# Exceptions - `HTTPException` and `WebSocketException`

These are the exceptions that you can raise to show errors to the client.

When you raise an exception, as would happen with normal Python, the rest of the execution is aborted. This way you can raise these exceptions from anywhere in the code to abort a request and show the error to the client.

You can use:

* `HTTPException`
* `WebSocketException`

* **`400 - 499`** are for "Client error" responses. These are the second type you would probably use the most.
    * An example is `404`, for a "Not Found" response.
    * For generic errors from the client, you can just use `400`.

pkg bufio, method (ReadWriter) ReadString(uint8) (string, error)
pkg bufio, method (ReadWriter) UnreadByte() error
pkg bufio, method (ReadWriter) UnreadRune() error
pkg bufio, method (ReadWriter) Write([]uint8) (int, error)
pkg bufio, method (ReadWriter) WriteByte(uint8) error
pkg bufio, method (ReadWriter) WriteRune(int32) (int, error)
pkg bufio, method (ReadWriter) WriteString(string) (int, error)
pkg bufio, type ReadWriter struct

	driveTimeoutErrorsMD = NewCounterMD(driveTimeoutErrorsTotal,
		"Total timeout errors on a drive", allDriveLabels...)
	driveIOErrorsMD = NewCounterMD(driveIOErrorsTotal,
		"Total I/O errors on a drive", allDriveLabels...)
	driveAvailabilityErrorsMD = NewCounterMD(driveAvailabilityErrorsTotal,
		"Total availability errors (I/O errors, timeouts) on a drive",
		allDriveLabels...)
	driveWaitingIOMD = NewGaugeMD(driveWaitingIO,

errors.could_not_delete_logged_in_user=로그인한 사용자는 삭제할 수 없습니다.
errors.unauthorized_request=권한이 없는 요청입니다.
errors.failed_to_print_thread_dump=스레드 덤프를 인쇄하지 못했습니다.
errors.file_is_not_supported={0}은(는) 지원되지 않습니다.
errors.plugin_file_is_not_found={0}을(를) 찾을 수 없습니다.
errors.failed_to_install_plugin={0}을(를) 설치하지 못했습니다.
errors.failed_to_find_plugins=사용 가능한 플러그인을 찾을 수 없습니다.
errors.failed_to_process_sso_request=요청을 처리하지 못했습니다: {0}

        /**
         * Called when a witness registration fails.
         *
         * @param registration the failed registration
         * @param error the error that occurred
         */
        void onRegistrationFailed(WitnessRegistration registration, Exception error);

        /**
         * Called when a witness registration expires.
         *
         * @param registration the expired registration
         */

labels.csvFileEncoding=Codifica CSV
labels.defaultLabelValue=Etichetta predefinita
labels.designFileName=Nome file
labels.incrementalCrawling=Verifica ultima modifica
labels.errorCount=Numero di errori
labels.errorLog=Log errori
labels.errorName=Nome errore
labels.expiredTime=Data di scadenza
labels.expires=Scade
labels.failureCountThreshold=Soglia di fallimento
labels.fileConfigName=Nome configurazione scansione file
labels.fileName=Nome file

        final List<Throwable> errors = new ArrayList<>(elevateWords.length);
        for (final ElevateWord elevateWord : elevateWords) {
            final SuggestIndexResponse res = addElevateWord(elevateWord, true);
            numberOfSuggestDocs += res.getNumberOfSuggestDocs();
            numberOfInputDocs += res.getNumberOfInputDocs();
            errors.addAll(res.getErrors());
        }

### Small Errors Automatically Handled { #small-errors-automatically-handled }

When building web APIs with FastAPI, if there's an error in our code, FastAPI will normally contain it to the single request that triggered the error. 🛡

package org.codelibs.curl;

/**
 * Custom exception class for handling errors related to Curl operations.
 * This class extends {@link RuntimeException} and provides constructors
 * to create an exception instance with a message and an optional cause.
 *
 * <p>Usage examples:</p>
 * <pre>
 *     throw new CurlException("Error message");
 *     throw new CurlException("Error message", cause);
 * </pre>
 *
 * @see RuntimeException
 */