Validation module, schema and APIkit validation
How to pick a Validation module operation and its error type, collect several failures with the All scope, validate XML against XSD or RELAX NG and JSON against a JSON Schema, and tune APIkit's specification-driven request validation without turning it off.
Correctly apply methods for validating data in Mule applications.
~7 min read · 6 practice questions
What the exam expects
- Choose the Validation module operation that expresses a rule (IP lists, collections, Boolean expressions) and predict the error type it raises.
- Collect every failure into one error with the All scope and hand the handler the error type it expects.
- Validate XML with the XML module against XSD or RELAX NG, and JSON with the JSON module against a JSON Schema.
- Tune APIkit for REST request validation, such as its multipart size limit, while keeping validation on.
Validation module: the module whose operations fail with a VALIDATION error when content misses a criterion. All scope: a Validation scope that runs nested validations and raises one combined error. Schema language: the XML module setting that picks W3C (XSD) or RELAX NG. APIkit Router: the APIkit component that validates requests against the API specification (Validation module, XML Module Reference, APIkit reference).
Key facts
- Detail
- Every error is a child of
VALIDATION:VALIDATION
- Detail
- Defined globally and referenced, or inline per validator
- Detail
VALIDATION:INVALID_BOOLEAN
- Detail
VALIDATION:EMPTY_COLLECTION
- Detail
- Runs every validation; one
VALIDATION:MULTIPLE; novalidation:exception
- Detail
- Use the scope's Error Mapping
- Detail
- W3C (default) or RELAXNG
- Detail
XML-MODULE:SCHEMA_NOT_HONOURED
- Detail
JSON:SCHEMA_NOT_HONOURED
- Detail
apikit.multipart.size.limit, default 268435456 bytes
Sources for this section (6)
- Validation referencedocs.mulesoft.com (opens in a new tab)
- Validation examplesdocs.mulesoft.com (opens in a new tab)
- XML Module Referencedocs.mulesoft.com (opens in a new tab)
- XSD validationdocs.mulesoft.com (opens in a new tab)
- JSON schema validationdocs.mulesoft.com (opens in a new tab)
- APIkit referencedocs.mulesoft.com (opens in a new tab)
- Which two error types can Is allowed ip throw?
- When the validators inside an All scope run, on which thread and why does their order not matter?
- When an APIkit Router leaves
parserat its default, which parser reads the API? - Why can validating a very large JSON document with the JSON module's Validate schema be risky?
The questions are free to read. Answers with their sources and self-grading are included with the pack.
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