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Troubleshooting

Last updated: 2024-02-02 17:35:18

    Overview

    If an SDK API call to request the COS service fails, the system will return the error information in the callback.

    Sample error

    cos.headBucket({
    Bucket: 'examplebucket-1250000000',
    Region: 'COS_REGION', /* Bucket region. Required */
    }, function(err, data) {
    if (err) {
    console.log(err.error);
    }
    });

    Client Exceptions

    Parameter
    Description
    Type
    err
    Network or service error returned when the request fails. If the request is successful, this parameter is empty. For more information, see Error Codes.
    Object
    - error
    Error message for the request
    Object/String

    Server Exceptions

    Parameter
    Description
    Type
    err
    Network or service error returned when the request fails. If the request is successful, this parameter is empty. For more information, see Error Codes.
    Object
    - statusCode
    HTTP status code, such as 200, 403, and 404
    Number
    - headers
    Headers
    Object
    - error
    Error information
    Object/String
    - - Code
    Error code returned by the body when the request fails. For more information, see Error Codes
    String
    - - Message
    Error message returned by the body when the request fails. For more information, see Error Codes
    String
    - - RequestId
    Unique ID of the request in the server request log that can be submitted when you contact us for troubleshooting
    String

    Using the Diagnosis Tool

    COS provides a self-help diagnosis tool to help you quickly locate request problems and debug code.

    Directions

    1. Copy the request ID (RequestId) returned when the request error occurs.
    2. Click Diagnosis Tool.
    
    3. Enter RequestId and click Diagnose.
    4. Wait and view the diagnostic result.
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