Export error types and AbstractGrantType

Author: maxtruxa

index.js

@@ -4,6 +4,32 @@
  * Expose server and request/response classes.
  */
 
-module.exports = require('./lib/server');
-module.exports.Request = require('./lib/request');
-module.exports.Response = require('./lib/response');
+exports = module.exports = require('./lib/server');
+exports.Request = require('./lib/request');
+exports.Response = require('./lib/response');
+
+/**
+ * Export helpers for extension grants.
+ */
+
+exports.AbstractGrantType = require('./lib/grant-types/abstract-grant-type');
+
+/**
+ * Export error classes.
+ */
+
+exports.AccessDeniedError = require('./lib/errors/access-denied-error');
+exports.InsufficientScopeError = require('./lib/errors/insufficient-scope-error');
+exports.InvalidArgumentError = require('./lib/errors/invalid-argument-error');
+exports.InvalidClientError = require('./lib/errors/invalid-client-error');
+exports.InvalidGrantError = require('./lib/errors/invalid-grant-error');
+exports.InvalidRequestError = require('./lib/errors/invalid-request-error');
+exports.InvalidScopeError = require('./lib/errors/invalid-scope-error');
+exports.InvalidTokenError = require('./lib/errors/invalid-token-error');
+exports.OAuthError = require('./lib/errors/oauth-error');
+exports.ServerError = require('./lib/errors/server-error');
+exports.UnauthorizedClientError = require('./lib/errors/unauthorized-client-error');
+exports.UnauthorizedRequestError = require('./lib/errors/unauthorized-request-error');
+exports.UnsupportedGrantTypeError = require('./lib/errors/unsupported-grant-type-error');
+exports.UnsupportedResponseTypeError = require('./lib/errors/unsupported-response-type-error');
+