Ultra Low Latency API Management for Microservices with Red Hat 3scale

In this article, we provide a solution that enables almost latency free API management for Java-based microservices APIs. We build on Manfred Bortenschlager’s white paper Achieving Enterprise Agility With Microservices And API Management. We provide a practical solution for adding the management layer Manfred outlines to internal microservice-to-microservice API calls.

API Management and Microservices

Figure 1 – a typical microservices architecture with depictions of externally and internally consumable microservices

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In the white paper Manfred describes a typical microservices architecture consisting of:

  • A perimeter service layer that is typically implemented by an API gateway which manages and secures components that follow the backend for frontend (BFF) pattern. The perimeter service exposes APIs to external consumers.
  • Internal microservices that are clustered into functional elements and communicate via APIs.

The most common and most decoupled way to achieve API management is through deployment of API gateways on the API provider’s infrastructure. These gateways act as traffic controllers which authenticate, authorize, and report on API traffic to the 3scale API Management Platform. These extensive management features are achievable with very low latency overhead through our caching and asynchronous architectural features. Additionally the gateways provide excellent routing and security protections such as defense against DDoS attacks and more.

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APIs Are The New Language of Collaboration

“Survival of the fit,” in Darwinian evolutionary theory, describes the mechanism of natural selection. The biological concept of fitness is defined as reproductive success. But could this also apply to modern business? Sustained growth might be the criterion for fitness in a business context. So why is sustained growth so difficult to achieve? Surprisingly, it is not for the lack of ideas but lack of ability to adapt to change and competition.

The fittest business can quickly innovate and adapt to competition and it can use its core competencies to extend itself in new ways. These organizations are often lean, mean, and learning machines using application programming interfaces (APIs). They are built on a foundation of cloud, mobile, big data analytics and social computing and they are generally connected to the internet of things, to extend and monetize the organization’s core assets for growth and  new value and revenue streams.

Even organizations born in different eras of digital transformation (mobile, internet-based, and client/server) that are successfully using APIs to achieve disruptive growth in their respective industries.

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