This is script for Godot Engine, that validate JSON files by JSON Schema.

1. Create new JSONSchema object in your script (this script automatically register class in Godot ClassDB). Call its function validate(json_data, json_schema) where json_data - is your data in string format; json_schema - is your json_schema in string format.
2. Use helper class. Create new JSONFile object, open it as it described in ancestor File class (and don't forget to close afterall!) use schema_validator field to asigh validator class instance, use json_schema field to assign schema string, use functions load_data() and save_data() to work with your files.

Example:

var jf := JSONFile.new() jf.schema_validator = JSONSchema.new() jf.json_schema = to_json(some_schema_dictionary) jf.open("user://some_data.txt", File.WRITE) my_data = jf.load_data() #if my_data turned to String, check if it is error message jf.close()

More about schemas and validation here: https://json-schema.org