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    POST Object Common Exceptions

    Last updated: 2024-03-25 18:01:58
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      Symptoms

      When POST requests are initiated via COS APIs, the following error messages are returned:
      Condition key q-ak doesn't match the value XXXXXX
      You post object request has been expired, expiration time: 1621188104 but the time now : 1621245817
      The Signature you specified is invalid.
      You must provide condition if you specify a policy in post object request.
      Condition key bucket doesn't match the value [bucket-appid]
      Condition key key doesn't match the value XXXXX
      The body of your POST request is not well-formed multipart/form-data.

      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&apos;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.
      No: contact us.

      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 :

      Error message "You must provide condition if you specify a policy in post object request."

      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&apos;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&apos;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&apos;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&apos;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

      Correct the body format by referring to POST Object.
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