Swagger Validator

Overview

Validates swagger.yaml file. Validation are done assuming JAX-RS resources and Jackson POJOs.

The default validations include:

• Resources validations:
  • The resource class exists (See x-javaClass)
  • The resource class annotated with @Path and that the value matches.
  • For each operation validate that:
    • Exists method in a resource annotated with the proper annotation (e.g. GET, POST, etc.)
    • Operation is tagged.
• Definitions validations:
  • The POJO exists (See x-javaClass)
  • Property from definition matches a property in POJO (By default property in Swagger equals to field in POJO)
  • POJO doesn't use forbidden types (e.g. using primitive types is forbidden)
  • Warning is printed if unrecommended type is used.

Validator Elements

The Swagger Validator expects additional elements to be present in the swagger.yaml to perform the validations.

x-javaClass

x-javaClass defines the fully qualified name of the desired class. This is used to validate that the relevant class really exists in the classpath and it's a starting point for addition validations.

Download

The Swagger Validator is distributed using Maven Central.

Maven Dependency

<dependency>
  <groupId>com.kenshoo</groupId>
  <artifactId>swagger-validator</artifactId>
  <version>${swagger-validator-version}</version>
</dependency>

Running

The SwaggerValidator is a simple Java class. It must be run in the classpath containing all the resources and definitions.

Example

SwaggerValidator swaggerValidator = new SwaggerValidator(getClass().getResourceAsStream("/swagger.yaml"));
swaggerValidator.validateDefinitions();
swaggerValidator.validateResources();

See unit tests for more examples.

Customization

SwaggerValidatorConf conf = new SwaggerValidatorConf() {
    @Override
    public Set<Class<?>> getForbiddenClasses() {
        return Collections.emptySet();
    }
};
SwaggerValidator swaggerValidator = new SwaggerValidator(getClass().getResourceAsStream("/swagger.yaml"), conf);
swaggerValidator.validateDefinitions(); // forbidden types won't be validated