Chapter 15: Using Web Services with Appian Integrations
The application you built needs to connect to some of the existing systems at our company, Tarence Ltd. You will learn the basics of how modern web services work and how to consume them in a low-code way using Appian.
To be more specific, I will walk you through calling a web service to initiate an invoice posting process. Since we do not have an existing ERP system to play with, we will implement that service ourselves in Appian.
In this chapter, we will talk about the following topics:
- HTTPS, security, and JSON: Basic communication and data transfer protocols
- OpenAPI basics: Defining the structure of a web API
- Connected systems and integrations: Utilizing web APIs
- Using integrations: Use cases for web APIs
- Best practices: Considerations when using and providing web APIs
Let's get started and dive into the shallows of encrypted communication between web services.
