# Exceptions

When you make a request via the SDK, there is a chance of request failing due to various reasons. When such a failure happens, an exception corresponding to the error occurred is raised.

***

**Possible Exceptions**

* `BadRequestException` If the request returns with status code `400`
* `UnauthorizedException` If the request returns with status code `401`
* `ForbiddenException` If the request returns with status code `403`
* `NotFoundException` If the request returns with status code `404`
* `MethodNotAllowedException` If the request returns with status code `405`
* `TooManyRequestsException` If the request returns with status code `429`
* `PleaseContactBunqException` If the request returns with status code `500`. If you get this exception, please contact us preferably via the support chat in the bunq app.
* `UnknownApiErrorException` If none of the above mentioned exceptions are raised, this exception will be raised instead.

For more information regarding these errors, please take a look on the documentation page here: 

{% content-ref url="../../../../basics/errors" %}
[errors](https://doc.bunq.com/basics/errors)
{% endcontent-ref %}

***

### **Base exception**

All the exceptions have the same base exception which looks like this:

```python
class ApiException(Exception):
    def __init__(self,
                 message: str,
                 response_code: int) -> None:
        pass

    @property
    def message(self) -> str:
        return self._message

    @property
    def response_code(self) -> int:
        return self._response_code
```

This means that each exception will have the response code and the error message related to the specific exception that has been raised.

***

### **Exception handling**

Because we raise different exceptions for each error, you can catch an error if you expect it to be raised.

```python
from bunq.sdk.exception.bad_request_exception import BadRequestException
from bunq.sdk.context.api_context import ApiEnvironmentType, ApiContext

API_KEY = "Some invalid API key"
DESCRIPTION = "This will raise a BadRequestException"

try:
    # Make a call that might raise an exception
    ApiContext.create(ApiEnvironmentType.SANDBOX, API_KEY, DESCRIPTION)
except BadRequestException as error:
    # Do something if exception is raised
    print(error.response_code)
    print(error.message) # or just print(error)
```