Yes, it’s possible to get the “schema” of a JSON file using a tool called JSON Schema.

JSON Schema is a vocabulary that allows you to annotate and validate JSON documents, providing a formal description of the JSON format, including data types, required and optional fields, and constraints on the values that can be used.

To get the schema of a JSON file, you can write a JSON Schema file that defines the expected structure and properties of the JSON document, and use a JSON Schema validator to verify that the document conforms to the schema.

Here is an example of a JSON Schema file that defines a simple person object:

{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "type": "object",
  "properties": {
    "name": {
      "type": "string"
    },
    "age": {
      "type": "integer",
      "minimum": 0
    },
    "email": {
      "type": "string",
      "format": "email"
    }
  },
  "required": ["name"]
}

In this example, the schema defines an object with three properties: name (required), age (optional), and email (optional, with a format constraint). The $schema keyword indicates the version of the JSON Schema specification being used.

Once you have defined your JSON Schema file, you can use a JSON Schema validator tool like Ajv or JSONSchema.net to validate your JSON data against the schema and check if it conforms to the expected format.