[Home](./index.md) > [ibm-cloud-sdk-core](./ibm-cloud-sdk-core.md) > [BasicAuthenticator](./ibm-cloud-sdk-core.basicauthenticator.md) > [(constructor)](./ibm-cloud-sdk-core.basicauthenticator._constructor_.md) ## BasicAuthenticator.(constructor) Create a new BasicAuthenticator instance. **Signature:** ```typescript constructor(options: Options); ``` ## Parameters

Parameter	Type	Description
options	Options	Configuration options for basic authentication. This should be an object containing these fields: - username: the username portion of basic authentication - password: the password portion of basic authentication

## Exceptions Error: the configuration options are not valid.