Testing and validating JSON API is an important aspect of running a quality web service, but managing checks for large and diverse responders can be difficult. Using JSON schema to construct a model of your API response makes it easier to validate your API according to the valid JSON return type.

API consumption is on a high time everywhere from businessmen to personal projects, and they are constantly evolving to support the new features, bug fixing, and changing functionality to check valid JSON.

If you are tasked with testing your API code, you would realize the importance of having a Schema. It describes the data your application or service will accept and the data it will return. It is useful for automated testing and validating responded data.

What is JSON Schema?

JSON Schema is a vocabulary that allows you to interpret and validate JSON documents. It describes your existing data format with clear, human, and machine-readable documentation with complete structural validation. Online tools to check valid JSON are reliable to use when for cross-checking.

In modest terms, JSON schema is a contract for your JSON document that defines the expected data types and format of each field by checking valid JSON in the response. Naturally, you can recurse into each user and describe the format of its field as well.

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