Symptoms
When POST requests are initiated via COS APIs, the following error messages are returned:
Troubleshooting
Error message "Condition key q-ak doesn't match the value XXXXXX"
When POST requests are initiated via COS APIs, the following information is displayed:
<Code>AccessDenied</Code>
<Message>Condition key q-ak doesn't match the value XXXXXX</Message>
Possible cause
q-ak parameter input error.
Solution
1. Log in to the CAM console and go to the Manage API Key page to view the key information. 2. Check whether the q-ak parameter is incorrectly set based on the key information:
Yes: change the value of the q-ak parameter to the correct SecretId.
Error message "You post object request has been expired, expiration time: 1621188104 but the time now : 1621245817"
When POST requests are initiated via COS APIs, the following information is displayed:
<Code>AccessDenied</Code>
<Message>You post object request has been expired, expiration time: 1621188104 but the time now : 1621245817</Message>
Possible cause
The value of expiration in the policy has expired.
Solution
Change the value of expiration in the policy.
Note:
The value of expiration must be later than the current time. The recommended value is a time 30 minutes later than the current time (UTC time).
Error message "The Signature you specified is invalid."
When POST requests are initiated via COS APIs, the following information is displayed:
<Code>SignatureDoesNotMatch</Code>
<Message>The Signature you specified is invalid.</Message>
Possible cause
Signature calculation error.
Solution
Check whether the POST signature string generation rule is correct by referring to Request Signature : When POST requests are initiated via COS APIs, the following information is displayed:
<Code>InvalidPolicyDocument</Code>
<Message>You must provide condition if you specify a policy in post object request.</Message>
Possible cause
Policy format error.
Solution
Change the policy format to the standard JSON format by referring to POST Object. Error message "Condition key bucket doesn't match the value [bucket-appid]"
When POST requests are initiated via COS APIs, the following information is displayed:
<Code>AccessDenied</Code>
<Message>Condition key bucket doesn't match the value [bucket-appid]</Message>
Possible cause
The bucket in the policy is inconsistent with that in the request.
Solution
Use the bucket specified in the policy to initiate the request.
Error message "Condition key key doesn't match the value XXXXX"
When POST requests are initiated via COS APIs, the following information is displayed:
<Code>AccessDenied</Code>
<Message>Condition key key doesn't match the value XXXXX</Message>
Possible cause
The uploaded content does not comply with the policy.
Solution
Upload content that meets the conditions specified in the policy.
Error message "The body of your POST request is not well-formed multipart/form-data."
When POST requests are initiated via COS APIs, the following information is displayed:
<Code>MalformedPOSTRequest</Code>
<Message>The body of your POST request is not well-formed multipart/form-data.</Message>
Possible cause
The POST body format is invalid.
Solution