Creating Streams

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.

last updated: 2024-12-10 14:57 UTC - commit: a4bac582277d17e53f4aebc84d2abd02bc96165c