# Ex
import { Ex } from 'kequapp';
An unhandled exception from your application results in a 500 Internal Server Error. If you would like an error with a different status code, there is a helper tool for that.
createAction(() => {
throw Ex.NotFound();
});
The following examples are roughly equivalent:
createAction(() => {
throw Ex.NotFound('Custom message', { extra: 'info' });
});
createAction(() => {
throw Ex.StatusCode(404);
});
createAction(() => {
throw Ex.StatusCode(404, 'Custom message', { extra: 'info' });
});
This makes it easy to utilize any status code 400 and above. These methods create errors with correct stack traces that can be thrown directly without the use of new.
Any extra information added to the end of the parameter list will be available by accessing ex.info. With the default error handler this information is stripped off along with the stack trace in production mode.
| Name | Status Code | Message |
|---|---|---|
| BadRequest | 400 | 'Bad Request' |
| Unauthorized | 401 | 'Unauthorized' |
| PaymentRequired | 402 | 'Payment Required' |
| Forbidden | 403 | 'Forbidden' |
| NotFound | 404 | 'Not Found' |
| MethodNotAllowed | 405 | 'Method Not Allowed' |
| NotAcceptable | 406 | 'Not Acceptable' |
| ProxyAuthenticationRequired | 407 | 'Proxy Authentication Required' |
| RequestTimeout | 408 | 'Request Timeout' |
| Conflict | 409 | 'Conflict' |
| Gone | 410 | 'Gone' |
| LengthRequired | 411 | 'Length Required' |
| PreconditionFailed | 412 | 'Precondition Failed' |
| PayloadTooLarge | 413 | 'Payload Too Large' |
| URITooLong | 414 | 'URI Too Long' |
| UnsupportedMediaType | 415 | 'Unsupported Media Type' |
| RangeNotSatisfiable | 416 | 'Range Not Satisfiable' |
| ExpectationFailed | 417 | 'Expectation Failed' |
| ImATeapot | 418 | 'I'm a teapot' |
| MisdirectedRequest | 421 | 'Misdirected Request' |
| UnprocessableEntity | 422 | 'Unprocessable Entity' |
| Locked | 423 | 'Locked' |
| FailedDependency | 424 | 'Failed Dependency' |
| TooEarly | 425 | 'Too Early' |
| UpgradeRequired | 426 | 'Upgrade Required' |
| PreconditionRequired | 428 | 'Precondition Required' |
| TooManyRequests | 429 | 'Too Many Requests' |
| RequestHeaderFieldsTooLarge | 431 | 'Request Header Fields Too Large' |
| UnavailableForLegalReasons | 451 | 'Unavailable For Legal Reasons' |
| InternalServerError | 500 | 'Internal Server Error' |
| NotImplemented | 501 | 'Not Implemented' |
| BadGateway | 502 | 'Bad Gateway' |
| ServiceUnavailable | 503 | 'Service Unavailable' |
| GatewayTimeout | 504 | 'Gateway Timeout' |
| HTTPVersionNotSupported | 505 | 'HTTP Version Not Supported' |
| VariantAlsoNegotiates | 506 | 'Variant Also Negotiates' |
| InsufficientStorage | 507 | 'Insufficient Storage' |
| LoopDetected | 508 | 'Loop Detected' |
| BandwidthLimitExceeded | 509 | 'Bandwidth Limit Exceeded' |
| NotExtended | 510 | 'Not Extended' |
| NetworkAuthenticationRequired | 511 | 'Network Authentication Required' |