Ionic 2 Cookbook - Second Edition

Chapter 4. Validating Forms and Making HTTP Requests

In this chapter, we will cover the following tasks related to creating form input validation, mocked API calls, and payment pages using Stripe:

• Creating a complex form with input validation
• Retrieving data via a mocked API using a static JSON file
• Integrating with Stripe for online payment

Introduction

All mobile apps require taking user input and sending it to a backend server. A simple example is filling out a form, such as a user registration or contact form. The information is validated against a set of rules before being sent to the backend. Also, there are many other scenarios where the information is captured based on user behavior from the app, such as where they touch or how much time they ...