February 2016
Intermediate to advanced
240 pages
5h 46m
English
Content preview from Practical DevOpsBecome 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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How to keep service interfaces forward compatible
Service interfaces must be allowed to evolve over time. This is natural, since the organization's needs change over time, and service interfaces reflect that to a degree.
How can we accomplish this? One way is to use a pattern that is sometimes called Tolerant Reader. This simply means that the consumer of a service should ignore data that it doesn't recognize.
This is a method that lends itself well to REST implementations.
Note
SOAP, which is an XML schema-based method to define services, is more rigorous. With SOAP, you normally don't change existing interfaces. Interfaces are seen as contracts that should be constant. Instead of changing the interface, you define a new schema version. Existing ...
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