Function

This API is used to create a stream.

When creating a stream, specify a stream type (common or advanced) and the number of partitions.
A maximum of 10 advanced stream partitions and 50 common stream partitions can be created for an account by default. You can submit a work order to increase the quota.

URI

POST /v2/{project_id}/streams

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Project ID.

Request Parameters

**Table 2** Request header parameters
Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	User token The token can be obtained by calling the IAM API used to obtain a user token. The value of X-Subject-Token in the response header is the user token.

**Table 3** Request body parameters
Parameter	Mandatory	Type	Description
stream_name	Yes	String	Stream name The stream name can contain 1 to 64 characters, including letters, digits, underscores (_), and hyphens (-). Maximum: 64
partition_count	Yes	Integer	Number of partitions Partitions are the base throughput unit of the DIS stream.
stream_type	No	String	Stream type COMMON: a common stream with a bandwidth of 1 MB/s ADVANCED: an advanced stream with a bandwidth of 5 MB/s Enumeration values: COMMON ADVANCED
data_type	No	String	Source data type BLOB: a collection of binary data stored as a single entity in a database management system Default value: BLOB Enumeration values: BLOB
data_duration	No	Integer	Data retention period Value range: 24–72 Unit: hour Default value: 24 If this parameter is left unspecified, the default value will be used. Maximum: 72 Default: 24
auto_scale_enabled	No	Boolean	Whether to enable auto scaling true: Auto scaling is enabled. false: Auto scaling is disabled. By default, this function is disabled. Default: false
auto_scale_min_partition_count	No	Long	Minimum number of partitions for automatic scale-down when auto scaling is enabled. Minimum: 1
auto_scale_max_partition_count	No	Integer	Maximum number of partitions for automatic scale-up when auto scaling is enabled.
compression_format	No	String	Data compression type. The following types are available: snappy gzip zip Data is not compressed by default. Enumeration values: snappy gzip zip
tags	No	Array of Tag objects	List of stream tags.
sys_tags	No	Array of SysTag objects	Stream enterprise projects.

**Table 4** Tag
Parameter	Mandatory	Type	Description
key	No	String	Key It cannot be left blank. It must be unique for each resource. It can contain uppercase and lowercase letters, digits, hyphens (-), underscores (_), and Unicode characters (\u4E00-\u9FFF). Minimum: 1 Maximum: 36
value	No	String	Value It can contain a maximum of 43 characters. It can contain uppercase and lowercase letters, digits, periods (.), hyphens (-), underscores (_), and Unicode characters (\u4E00-\u9FFF). It can only contain digits, letters, hyphens (-), and underscores (_). Minimum: 0 Maximum: 43

**Table 5** SysTag
Parameter	Mandatory	Type	Description
key	No	String	Key It cannot be left blank. Its value must be _sys_enterprise_project_id. Enumeration values: _sys_enterprise_project_id
value	No	String	Value. The value is the enterprise project ID, which needs to be obtained on the enterprise management page. It is a 36-digit UUID.

Response Parameters

None

Example Requests

Creating Streams

POST https://{Endpoint}/v2/{project_id}/streams

{
  "stream_name" : "newstream",
  "partition_count" : 3,
  "data_duration" : 24
}

Example Responses

None

Status Codes

Status Code	Description
201	Created

Error Codes

See Error Codes.