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The role of API’s and ESB’s in the Modern Integration


  The modern advancement of Application Programming Interfaces (APIs) plays a crucial role in creating the “API economy” through open interoperable standard and web-enabled communication protocol. The API-driven development approach became the de facto development best practice for integration.


  At the backbone of many enterprise’s Integration is the ESB (Enterprise Service Bus) that provides reliable, decoupling, and guarantee the messaging for inter-service communication. With careful design, API and ESB pattern can work together to create the best solution.


Integration paradigms have changed

  Given the popular adoption of a cloud-first and partner-focus ecosystem, integration technologies and approaches have advanced considerably in the last few years. These are more advanced patterns include advancements such as:

  • Event-Driven Architecture to further decouple the messaging communication into streaming events

  • Service Mesh that combines the API approach to east-west service communication with ESB

  • Microservice Architecture to create light-weight and highly decoupled, scalable integration units

  • Serverless Architecture to take the paradigm even further with on-demand, responsive and scale-to-zero microservices.

  Given this complexity and specialisation of modern integration needs, many enterprises lack the experienced experts to architect, design, and develop a fit-for-purpose integration solution. is vital in optimising the value of Integration service.

Read more about API Driven Automation

Getting more out of your API / ESB connectivity

  Clients want to migrate their solution from a legacy to target integration platform that enables a microservice architecture in addition and supplementing the monolithic application.

  They want to create a partner eco-system through standardised and secure APIs. This includes the design and development of fit-for-purpose integration patterns, such as API, ESB, SOA, EDA, B2B, that minimise the solution complexity while maximising the reusability.

Read more about Leonardo and Red Hat

Leonardo's API and ESB Expertise

  Leonardo’s long history of delivering integration means we understand how the API/ESB lifecycle practically impacts modern business- alongside role that associated technologies/platforms play in creating cohesive business solutions and outcomes. Leonardo’s team of API and ESB experts can help you:

  1. Implement an Integration Solution

    1. Integration Solution Design and Development. Design, Build, and Unit Testing the integration solution

    2. Develop Integration Solution CI/CD Automation. Architect and Deploy CI/CD platform. Design and build automated integration testing and CI/CD pipeline.

  2. Provide Integration Advisory

    1. Provide ad-hoc advisory on integration strategy, architecture, platform, and governance

    2. Provide open-source integration technology advisory

    3. Provide architecture design for modernising legacy monolithic application.



  We can help! Contact us for a free discovery session


  Do you have an upcoming project or outcome you'd like to discuss?

  Do you need help with your business design?

  Are you trying to figure out how automation impacts your business?

  Are you limited by your current system integrations? 

  Are you trying to manage your containerised platform? 


Get in touch with Leonardo. One of our amazing team will reach out to you to talk through your challenges and needs.