JSON Schema: How to Validate API Responses Before They Break Your App

If you've ever shipped a bug because an API returned null where you expected a string, you've already experienced the problem JSON Schema solves. JSON Schema is a vocabulary that lets you describe the structure of your JSON data and validate it automatically. It's been around since 2009 and is now a draft standard under the IETF. If you work with APIs, configs, or any structured JSON, it's worth knowing. What JSON Schema actually does A JSON Schema is itself a JSON document that des...