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Getting Started with hapi.js by John Brett

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Introduction to joi

As mentioned earlier, joi (https://github.com/hapijs/joi) is an object schema validation library used in nearly every module throughout the hapi ecosystem. If you tried adding an incorrect configuration object to a connection, a route configuration object, or when registering plugins, and found that the server threw a detailed validation error, that was joi at work. When the hapi team were going for a configuration-over-code approach for building a framework, having an excellent object schema validator to validate all the configuration objects and provide detailed errors was important. The same goes for when building an application.

Similar to testing, validation is one of those things that developers might not give the full ...

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