What is schema validation and can you provide examples?

What is schema validation and can you provide examples?

Schema validation is the process of ensuring that data conforms to a defined structure or format. For example, in JSON, a schema can specify that a certain field must be a string, while another must be an integer.

Can you show me a JSON schema example?

Sure! Here's a simple JSON schema example:

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

What happens if the data doesn't match the schema?

If the data doesn't match the schema, it will be considered invalid. This can lead to errors in applications that rely on that data, preventing them from processing it correctly.

Are there tools available for schema validation?

Yes, there are several tools available for schema validation, such as Ajv for JavaScript, JSON Schema Validator for Java, and many others that can help validate data against a defined schema.