make auth provider configurable

Author: fjakobs

lib/DBSQLClient.ts

@@ -84,12 +84,13 @@ export default class DBSQLClient extends EventEmitter implements IDBSQLClient {
  * Connects DBSQLClient to endpoint
  * @public
  * @param options - host, path, and token are required
+ * @param authProvider - Optional custom authentication provider
  * @returns Session object that can be used to execute statements
  * @example
  * const session = client.connect({host, path, token});
  */
- async connect(options: ConnectionOptions): Promise<IDBSQLClient> {
- this.authProvider = new PlainHttpAuthentication({
+ async connect(options: ConnectionOptions, authProvider?: IAuthentication): Promise<IDBSQLClient> {
+ this.authProvider = authProvider || new PlainHttpAuthentication({
  username: 'token',
  password: options.token,
  headers: {