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Integration of API management details (Part 4)

December 20, 2018
Eric D. Schabell
Related topics:
KubernetesContainersDevOpsMicroservices
Related products:
Red Hat OpenShift Container Platform

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    In Part 3 of this series, we started diving into the details that determine how your integration becomes the key to transforming your customer experience.

    It started with laying out the process of how I've approached the use case by researching successful customer portfolio solutions as the basis for a generic architectural blueprint. Now it's time to cover various blueprint details.

    This article takes you deeper into specific elements (API management and reverse proxy) of the generic architectural overview.

    Architectural details

    As mentioned before, the architectural details covered here are based on real customer integration solutions using open source technologies. The elements presented here are then the generic common architectural elements that I've identified and collected in a generic architectural blueprint. It's my intent to provide a blueprint that provides guidance and not deep technical details.

    Generic common architectural elements

    This section covers the visual representations as presented, but it's expected that they'll be evolving visually over time. There are many ways to represent each element in this architectural blueprint, but I've chosen icons, text, and colors that I hope are going to make it all easy to absorb. Feel free to post comments at the bottom of this post, or contact me directly with your feedback.

    Now let's take a look at the details in this architecture and outline the elements uncovered in my research.

    API management

    Gateways into an organization are split between managing API access and hiding the actual landscape behind accessing services in the organization. The first element I identified was a management platform for handling API gateway activities.

    Management platform for handling API gateway activities

    API management refers to how access is provided to an organization's services. It's the critical path for access internally to services as well as externally.

    Researching customer portfolio solutions revealed that API management provides access to service interfaces, applications, and other integration microservices. It's providing scalability, reliability, and interface usage metrics that customers evaluate during operations monitoring.

    In the generic architecture blueprint, it's managing interfaces from the following:

    • Front-end microservices (providing access to internal integration microservices)
    • Process facade microservices (providing access to automated integration processes)
    • Other applications (providing access to aggregated microservices or other internal applications)

    Part of the process of eventual access from external parties to internal services through interfaces involves hiding the specific networking details. To do this, we'll examine reverse proxies details.

    Reverse proxies

    This covers various solutions found in research, but all are delivering the same functionality.

    Reverse proxies

    The basic security is achieved through these proxies, because they are acting on requests from third parties. By retrieving requested resources for their clients, all external parties are prevented from having actual access to internal networks.

    Interactions on behalf of their clients provide them access to the following microservices:

    • Front-end microservices (providing access to internal integration microservices)
    • Process facade microservices (providing access to automated integration processes)
    • Other applications (providing access to aggregated microservices or other internal applications)

    These details are not all-telling, but should give you the guidance you need to get started in your own architectural situations.

    What's next

    This overview covers the API and proxy elements that make up our architecture blueprint for the omnichannel customer experience use case.

    An overview of the series on omnichannel customer experience portfolio architecture blueprint can be found here:

    • Part 1: How integration is key to customer experience
    • Part 2: Common architectural elements for modern integration architectures
    • Part 3: Integration of external application details
    • Part 4: Integration of API management details (this article)
    • Part 5: Integration of container platform essentials
    • Part 6: Integration of storage services
    • Part 7: Application integration details
    • Part 8: Dissecting several specific application integration architectures

    Catch up on any articles you missed by following one of the links above.

    Next in this series, taking a look at the details of specific elements in an architecture for omnichannel customer experience.

    Last updated: September 3, 2019

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