MS degree in software system at BITS Pilani and a B.Tech at LNMIIT, Jaipur. His technological forte is portal management and development.

He is currently working with Azilen Technologies, where he acts as a Technical Architect and Project Manager. His previous assignment was as a lead consultant with CIGNEX Datamatics. He was a core member of the open source group at TCS, where he started working on Liferay and other UI technologies. During his career, he has been involved in building enterprise solutions using the latest technologies with rich user interfaces and open source tools.

He loves to spend time writing, learning, and discussing new technologies. His interest in search engines and that small project on crawler during college time made him a technology lover. He is one of the authors of Test-Driven JavaScript Development, Packt Publishing. He is an active member of the Liferay forum. He also writes technical articles for his blog at TechD of Computer World (http://techdc.blogspot.in).

He has been a Liferay trainer at TCS and CIGNEX, where he has provided training on Liferay 5.x and 6.x versions. He was also a reviewer for Learning Bootstrap, Packt Publishing.

He can be reached on Skype at kravigupta, on Twitter at @kravigupta, and on LinkedIn at https://in.linkedin.com/in/kravigupta.

Seven blessing and my gratitude to my wife, Kriti. Despite tough times, she motivated me throughout the writing period. Support from my wife and my family, specially my father and mother-in-law helped me a lot. I can’t forget my co-author, Yuvraj, for his excellent support and understanding. He has been a great friend and help. Without him, it was not possible to finish. I would also like to thanks PACKT team, reviewers and editorial team for their cooperation. I truly appreciate you guys. Thank you.

Yuvraj Gupta is an author and a keen technologist with interest towards Big Data, Data Analytics, Data Visualization, and Cloud Computing. He has been working as a Big Data Consultant primarily in domain of Big Data Testing. He loves to spend time writing on various social platforms. He is an avid gadget lover, a foodie, a sports enthusiast and love to watch tv-series or movies. He always keep himself updated with the latest happenings in technology. He has authored a book titled Kibana Essentials with Packt Publishers. He can be reached at gupta.yuvraj@gmail.com or at LinkedIn www.linkedin.com/in/guptayuvraj.

I would like to thank my family and friends for encouraging and motivating me to write the book. I would like to thank the reviewers and the whole team of PacktPub who were involved in producing this book without their support it would never have been possible. I would like to thank everyone else who helped me directly or indirectly in writing this book. Also I would like to thank my teachers, professors, Gurus, schools and university for playing an important part in providing me with the education which has helped me to gain knowledge. Lastly but not the least I would like to thanks my co-author Ravi without whose help, guidance and support, the book would never have been completed.