When was event driven programming developed

The one-to-one nature of REST means that a separate REST call is needed for every endpoint which makes it hard to extend the architecture without modifying the clients. I have seen that it is common to build a distributed monolith instead of the intended decoupled microservice architecture, and this leads to a lot of time and money wasted. On the other hand, an event-driven system reduces the amount of coupling between microservices. This means that a message sender does not need to know about any consumer; the only coupling in EDA is a topic hierarchy structure.

Loose coupling enables easier scaling of the system and handling of traffic spikes through shock absorbing and queuing mechanisms. In message-oriented systems, applications produce events without controlling how the consumption of those evens is done.

This contrasts REST-based systems that rely on synchronous tight coupling between the client and the server. Eventual consistency is intuitively handled in an event-driven system using a message broker, enabling parallel execution of microservices and making sure that each microservice will eventually come to a state of completion. This allows the system components to eventually become consistent with the state of the system without the need of a two-phase commit or distributed transactions.

However, complexity of handling asynchronous messages when using event brokers could be a challenge. This challenge is associated with the adoption of any new architecture, which like all other developers, a healthy challenge is encouraging!

Another drawback of an event-only driven system is the coupling to the messaging middleware infrastructure, so when adopting an messaging based architecture one should take into account the multi protocol compatibility along with interoperability with other message brokers. Large distributed systems and distributed architecture microservices are built on a polyglot of technologies and architectural patterns. An architecture that combines REST and event-driven architecture would deliver the full potential of real-time development and interoperability.

Event-enabling a REST architecture allows you to combine traditional REST interactions with publish-subscribe communication, with a message broker acting as the middleware layer for message flow. As developers in this modern world, we are no longer just concerned with applications that we write in a silo. Considering the effects of our applications on other parts of the business is becoming more important than ever as the notions of DevOps, microservices, and integrations all become every-day terminologies that a regular developer in the tech industry would hear and use.

Furthermore, creating applications that would support a spike in traffic at any point in time is becoming more crucial. This is my personal event-driven development journey, and like all tech journeys a developer chooses to take, there is always something to learn.

Thanks for taking the ride with me. Join the Solace Community or find me on Twitter tweetTamimi! Tamimi enjoys educating people about and exploring innovative ways of integrating Solace technologies with emerging tools, technologies and techniques.

Prior to Solace, Tamimi played a role at Qlik, a leading provider of business intelligence and data analytics solutions, and was an automation specialist for You.

His experience in those fields, combined with his event-driven architecture expertise, makes Tamimi highly sought after as a guest speaker on podcasts and — before COVID and hopefully soon again — in-person speaking engagements. Tamimi enjoys all things tech, and has been actively supporting social entrepreneurship in the Ottawa-area tech community for over a decade.

He currently serves as director of a non-profit called Connected Canadians that aims to reduce isolation amongst older adults by promoting digital literacy skills and providing technology training and support. Subscribe to Our Blog Get the latest trends, solutions, and insights into the event-driven future every week. Find out on December 7! Skip to Main Content. Subscribe Now! The origin and evolution of web services Before taking your seat on this event-driven development train, let me give you a quick history lesson on why REST APIs are so popular and how the industry adopted this protocol for most web applications.

See all posts written by Tamimi Ahmad. Learn more. REST Anyone who has ever done yard work as part of a team can understand the. Five Challenges in Implementing REST Based Microservices Microservices is an architectural style that structures an application as a collection of independently deployable.

How to Achieve Hybrid Cloud with Cloud and On-Premises Integration [Updated ] Everybody wants to take advantage of the cloud to save money, make their infrastructure more.

How to Develop Microservices: 7 Considerations for Developers What are the are most important things for developers to know when it comes to. Best of Techopedia weekly.

News and Special Offers occasional. Event-Driven Program. Techopedia Explains Event-Driven Program. An event-driven program is also known as an event-driven application. Techopedia Explains Event-Driven Program The idea in event-driven programming is that the program is designed to react. Synonyms Event-Driven Application. Share this Term. Java Event Handler. Tech moves fast! Stay ahead of the curve with Techopedia! This is because event processing is very different from typical transaction processing.

An event often only requires a simple response rather than complex processing. However, events can originate anywhere, and the frequency of events can range from zero to tens of thousands per second. Furthermore, being cloud-based, serverless computing is less likely to fail if some cloud resources are lost. Pay-per-use costs associated with serverless have both advantages and disadvantages.

The advantage is that you only pay for what you use. The disadvantage is that if there are a lot of events, your costs can rise dramatically. Consequently, serverless becomes expensive if you underestimate the number of events. If cost is an important consideration, there is the alternative of using container-based event processing instead of serverless, where the event-handling functions are placed in containers on a single host or VM.

This creates a ceiling cost on the single host.