JSONskeem

JSONskeem is a tool for validating JSON data against a JSON Schema. It is a command-line application written in Python and can be used to ensure that JSON documents conform to a predefined structure and data types. This is particularly useful in software development for verifying configuration files, API request/response bodies, and data interchange formats.

The core functionality of JSONskeem involves taking two inputs: a JSON Schema and a JSON data file. The schema defines the expected structure, including the presence and types of keys, the data types of values (strings, numbers, booleans, arrays, objects), and constraints such as minimum/maximum values or regular expression patterns for strings. JSONskeem then processes the provided JSON data and compares it against the rules defined in the schema.

If the JSON data adheres to all the specifications in the schema, JSONskeem will report that the data is valid. Conversely, if any discrepancies are found, such as a missing required field, an incorrect data type, or a value that violates a constraint, JSONskeem will report the specific errors encountered. This detailed error reporting helps developers quickly identify and fix issues in their JSON data.

JSONskeem supports various JSON Schema drafts, allowing for flexibility in the types of validation rules that can be applied. Its command-line interface makes it easy to integrate into automated build processes and continuous integration/continuous deployment (CI/CD) pipelines, ensuring data integrity throughout the development lifecycle. The tool is open-source, contributing to its accessibility and community adoption.