What are event-driven APIs?

event-driven APIs

APIs have become an economic imperative for many businesses. But APIs solely based on request-response style interactions are limited by the fact that each system must know what they want from the other. Today’s modern services often rely on other products or services from their eco-system. In this context, the request-response integration style can quickly reach a dangerous complexity as it requires an exponential number of point-to-point integrations between the different systems involved. Event-driven APIs enable apps to integrate many products and services based on equivalence around event-driven interactions.

Event-driven APIs

The difference between events (“this happened”) and requests (“do this”) offers benefits in the looser coupling of components. One advantage of this is an event subscriber need not know when the event occurred. Event-driven APIs will also invoke subscriber’s services and let them know about events upfront, this enables companies to integrate secure real-time data quickly and efficiently.

By supporting event-driven APIs, for example, services such as content collaboration, MFT or B2Bi, can leverage APIs and gain strong benefits. This advances the company in the long term.

Event-driven architecture (EDA)

Event-driven architecture is the key to unlock the value of near real-time integrations. This is why event-driven APIs are mandatory to make that happen across an eco-system of partners and customers. Read more about moving beyond the regular event types as your event-driven architecture matures. 

For example, with event-driven architecture, service execution and replication are loosely coupled to produce more receptiveness. With this capability, you can bring about connections between events and microservices. Unfortunately, sometimes communication can give way. But with event-driven APIs, the operability between freely joined services and the mediation between events and microservices makes event-driven APIs very attractive to any developer because it heeds better results. Learn more real-time look at event-driven architecture.

Event-driven architectures are also appealing because of their asynchronous nature. Event-driven APIs are playing an important role in EDA as it enables developers to craft easily new components (e.g., microservices) that are being triggered or triggers a new event in the systems. Components don’t have to wait for synchronous delivery anymore. This is hugely beneficial, as eliminating the need to poll endpoints (aka polling madness) frees resources from otherwise wasteful purposes, reducing both general hardware requirements and call-specific overhead.

Major trend

There is a major trend on the rise in data usage. With the growth in capacity, speed, as well as a different mix of data that is being used for decisions being made, Developers are now embracing event-driven APIs, The benefit is Developers can now process a large amount of streaming of events that work better and with ease.

Read more about the layers of event-driven API awareness.