Validate a swagger spec

The toolkit has a command to validate swagger specifications for you. It includes a full json-schema validator and adds some extra validations to ensure the spec is valid.


To validate a specification:

swagger validate [http-url|filepath]

Swagger 2.0 resources

Semantic Validation

All the rules the validator tool supports:

  • validate against jsonschema
  • validate extra rules outlined here
Rule Severity
definition can't declare a property that's already defined by one of its ancestors Error
definition's ancestor can't be a descendant of the same model Error
each security reference should contain only unique scopes Warning
each security scope in a security definition should be unique Warning
path parameter declarations do not allow empty names (/path/{} is not valid) Error
each api path should be non-verbatim (account for path param names) unique per method Error
each path parameter should correspond to a parameter placeholder and vice versa Error
each referencable definition must have references Warning
each definition property listed in the required array must be defined in the properties of the model Error
each parameter should have a unique name and in combination Error
each operation must have an unique operationId Error
each operation should have only 1 parameter of type body Error
each operation cannot have both a body parameter and a formData parameter Error
each reference must point to a valid object Error
every default value that is specified must validate against the schema for that property Error
every example that is specified must validate against the schema for that property Error
items property is required for all schemas/definitions of type array Error

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