June 2016
Intermediate to advanced
436 pages
10h 37m
English
Content preview from Spring MicroservicesBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Zuul proxy as the API gateway
In most microservice implementations, internal microservice endpoints are not exposed outside. They are kept as private services. A set of public services will be exposed to the clients using an API gateway. There are many reasons to do this:
- Only a selected set of microservices are required by the clients.
- If there are client-specific policies to be applied, it is easy to apply them in a single place rather than in multiple places. An example of such a scenario is the cross-origin access policy.
- It is hard to implement client-specific transformations at the service endpoint.
- If there is data aggregation required, especially to avoid multiple client calls in a bandwidth-restricted environment, then a gateway is required ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.