The document discusses Mule's JSON schema validator component. The validator evaluates JSON payloads at runtime to verify they match a referenced JSON schema from a local file or external URI. If validation fails, an exception is raised with details. The configuration wizard allows setting the display name, schema location, dereferencing mode, and adding notes and metadata. A screenshot example of the validator in a Mule flow is also provided.

1. Mule JSON Schema
Validator
By – Ankush Sharma

2. What is schema validator?
 A schema validator is a mechanism which is used to validate some data against its
defined schema. That schema may be from a web address, from file system or
anywhere.

3. Mule JSON Schema Validator
The JSON Schema validator evaluates JSON
payloads at runtime and verifies that they match
a referenced JSON schema. You can match
against schemas that exist in a local file or in an
external URI. If the validation fails, an exception
is raised with feedback about what went wrong
and a reference to the original invalid payload.

4. Mule JSON Schema Validator – Configuration
Wizard (General Tab)(Cont.)

5. Mule JSON Schema Validator –
Configuration Wizard (General Tab)
 Following are the properties on general tab –
 Display Name – The display name of the connector used for display purposes in Mule
flow.
 Schema Location – Location of the schema. It may be a web URL, file system URL etc.
 Dereferencing - Draft v4 defines two dereferencing modes, canonical (default) and inline.
This attribute is ignored if validating a v3 draft.

6. Mule JSON Schema Validator – Configuration
Wizard (Notes and Meta-data Tab)
 Notes Tab – Notes tab is used to add special notes for Mule JSON Schema
validator filter.
 Meta-data Tab – This tab is used to add Meta-data to Mule JSON schema validator
component.

7. Flow screenshot

8. Thank You!