In a nutshell, an API gateway is a multifaceted proxy that accomplishes a variety of integration, intermediation, and enrichment tasks. It has all the information about the main microservice endpoints in order to correctly and cognitively mediate, route, and invoke a respective endpoint. This is performed after the initial request verification, content filtering, authentication, and authorization.
A typical API gateway has to have the following ingrained and serviceable competencies. The common features of any API gateway solution include authentication and authorization, message enrichment, remediation, process-based composition, traffic routing and management, and service monitoring.
An API gateway is bound to provide a single and unified API entry point across one or more internal APIs. There can be different distributed sources, such as client...