Querying Subnets by Tag

Function

This API is used to query subnets by tag.

URI

POST /v2.0/{project_id}/subnets/resource_instances/action

Table 1 describes the parameters.

**Table 1** Parameter description
Name	Mandatory	Description
project_id	Yes	Specifies the project ID. For details about how to obtain a project ID, see Obtaining a Project ID.

Request Parameters

**Table 2** Request parameter
Parameter	Type	Mandatory	Description
tags	Array of tag objects	No	Specifies the included tags. A maximum of 10 tag keys are allowed for each query operation. Each tag key can have up to 10 tag values. The structure body must be included. The tag key cannot be left blank or set to an empty string. Each tag key must be unique, and each tag value in a tag must be unique.
limit	Integer	No	Sets the page size. This parameter is not available when action is set to count. The default value is 1000 when action is set to filter. The maximum value is 1000, and the minimum value is 1. The value cannot be a negative number.
offset	Integer	No	Specifies the index position. The query starts from the next piece of data indexed by this parameter. This parameter is not required when you query data on the first page. The value in the response returned for querying data on the previous page will be included in this parameter for querying data on subsequent pages. This parameter is not available when action is set to count. If action is set to filter, the value must be a number, and the default value is 0. The value cannot be a negative number.
action	String	Yes	Specifies the operation to perform. The value can only be filter (filtering) or count (querying the total number). The value filter indicates pagination query. The value count indicates that the total number of query results meeting the search criteria will be returned.
matches	Array of match objects	No	Specifies the search criteria. The tag key is the field to match. Currently, only resource_name is supported. The tag value indicates the matched value. This field is a fixed dictionary value.

**Table 3** Description of the **tag** field
Name	Mandatory	Type	Description
key	Yes	String	Specifies the tag key. The value can contain a maximum of 128 Unicode characters. The tag key cannot be left blank. (This parameter is not verified during the search process.)
values	Yes	Array of strings	Specifies the tag value list. Each value can contain a maximum of 255 Unicode characters. An empty list for values indicates any value. The values are in the OR relationship.

**Table 4** Description of the **match** field
Name	Mandatory	Type	Description
key	Yes	String	Specifies the tag key. Currently, the tag key can only be the resource name.
value	Yes	String	Specifies the tag value. Each value can contain a maximum of 255 Unicode characters.

Example Request

Filter subnets by setting action to filter. The query starts from the first record. A maximum of 100 records can be returned for each query. You can use matches and tags to filter subnets.

POST https://{Endpoint}/v2.0/{project_id}/subnets/resource_instances/action

{
    "offset": "0",
    "limit": "100",
    "action": "filter",
    "matches": [
        {
            "key": "resource_name",
            "value": "resource1"
        }
    ],
    "tags": [
        {
            "key": "key1",
            "values": [
                "*value1",
                "value2"
            ]
        }
    ]
}

Count subnets by setting action to count. Use matches and tags to filter and count VPCs.

POST https://{Endpoint}/v2.0/{project_id}/subnets/resource_instances/action

{
    "action": "count",
    "tags": [
        {
            "key": "key1",
            "values": [
                "value1",
                "value2"
            ]
        },
        {
            "key": "key2",
            "values": [
                "value1",
                "value2"
            ]
        }
    ],
    "matches": [
        {
            "key": "resource_name",
            "value": "resource1"
        }
    ]
}

Response Parameters

**Table 5** Response parameter
Name	Type	Description
resources	Array of resource objects	Specifies the resource object list. For details, see Table 6.
total_count	Integer	Specifies the total number of query records.

**Table 6** **resource** objects
Name	Type	Description
resource_id	String	Specifies the resource ID.
resource_detail	Object	Specifies the resource details. Resource details are used for extension. This parameter is left blank by default.
tags	Array of tag objects	Specifies the tag list. This parameter is an empty array by default if there is no tag. For details, see Table 7.
resource_name	String	Specifies the resource name. This parameter is an empty string by default if there is no resource name.

**Table 7** Description of the **tag** field
Name	Mandatory	Type	Description
key	Yes	String	Specifies the tag key. The value can contain a maximum of 128 Unicode characters. The tag key cannot be left blank. (This parameter is not verified during the search process.)
value	Yes	String	Specifies the tag value list. Each value can contain a maximum of 255 Unicode characters. An empty list for values indicates any value. The values are in the OR relationship.

Example Response

When action is set to filter:

{ 
      "resources": [
         {
            "resource_detail": null, 
            "resource_id": "cdfs_cefs_wesas_12_dsad", 
            "resource_name": "resouece1", 
            "tags": [
                {
                   "key": "key1",
                   "value": "value1"
                },
                {
                   "key": "key2",
                   "value": "value1"
                }
             ]
         }
       ], 
      "total_count": 1000
}