Function validate

sign.js:42–59

(schema, allowUnknown, object, parameterName)

};

function validate(schema, allowUnknown, object, parameterName) {
  if (!isPlainObject(object)) {
    throw new Error('Expected "' + parameterName + '" to be a plain object.');
  }
  Object.keys(object)
    .forEach(function(key) {
      const validator = schema[key];
      if (!validator) {
        if (!allowUnknown) {
          throw new Error('"' + key + '" is not allowed in "' + parameterName + '"');
        }
        return;
      }
      if (!validator.isValid(object[key])) {
        throw new Error(validator.message);
      }
    });
}

function validateOptions(options) {
  return validate(sign_options_schema, false, options, 'options');