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Troubleshooting

Last updated: 2020-06-28 10:27:59

Introduction

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

Sample error

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

Client Exceptions

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

Server exceptions

Parameter Name	Description	Type
err	Object returned when an error, a network error or service error, occurs. If the request is successful, this 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	Headers 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	The unique ID of the request in the server request log that can be submitted in a ticket for troubleshooting	String