Popular API architecture styles
API developers tend to use one or more API architecture styles based on the business functionality and simplicity in implementation:
Figure 3.3 – Frequently used API styles
The commonly used styles are explained in the next sections. Â
The tunneling or RPC style
The tunneling, or Remote Procedure Call (RPCs), style is the oldest architecture style and has been widely used for building API interfaces. The RPC style follows the client-server model, wherein the server exposes a set of endpoints that serve as remote functions:
Figure 3.4 – RPC style
The clients interact with these endpoints using a well-defined message format organized using XML. Both the request body and response output of these APIs are in XML. This style is supported by a wide range of transport and communication standards, such as HTTP, TCP/IP, and JMS. The APIs may use encryption and decryption techniques...
