Book Image

Digital Transformation and Modernization with IBM API Connect

By : Bryon Kataoka, James Brennan, Ashish Aggarwal
Book Image

Digital Transformation and Modernization with IBM API Connect

By: Bryon Kataoka, James Brennan, Ashish Aggarwal

Overview of this book

IBM API Connect enables organizations to drive digital innovation using its scalable and robust API management capabilities across multi-cloud and hybrid environments. With API Connect's security, flexibility, and high performance, you'll be able to meet the needs of your enterprise and clients by extending your API footprint. This book provides a complete roadmap to create, manage, govern, and publish your APIs. You'll start by learning about API Connect components, such as API managers, developer portals, gateways, and analytics subsystems, as well as the management capabilities provided by CLI commands. You’ll then develop APIs using OpenAPI and discover how you can enhance them with logic policies. The book shows you how to modernize SOAP and FHIR REST services as secure APIs with authentication, OAuth2/OpenID, and JWT, and demonstrates how API Connect provides safeguards for GraphQL APIs as well as published APIs that are easy to discover and well documented. As you advance, the book guides you in generating unit tests that supplement DevOps pipelines using Git and Jenkins for improved agility, and concludes with best practices for implementing API governance and customizing API Connect components. By the end of this book, you'll have learned how to transform your business by speeding up the time-to-market of your products and increase the ROI for your enterprise.
Table of Contents (21 chapters)
1
Section 1: Digital Transformation and API Connect
5
Section 2: Agility in Development
15
Section 3: DevOps Pipelines and What's Next

Chapter 12: User-Defined Policies

API Connect (APIC) is designed to provide a user-friendly, drag and drop experience for creating APIs within the Assembly screen of the graphical user interface (GUI). This provides a very efficient means to create, expose, and secure your APIs without having to know all of the underlying details. In most cases, the work is done for you under the hood. APIC provides a plethora of policies that can be used within the processing of your API requests and responses, ranging from transformations to custom code (XSLT or GatewayScript), to validation policies. Although this drag and drop functionality provides a simple interface to get your APIs created quickly, there may be times when you might feel a little restricted and want to customize your own policies. Perhaps you have a set of built-in policies that you use throughout many of your APIs and would like to package up as one reusable policy. Or maybe you are very familiar with the DataPower product itself...