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Edge Security Acceleration:PutDcdnKvWithHighCapacity

Last Updated:Sep 28, 2025

Sets a key-value pair for a namespace. This operation supports a request body of up to 25 MB.

Operation description

This operation provides the same functionality as PutDcdnKv but supports a larger request body. If the request body is small, use the PutDcdnKv operation to reduce the server-side processing time. Calling this operation requires an SDK. For example, if you use the Go SDK, call the PutDcdnKvWithHighCapacityAdvance function.

func TestPutDcdnKvWithHighCapacity() {
	// Initialize the configuration.
	cfg := new(openapi.Config)
	cfg.SetAccessKeyId("xxxxxxxxx")
	cfg.SetAccessKeySecret("xxxxxxxxxx")
	cli, err := NewClient(cfg)
	if err != nil {
		return err
	}
	runtime := &util.RuntimeOptions{}

	// Construct the key-value pair request to upload.
	namespace := "test-put-kv"
	key := "test_PutDcdnKvWithHighCapacity_0"
	value := strings.Repeat("t", 10*1024*1024)
	rawReq := &PutDcdnKvRequest{
		Namespace: &namespace,
		Key:       &key,
		Value:     &value,
	}
	payload, err := json.Marshal(rawReq)
	if err != nil {
		return err
	}

	// If the payload is larger than 2 MB, call the high-capacity operation to upload the data.
	reqHighCapacity := &PutDcdnKvWithHighCapacityAdvanceRequest{
		Namespace: &namespace,
		Key:       &key,
		UrlObject: bytes.NewReader([]byte(payload)),
	}

	resp, err := cli.PutDcdnKvWithHighCapacityAdvance(reqHighCapacity, runtime)
	if err != nil {
		return err
	}
	return nil
}

Try it now

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Test

RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

  • Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.

  • API: The API that you can call to perform the action.

  • Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.

  • Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.

    • For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.

    • For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.

  • Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.

  • Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

dcdn:PutDcdnKvWithHighCapacity

get

*All Resource

*

None None

Request parameters

Parameter

Type

Required

Description

Example

Namespace

string

Yes

The name of the namespace that you specified when you called the PutDcdnKvNamespace operation.

test_namesapce

Key

string

Yes

The name of the key to set. The key can be up to 512 characters in length and cannot contain spaces or backslashes (/).

test_key

Url

string

Yes

The download URL of the object that stores the key-value pair. This parameter is automatically generated by the SDK. You must use an SDK to call this operation.

https://xxxobject.oss-cn-reginon.aliyuncs.com/9d91_xxxxxxxxxxx_158bb6e0f97c477791209bb46bd599f7

Response elements

Element

Type

Description

Example

object

Length

integer

The length of the value in the key-value pair.

4

Value

string

The content of the key. If the value is longer than 256 characters, the system returns the first 100 characters and the last 100 characters, and omits the middle part.

test

RequestId

string

The request ID.

EEEBE525-F576-1196-8DAF-2D70CA3F4D2F

Examples

Success response

JSON format

{
  "Length": 4,
  "Value": "test",
  "RequestId": "EEEBE525-F576-1196-8DAF-2D70CA3F4D2F"
}

Error codes

HTTP status code

Error code

Error message

Description

400 Invalid.Parameter The specified parameter is invalid. The parameter is set to an invalid value.
400 InvalidAccount.Malformed The specified account is invalid. The account is invalid. Check whether an account is specified.
400 InvalidNameSpace.Malformed The specified namespace is invalid. The namespace is invalid. Check whether a namespace is specified.
400 InvalidKey.Malformed The specified key is invalid. The key is invalid. Check whether a key is specified.
400 InvalidKey.ExceedsMaximum The size of the key cannot exceed 512 bytes. The key cannot exceed 512 bytes in length.
400 InvalidValue.ExceedsMaximum The size of the value cannot exceed 2,000,000 bytes. The value cannot exceed 2,000,000 bytes in length.
403 InvalidKey.ExceedsCapacity The 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.
403 Unauthorized.InvalidParameters The specified authentication parameters are invalid. An authentication parameter is set to an invalid value.
403 Unauthorized.InvalidTime The specified authentication time is invalid. The authentication time parameter you entered is invalid. Check the parameter value and try again.
403 Unauthorized.InvalidToken Token authentication failed. The token you entered is invalid. Please check and enter the correct token and try again.
403 Unauthorized.InvalidResource Resource authentication failed. The specified resource is invalid.
404 InvalidAccount.NotFound The specified account does not exist. The specified account does not exist.
404 InvalidNameSpace.NotFound The specified namespace does not exist. The specified namespace does not exist.
404 InvalidKey.NotFound The specified key does not exist. The specified key does not exist.
406 InvalidNameSpace.Duplicate The specified namespace already exists. The namespace already exists.
406 InvalidNameSpace.QuotaFull The maximum number of namespaces is exceeded. The number of namespaces has reached the upper limit.
406 InvalidKey.QuotaFull The maximum number of keys is exceeded. The number of keys has reached the upper limit.
429 TooManyRequests Too many requests are submitted. Do not send requests at a high frequency.
429 TooQuickRequests Request for putting or deleting keys are frequently submitted. Do not perform the key put/delete operation at a high frequency.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.