OpenLegacy Microservices

    Considering microservices to digitize your legacy systems?
    We can help.

    Do you have an immediate need to quickly create digital services, but have longer term goals of simplifying your legacy architecture or expanding your Cloud strategy?

    Touted by analysts like Gartner and Forrester and used by organizations like Amazon, NetFlix, Nike, and eBay, microservices are now a critical part of many enterprise cloud and digital strategies.

    What is a microservice and a microservice architecture?


    A microservice is a small, self-contained piece of code that executes a business function. It has a clear interface, and private data. Microservices can be written in many different programming languages and is one component in a service-oriented architecture. A microservice is decoupled and easily deployable inside a container into any environment.


    A microservice architecture is a set of loosely coupled microservices that implement a larger set of business functions. Microservice architectures are the defacto standard for developing cloud-based and cloud-native applications. The term used for this type of solution is cloud microservices.


    Microservices are easy to continuously integrate, deploy and test—plus software teams can work on each one independent from another. Microservices support continuous delivery and service discovery in environments from serverless cloud computing to data centers.

    Features and Benefits

    feature business benefits iT benefits
    Modularity Build new products and offering at a fraction of the time and cost Reduces interdependence making applications easier to develop, test, and update
    Small, independent teams Transform IT from business anchor into engine Enable small teams to develop, scale and deploy services independently
    Scaling Efficient growth of services Build new products and offering at a fraction of the time and cost
    Easier migration Reduce time and cost associated with moving from legacy systems Accelerate future projects since APIs are microservices
    Modern Development Paradigms Quickly iterate to ever changing market needs Enables agile and DevOps software development practices
    Global API Deliver a unified user experience regardless of device, channel, or location Enable organizations to develop a global strategy
    Load Balancer No long waits for web services to return results Don’t overload one system and support a modern technology stack
    Flexibility Easier to manage your enterprise applications Support for different programming languages

    How to best use microservices to modernize your legacy system

    The architectural style you choose can greatly impact your development, innovation, and business capabilities.

    Compared to a monolithic architecture representing an entire system, microservices are faster to build, test, deploy, and update. Now, different parts of your development team can work concurrently on your products, in an agile manner, and deliver value to your customers immediately.

    The key to digital transformation success is finding ways to access the mission-critical data stored inside data management platforms on legacy systems. Microservices, with APIs, make complex development easier. Microservice APIs also are easily accessed through an API gateway.

    Microservices make testing easier because each unit is a self-contained individual service. You only need to test the ones that change. Each microservice is a small, separately loadable entity so deployment is simpler.

    Why aren’t companies building microservices architectures for their legacy systems on their own?

    Creation Complex
    There are complicated inter-relations between elements in a monolithic application
    Automatic generation of the microservice and API
    Metadata parsing Complex
    Need legacy systems expert’s help due to complex applications software architecture
    Anyone can use our pre-built legacy system specific connectors
    Deployment Moderate
    Need to add in wrappers for open source tools like Docker and Kubernetes.
    Pick from a variety of options and OpenLegacy does the rest

    Learn the basics behind microservices, the pros and cons of using them, and even get our help getting started with API integration with our on-boarding services.


    Eight reasons to choose OpenLegacy for microservices.


    One tool. One step Create a microservice and an API automatically. OpenLegacy’s Platform creates APIs contained within microservices, with a built-in connection to the legacy system. In one step, create a legacy API and expose business processes. One tool, one step, and a giant leap for your organization.


    No middleware to mess with OpenLegacy’s architecture does not require any middleware such as ESBs and MQ, shortening the development and maintenance cycle and leading to significant cost savings. The entire application also executes faster without middleware and ends the reliance on additional 3rd party software.


    Automatically create microservices Automatically generate a microservice as a self-contained standard Java component. It features a standard interface which deals with a small problem domain and has an SDK, which refers back to a business process or data on the legacy applications.


    Remove the chains and be free at last. With decoupled microservices, you can launch the digital services you need, while making easy to migrate off your legacy system in the future because the microservice is a defined interface that is easy to leverage.

    microservice best practices No modifications to legacy systems

    No modifications to legacy systems. OpenLegacy generates standard, lightweight code for microservices, and does not require modifications to the backend applications. In this case, we like being called a ‘lightweight.”


    Avoid decentralized application monoliths. Our approach is quite different than “Integration microservices” offered by other vendors, where you end up with a “decentralized monolith” and microservices are dependent on each other. Who needs that?

    microservices Decouple and standardize

    Decouple and standardize. OpenLegacy provides an automated and standard way of functionally-decoupling a monolithic core application by creating a microservices architecture without changing the core application.


    Oh, and also stunning performance. Since we avoid complex layers of architecture, our microservices are extremely fast. In fact, one of the largest banks in the world reported transaction response time improved by 70X.

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