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g Easier! Making Everythin ™ n o i t a c i l p p A r e t t i w T t n e m p o l Deve ® Learn to: $response = $twitter->status->update ('Developing a killer new Twitter app!'); • Turn your ideas into applications • Develop apps with a high chance of success • Find out what users are looking for • Make money from your apps Dusty Reagan, @DustyReagan Creator of FriendOrFollow.com Twitter app www.it-ebooks.info Get More and Do More at Dummies.com ® Start with FREE Cheat Sheets Cheat Sheets include • Checklists • Charts • Common Instructions • And Other Good Stuff! To access the Cheat Sheet created specifically for this book, go to www.dummies.com/cheatsheet/twitterappdev Get Smart at Dummies.com Dummies.com makes your life easier with 1,000s of answers on everything from removing wallpaper to using the latest version of Windows. Check out our • Videos • Illustrated Articles • Step-by-Step Instructions Plus, each month you can win valuable prizes by entering our Dummies.com sweepstakes. * Want a weekly dose of Dummies? Sign up for Newsletters on • Digital Photography • Microsoft Windows & Office • Personal Finance & Investing • Health & Wellness • Computing, iPods & Cell Phones • eBay • Internet • Food, Home & Garden Find out “HOW” at Dummies.com *Sweepstakes not currently available in all countries; visit Dummies.com for official rules. www.it-ebooks.info Twitter Application Development ® FOR DUMmIES ‰ by Dusty Reagan www.it-ebooks.info Twitter® Application Development For Dummies® Published by Wiley Publishing, Inc. 111 River Street Hoboken, NJ 07030-5774 www.wiley.com Copyright © 2010 by Wiley Publishing, Inc., Indianapolis, Indiana Published by Wiley Publishing, Inc., Indianapolis, Indiana Published simultaneously in Canada No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning or otherwise, except as permitted under Sections 107 or 108 of the 1976 United States Copyright Act, without either the prior written permission of the Publisher, or authorization through payment of the appropriate per-copy fee to the Copyright Clearance Center, 222 Rosewood Drive, Danvers, MA 01923, (978) 750-8400, fax (978) 646-8600. Requests to the Publisher for permission should be addressed to the Permissions Department, John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030, (201) 748-6011, fax (201) 748-6008, or online at http://www. wiley.com/go/permissions. Trademarks: Wiley, the Wiley Publishing logo, For Dummies, the Dummies Man logo, A Reference for the Rest of Us!, The Dummies Way, Dummies Daily, The Fun and Easy Way, Dummies.com, Making Everything Easier, and related trade dress are trademarks or registered trademarks of John Wiley & Sons, Inc. and/ or its affiliates in the United States and other countries, and may not be used without written permission. All other trademarks are the property of their respective owners. Wiley Publishing, Inc., is not associated with any product or vendor mentioned in this book. 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THE FACT THAT AN ORGANIZATION OR WEBSITE IS REFERRED TO IN THIS WORK AS A CITATION AND/OR A POTENTIAL SOURCE OF FURTHER INFORMATION DOES NOT MEAN THAT THE AUTHOR OR THE PUBLISHER ENDORSES THE INFORMATION THE ORGANIZATION OR WEBSITE MAY PROVIDE OR RECOMMENDATIONS IT MAY MAKE. FURTHER, READERS SHOULD BE AWARE THAT INTERNET WEBSITES LISTED IN THIS WORK MAY HAVE CHANGED OR DISAPPEARED BETWEEN WHEN THIS WORK WAS WRITTEN AND WHEN IT IS READ. For general information on our other products and services, please contact our Customer Care Department within the U.S. at 877-762-2974, outside the U.S. at 317-572-3993, or fax 317-572-4002. For technical support, please visit www.wiley.com/techsupport. Wiley also publishes its books in a variety of electronic formats. Some content that appears in print may not be available in electronic books. Library of Congress Control Number: 2010921232 ISBN: 978-0-470-56862-0 Manufactured in the United States of America 10 9 8 7 6 5 4 3 2 1 www.it-ebooks.info About the Author Dusty Reagan launched a Web development company called Floating Head Studios in 2007. He developed the popular Twitter app Friend or Follow in 2008, and a few months later launched FeaturedUsers, a niche ad network for the Twitter ecosystem. Follow Dusty on Twitter at @dustyreagan. www.it-ebooks.info www.it-ebooks.info Dedication This book is dedicated to my parents, Randy & Sandy Reagan. Author’s Acknowledgments This book would not have been possible without the patience, love, and encouragement of my wonderful wife, Sharlee. She was beside me through the whole journey, proofreading every word, acting as my sounding board, and being my emotional rock during those tight deadlines. Thank you Shar. I love you! To all of my friends and family who put up with my social absence during the writing of this book, thank you for your encouragement and for enthusiastically accepting me back into your lives when I crawled out of my writing cave, back into the daylight. Thanks to Chris Treadaway