# CassAuthenticatorCallbacks

### struct CassAuthenticatorCallbacks

Authenticator callbacks 

### Public Types

### typedef void (\*CassAuthenticatorInitialCallback)([CassAuthenticator](https://cpp-rs-driver.docs.scylladb.com/v1.0.1/api/struct.CassAuthenticator.md#_CPPv417CassAuthenticator) \*auth, void \*data)

A callback used to initiate an authentication exchange.

Use cass_authenticator_set_response() to set the response token.

Use cass_authenticator_set_error() if an error occurred during initialization.

* **Param auth:**
  **[in]** 
* **Param data:**
  **[in]** 

### typedef void (\*CassAuthenticatorChallengeCallback)([CassAuthenticator](https://cpp-rs-driver.docs.scylladb.com/v1.0.1/api/struct.CassAuthenticator.md#_CPPv417CassAuthenticator) \*auth, void \*data, const char \*token, size_t token_size)

A callback used when an authentication challenge initiated by the server.

Use cass_authenticator_set_response() to set the response token.

Use cass_authenticator_set_error() if an error occurred during the challenge.

* **Param auth:**
  **[in]** 
* **Param data:**
  **[in]** 
* **Param token:**
  **[in]** 
* **Param token_size:**
  **[in]** 

### typedef void (\*CassAuthenticatorSuccessCallback)([CassAuthenticator](https://cpp-rs-driver.docs.scylladb.com/v1.0.1/api/struct.CassAuthenticator.md#_CPPv417CassAuthenticator) \*auth, void \*data, const char \*token, size_t token_size)

A callback used to indicate the success of the authentication exchange.

Use cass_authenticator_set_error() if an error occurred while evaluating the success token.

* **Param auth:**
  **[in]** 
* **Param data:**
  **[in]** 
* **Param token:**
  **[in]** 
* **Param token_size:**
  **[in]** 

### typedef void (\*CassAuthenticatorCleanupCallback)([CassAuthenticator](https://cpp-rs-driver.docs.scylladb.com/v1.0.1/api/struct.CassAuthenticator.md#_CPPv417CassAuthenticator) \*auth, void \*data)

A callback used to cleanup resources that were acquired during the process of the authentication exchange. This is called after the termination of the exchange regardless of the outcome.

* **Param auth:**
  **[in]** 
* **Param data:**
  **[in]** 

### typedef void (\*CassAuthenticatorDataCleanupCallback)(void \*data)

A callback used to cleanup resources.

* **Param data:**
  **[in]** 

### Public Members

### [CassAuthenticatorInitialCallback](#_CPPv4N26CassAuthenticatorCallbacks32CassAuthenticatorInitialCallbackE) initial_callback

### [CassAuthenticatorChallengeCallback](#_CPPv4N26CassAuthenticatorCallbacks34CassAuthenticatorChallengeCallbackE) challenge_callback

### [CassAuthenticatorSuccessCallback](#_CPPv4N26CassAuthenticatorCallbacks32CassAuthenticatorSuccessCallbackE) success_callback

### [CassAuthenticatorCleanupCallback](#_CPPv4N26CassAuthenticatorCallbacks32CassAuthenticatorCleanupCallbackE) cleanup_callback