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What's the difference between an API proxy vs. API gateway? And which one should you use?
In this blog, we demystify:
An API proxy acts as a gateway between your developers and backend services. It's an intermediary that makes requests on behalf of developers. And it sits between your application and backend services. Essentially, it's a thin API server.
What this means to us in the API world, is that when you’re using an API proxy, your API had better already exist. An API proxy provides a new endpoint for an existing API, but it can't do everything an API gateway can do.
Both an API proxy and API gateway provide access to your backend services. An API gateway can even act as a simple API proxy. However, an API gateway has a more robust set of features — especially around security and monitoring — than an API proxy.
An API proxy is basically a lightweight API gateway. It includes some basic security and monitoring capabilities. So, if you already have an API and your needs are simple, an API proxy will work fine.
But there's only so much an API proxy can do. It really can’t do anything particularly sophisticated with content or routing. And it definitely can't do transformation, mediation, or orchestration.
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API proxies and API gateways are critical in enterprise API management — and digital transformation. In this white paper, you'll learn how to leverage enterprise API management to drive your digital-first initiative forward.
📕 Get the White Paper
You should use an API gateway because it provides a single entry point across multiple APIs. It delivers robust security, including rate limiting. And it can even be used with external consumers in support of microservices and to secure the microservices mesh. Plus, an API gateway can act as an API proxy.
An API gateway provides a much richer set of capabilities than an API proxy. When you use an API gateway to expose an API, you don’t even need to start with an API. You can take multiple existing services of varying types, and use the gateway to construct a modern, well-structured API.
The gateway, of course, still offers the same capabilities that an API proxy would offer for security and monitoring. But it takes these and other capabilities much further.
Unlike an API proxy, an API gateway offers comprehensive service orchestration, transformation, mediation, and DoS prevention (including things like antivirus and threat detection). It can also offer incredibly rich content and transport security capabilities that go far beyond anything a simple proxy can offer.
An API gateway is an important part of the API lifecycle.
An API proxy may be a good solution for taking the first few simple steps with a basic API or two. But to meet real enterprise API needs you’re going to need an API gateway.
How do vendors with proxy servers do things like SOAP to REST mediation? It’s simple. They write code that their customers have to support — or pay for updates — anytime something changes.
Using an API gateway, like the Akana API Gateway, you can turn your existing services into exceptional APIs with sophisticated security and monitoring enabled in a matter of minutes. Try that with a proxy and you’ll quickly find yourself investing a good few weeks or even months writing code — only to do it all over again every single time you need to make a minor change.
A proxy server can't do orchestration. But an API gateway can provide orchestration.
You can use your gateway for API orchestration to decide how to service each request, and construct service calls appropriately.
An API gateway can:
A proxy server can't do integrations like a gateway can.
You can use an API gateway instead of ESB as your integration server. API gateways are more efficient, more secure, and help you modernize your applications. Explore more integration technologies >>
A well-designed and implemented gateway, like the Akana API Gateway, will automatically optimize its configuration depending on how it’s being used. It can act as a simple, lightweight proxy, offering exceptional performance. So, you’d better make sure you choose a gateway that knows when it needs to act like a nice simple proxy.
The Akana API gateway is a key component of the Akana API platform. It's the best choice to accelerate digital transformation in the enterprise — without sacrificing security.
That's because Akana:
That's why a large bank chose Akana's API gateway for mediation and orchestration. With Akana, they were able to quickly mediate from SOAP to REST using declarative out-of-the box mediation policies. They were also able to create new APIs from scratch by orchestrating the integration of multiple services together using a configuration — not coding — approach.
See for yourself what Akana can do for you. Watch the on-demand Akana demo to see the Akana API gateway in action.
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