Cloud Native Infrastructure: Patterns for Scalable Infrastructure and Applications in a Dynamic Environment by Justin Garrison & Kris Nova

Author:Justin Garrison & Kris Nova [Garrison, Justin]
Language: eng
Format: azw3
Publisher: O'Reilly Media
Published: 2017-10-25T04:00:00+00:00

This new pattern makes testing infrastructure very quick, and usually inexpensive. An engineer can begin to develop a large arsenal of happy and sad tests for even the most bizarre application input. Furthermore, the testing collection can grow over time; in the unfortunate scenario where an impostor API object trickles through to the environment, an engineer can quickly add a test to prevent it from happening again.

Input validation is one of the most basic things to test. By writing simple validation into our application that checks for sane values, we can begin to filter out the input of our program. This also gives us an avenue in which it is easy to define meaningful errors and return an error quickly.

Validation offers confidence without making you wait for infrastructure to be mutated. This creates a faster feedback loop for engineers developing against the API.

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