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Troubleshooting

Last updated: 2019-12-17 14:36:03

Overview

If an SDK API call to request the COS service fails, an error message will be returned in the callback.

Error Sample

cos.headBucket({
    Bucket: 'examplebucket-1250000000',
    Region: 'ap-beijing',
}, function(err, data) {
    if (err) {
        console.log(err.error);
    }
});

Client-side Exceptions

Parameter Name	Description	Type
err	Object returned when an error, a network error or service error, occurs. If the request is successful, this parameter will be empty. For more information, see Error Codes	Object
- error	Error message for the request	Object/String

Server-side Exceptions

Parameter Name	Description	Type
err	Object returned when an error, a network error or service error, occurs. If the request is successful, this parameter will be empty. For more information, see Error Codes	Object
- statusCode	HTTP status code returned by the request, such as `200`, `403`, and `404`	Number
- headers	Header information returned by the request	Object
- error	Error message for the request	Object/String
- - Code	Error code returned in the body when the request fails. For more information, see Error Codes	String
- - Message	Error message returned in the body when the request fails. For more information, see Error Codes	String
- - RequestId	A unique ID of the request in the server request log that can be submitted in a ticket for troubleshooting	String