Querying Load Balancers by Tag

Function

This API is used to query load balancers using tags.

Constraints

None

URI

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

**Table 1** Parameter description
Parameter	Mandatory	Type	Description
project_id	Yes	String	Specifies the ID of the project where the tag is used.

Request Parameters

**Table 2** Request header parameters
Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	User token

**Table 3** Parameter description
Parameter	Mandatory	Type	Description
tags	No	Array	Specifies the included tags. A maximum of 10 keys are allowed for each query operation, and each key can have a maximum of 10 values. The tag key cannot be left blank or set to an empty string. Each tag key and each tag value of the same tag key must be unique. For details, see Table 4.
limit	No	Integer	Sets the page size. This parameter is available when action is set to filter. Both the default value and maximum value are 1000, and the minimum value is 1. The value cannot be a negative integer.
offset	No	Integer	Specifies the index position. The query starts from the next load balancer indexed by this parameter. This parameter is not required when you query load balancers on the first page. The value in the response returned for querying the load balancers on the previous page will be included in this parameter for querying the load balancers 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 positive integer, and the default value is 0.
action	Yes	String	Identifies the operation. The value can be filter or count. filter: indicates pagination query. count: indicates that all load balancers meeting the search criteria will be returned.
matches	No	Array	Specifies the search criteria. The tag key is the parameter to match, for example, resource_name. value indicates the value of the match content. The key is a fixed dictionary value. For details, see Table 5.

**Table 4** **tags** parameter description
Parameter	Mandatory	Type	Description
key	Yes	String	Specifies the tag key. It contains a maximum of 127 Unicode characters and cannot be left blank. (This parameter is not verified in the search process.)
values	Yes	Array	Lists the tag values. Each tag value can contain a maximum of 255 Unicode characters. The values are in the OR relationship. If no tag values in the list, the tag key is used for full search. If each value in the list starts with an asterisk (*), fuzzy match is performed based on the part after the asterisk.

**Table 5** **matches** parameter description
Parameter	Mandatory	Type	Description
key	Yes	String	Specifies the tag key for match. The value can be one of the following: resource_name: indicates the resource name. resource_id: indicates the resource ID.
value	Yes	String	Specifies the tag value for match. Each tag value can contain a maximum of 255 Unicode characters.

Response Parameters

**Table 6** Response parameters
Parameter	Type	Description
resources	Array	Lists the load balancers. For details, see Table 7.
total_count	Integer	Specifies the total number of queried records.

**Table 7** **resource** parameter description
Parameter	Type	Description
resource_id	String	Specifies the resource ID.
resource_detail	String	Specifies the resource details. The value is a resource object, used for extension. The value is left blank by default.
tags	Array	Lists the tags. If there is no tag, an empty array is used by default. For details, see Table 8.
resource_name	String	Specifies the resource name. This parameter is an empty string by default if there is no resource name.
super_resource_id	String	Specifies the parent resource ID.

**Table 8** **tags** parameter description
Parameter	Type	Description
key	String	Specifies the tag key. It contains a maximum of 127 Unicode characters and cannot be left blank. (This parameter is not verified in the search process.)
value	String	Specifies the tag value. Each tag value can contain a maximum of 255 Unicode characters.

Example Request

Example request 1 (when action is set to filter)

POST https://{Endpoint}/v2.0/6a0de1c3-7d74-4f4a-b75e-e57135bd2b97/loadbalancers/resource_instances/action

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

Example request 2 (when action is set to count)

POST https://{Endpoint}/v2.0/6a0de1c3-7d74-4f4a-b75e-e57135bd2b97/loadbalancers/resource_instances/action

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

Example Response

Example response 1

{
    "resources": [
        {
            "resource_detail": "", 
            "resource_id": "154d135b-3a89-4e89-8023-06efb9acdc05", 
            "resource_name": "resouece1", 
            "tags": [
                {
                    "key": "key1",
                    "value": "value1"
                }, 
                {
                    "key": "key2", 
                    "value": "value1"
                }
            ]
        }
    ], 
    "total_count": 1000
}