API Gateways deliver critical runtime capabilities in enterprise-wide API management infrastructures. However, such runtime capabilities must also be complemented with other design-time and governance capabilities in support of activities such as APIs lifecycle management, API design, policy definition and implementation, deployment, retirement, monitoring, and so on.
The aforementioned design-time/governance capabilities, are often offered by different API management vendors as a separate Management Service infrastructure that augments/complements the runtime infrastructure (API Gateways). Needless to say in order for runtime and design-time/governance infrastructure to work together cohesively as a collective whole, there must be some sort of effective and reliable communication between these two main components.
Whereas some products like for example the Oracle API Platform Cloud Service, deliver a phone-home approach for API Gateways to communicate with the management infrastructure, other vendors implement a push approach whereby the Management Service is responsible for establishing and handling the connection to the API Gateways.
Both approaches are fundamentally different and understanding how such differences can impact/influence a solution becomes even more critical as the need for API Gateways increase e.g. as a result of adopting cloud or Microservices Architectures.
Furthermore, as cloud adoption continues to rocket, vendors also offer Management Service capabilities as a PaaS cloud service. This is important and not trivial as it means that communication between the PaaS-based management infrastructure and the API Gateways must be in placed prior implementing the solution.
This article compares these two main communication strategies and highlights key differences including pros and cons (from the point of view of the author).Read the complete article here.
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