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    Dynamic Content Delivery Network:GetDcdnKv

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    Dynamic Content Delivery Network:GetDcdnKv

    Last Updated:Apr 11, 2024

    Queries the value of a key in a key-value pair.

    Debugging

    OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer.

    Authorization information

    The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

    • Operation: the value that you can use in the Action element to specify the operation on a resource.
    • Access level: the access level of each operation. The levels are read, write, and list.
    • Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
      • The required resource types are displayed in bold characters.
      • If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
    • Condition Key: the condition key that is defined by the cloud service.
    • Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.
    OperationAccess levelResource typeCondition keyAssociated operation
    dcdn:GetDcdnKvRead
    • All Resources
      *
      none
    		none

    Request parameters

    ParameterTypeRequiredDescriptionExample
    NamespacestringYes

    The name of the namespace.

    		ns1
    KeystringYes

    The name of the key that you want to query.

    		key1

    Response parameters

    ParameterTypeDescriptionExample
    object
    Valuestring

    The value of the key.

    		value1
    RequestIdstring

    The ID of the request.

    		D61E4801-EAFF-4A63-AAE1-FBF6CE1CFD1C

    Examples

    Sample success responses

    JSONformat

    {
  "Value": "value1",
  "RequestId": "D61E4801-EAFF-4A63-AAE1-FBF6CE1CFD1C"
}

    Error codes

    HTTP status codeError codeError messageDescription
    400Invalid.ParameterThe specified parameter is invalid.The parameter is set to an invalid value.
    400InvalidAccount.MalformedThe specified account is invalid.The account is invalid. Check whether an account is specified.
    400InvalidNameSpace.MalformedThe specified namespace is invalid.The namespace is invalid. Check whether a namespace is specified.
    400InvalidKey.MalformedThe specified key is invalid.The key is invalid. Check whether a key is specified.
    400InvalidKey.ExceedsMaximumThe size of the key cannot exceed 512 bytes.The key cannot exceed 512 bytes in length.
    400InvalidValue.ExceedsMaximumThe size of the value cannot exceed 2,000,000 bytes.The value cannot exceed 2,000,000 bytes in length.
    403InvalidKey.ExceedsCapacityThe maximum capacity of a single namespace cannot exceed 1 GB.The capacity of the namespace has reached the upper limit. Each namespace can be at most 1 GB.
    403Unauthorized.InvalidParametersThe specified authentication parameters are invalid.An authentication parameter is set to an invalid value.
    403Unauthorized.InvalidTimeThe specified authentication time is invalid.The time parameter is set in an invalid format.
    403Unauthorized.InvalidTokenToken authentication failed.The specified token is invalid.
    403Unauthorized.InvalidResourceResource authentication failed.The specified resource is invalid.
    404InvalidAccount.NotFoundThe specified account does not exist.The specified account does not exist.
    404InvalidNameSpace.NotFoundThe specified namespace does not exist.The specified namespace does not exist.
    404InvalidKey.NotFoundThe specified key does not exist.The specified key does not exist.
    406InvalidNameSpace.DuplicateThe specified namespace already exists.The namespace already exists.
    406InvalidNameSpace.QuotaFullThe maximum number of namespaces is exceeded.The number of namespaces has reached the upper limit.
    406InvalidKey.QuotaFullThe maximum number of keys is exceeded.The number of keys has reached the upper limit.
    429TooManyRequestsToo many requests are submitted.Do not send requests at a high frequency.
    429TooQuickRequestsRequest for putting or deleting keys are frequently submitted.Do not perform the key put/delete operation at a high frequency.

    For a list of error codes, visit the Service error codes.

    Change history

    Change timeSummary of changesOperation
    No change history