codeql/javascript/ql/test/tutorials/Validating RAML-based APIs/query3.ql

import javascript
string httpVerb() {
  result = "get" or result = "put" or
  result = "post" or result = "delete"
}
/** A RAML specification. */
class RAMLSpec extends YAMLDocument, YAMLMapping {
  RAMLSpec() {
    getLocation().getFile().getExtension() = "raml"
  }
}
/** A RAML resource specification. */
class RAMLResource extends YAMLMapping {
  RAMLResource() {
    getDocument() instanceof RAMLSpec and
    exists (YAMLMapping m, string name |
      this = m.lookup(name) and
      name.matches("/%")
    )
  }
  /** Get the path of this resource relative to the API root. */
  string getPath() {
    exists (RAMLSpec spec |
      this = spec.lookup(result)
    ) or
    exists (RAMLResource that, string p |
      this = that.lookup(p) and
      result = that.getPath() + p
    )
  }
  /** Get the method for this resource with the given verb. */ 
  RAMLMethod getMethod(string verb) {
    verb = httpVerb() and
    result = lookup(verb)
  }
}
class RAMLMethod extends YAMLValue {
  RAMLMethod() {
    getDocument() instanceof RAMLSpec and
    exists (YAMLMapping obj |
      this = obj.lookup(httpVerb())
    )
  }
}
select 1