for introducing me to Katie Feltman. Katie, you are a wonderful project editor and writer’s therapist. Thank you for guiding me through this wonderful experience. Pat O’Brien, thank you for your professionalism and editing expertise. Somehow you and Debbye Butler managed to make even my writing publishable. Thank you Jaisen Mathai (@jmathai) and Abraham Williams (@abraham) for your technical help with OAuth. You are both masters of your trade and exceptionally generous with your knowledge. Follow them on Twitter and pay attention to what they have to say about Twitter API happenings. Thank you for reading. I hope this book brings value to your endeavors. www.it-ebooks.info Publisher’s Acknowledgments We’re proud of this book; please send us your comments at http://dummies.custhelp.com. For other comments, please contact our Customer Care Department within the U.S. at 877-762-2974, outside the U.S. at 317-572-3993, or fax 317-572-4002. Some of the people who helped bring this book to market include the following: Composition Services Acquisitions, Editorial, and Media Development Project Coordinator: Sheree Montgomery Project Editor: Pat O’Brien Copy Editor: Melba Hopper Layout and Graphics: Ashley Chamberlain, Carl Byers, Joyce Haughey, Melissa K. Jester Technical Editor: Vince McCune Proofreader: Sossity R. Smith Editorial Manager: Kevin Kirschner Indexer: Becky Hornyak Acquisitions Editor: Katie Feltman Media Development Project Manager: Laura Moss-Hollister Media Development Assistant Project Manager: Jenny Swisher Media Development Associate Producers: Josh Frank, Marilyn Hummel, Douglas Kuhn, and Shawn Patrick Editorial Assistant: Amanda Graham Sr. Editorial Assistant: Cherie Case Cartoons: Rich Tennant (www.the5thwave.com) Publishing and Editorial for Technology Dummies Richard Swadley, Vice President and Executive Group Publisher Andy Cummings, Vice President and Publisher Mary Bednarek, Executive Acquisitions Director Mary C. Corder, Editorial Director Publishing for Consumer Dummies Diane Graves Steele, Vice President and Publisher Composition Services Debbie Stailey, Director of Composition Services www.it-ebooks.info Contents at a Glance Introduction ................................................................ 1 Part I: Catching Up to Twitter and App Development...... 5 Chapter 1: Catching Twitter’s Coat Tails ........................................................................ 7 Chapter 2: Web Development Refresher Course ......................................................... 13 Chapter 3: Setting Up to Create Twitter Apps ............................................................. 39 Part II: Ideation — Coming Up with an Idea ............... 45 Chapter 4: Getting to Know the Twitter Application Ecosystem .............................. 47 Chapter 5: Introducing the Twitter API......................................................................... 63 Chapter 6 : Logging In and Managing Your Account ................................................... 79 Chapter 7: Managing Users and Their Relationships ................................................ 105 Chapter 8: Communication Through Tweets ............................................................. 179 Chapter 9: Selecting an Idea ......................................................................................... 241 Part III: Creation — Developing Your Application ...... 249 Chapter 10: Selecting Libraries, Design Patterns, and Frameworks ....................... 251 Chapter 11: Hosting In the Clouds ............................................................................... 255 Chapter 12: Coding Your Application ......................................................................... 269 Chapter 13: Making It Pretty Makes It Credible ......................................................... 309 Chapter 14: What You Need to Know to Grow ........................................................... 315 Part IV: Monetization — Making Money with Your Application .............................................. 321 Chapter 15: How Twitter Makes Money ...................................................................... 323 Chapter 16: Advertising ................................................................................................ 327 Chapter 17: Monetizing with Other Models................................................................ 335 Chapter 18: Promoting Your Application ................................................................... 345 Part V: The Part of Tens ........................................... 355 Chapter 19 : Ten Traits of a Respectable Twitter Developer ................................... 357 Chapter 20: Ten Twitter API Tips ............................................................................... 361 www.it-ebooks.info Appendix A: Twitter API Reference............................ 365 Appendix B: Gallery of Twitter Applications ............... 395 Index ...................................................................... 413 www.it-ebooks.info