Querying DeHs by Tag

Function

This API is used to filter DeHs by tag and return the list of all tags of a DeH.

Tag Management Service (TMS) uses this API to filter the DeHs.

URI

POST /v1.0/{project_id}/dedicated-host-tags/resource_instances/action

Table 1 describes the parameters.

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

Request

**Table 2** Request parameters
Parameter	Type	Mandatory	Description
tags	Array of objects	No	Displays all DeHs with specified tags. For more information, see Table 3. A maximum of 10 keys can be included. Each key can have a maximum of 10 values. The structure body must be included. The tag key cannot be left blank or set to an empty string. A key must be unique. Values of the same key must be unique.
not_tags	Array of objects	No	Displays the DeHs with none of specified tags. For more information, see Table 3. A maximum of 10 keys can be included. Each key can have a maximum of 10 values. The structure body must be included. The tag key cannot be left blank or set to an empty string. Keys must be unique. Values of the same key must be unique.
limit	Integer	No	Limits the maximum number of queried DeHs. The value cannot be a negative number. The maximum value is 1000. If the action value is count, this parameter is invalid. If the action value is filter, the default value is 1000.
offset	Integer	No	Specifies the index position. The query starts from the next piece of data indexed by this parameter. The value must be a non-negative number. You do not need to specify this parameter when querying resources on the first page. When you query resources on subsequent pages, set the value of offset to the location returned in the response body for the previous query. If the action value is count, this parameter is invalid. If the action value is filter, the default value is 0.
action	String	Yes	Specifies the operation, which can be filter or count. filter: Filters DeHs by tag and lists DeHs that meet the search criteria. Listed DeHs are queried by page. count: Searches for DeHs by tag and returns the number of DeHs that meet the search criteria.
tags_any	Array of objects	No	Includes any of the specified tags. For more information, see Table 3. This field contains a maximum of 10 tag keys and each tag key has a maximum of 10 tag values. The tag value corresponding to each tag key can be an empty array but the structure cannot be missing. Each key must be unique, and cannot contain duplicate values. The response returns resources containing the tags in this list. Keys in this list are in an OR relationship and values in each key-value structure are also in an OR relationship. If no tag filtering condition is specified, full data is returned.
not_tags_any	Array of objects	No	Excludes any of the specified tags. For more information, see Table 3. This field contains a maximum of 10 tag keys and each tag key has a maximum of 10 tag values. The tag value corresponding to each tag key can be an empty array but the structure cannot be missing. Each key must be unique, and cannot contain duplicate values. The response returns resources containing no tags in this list. Keys in this list are in an OR relationship and values in each key-value structure are also in an OR relationship. If no tag filtering condition is specified, full data is returned.
matches	Array of objects	No	Specifies the search field, which is used to search for DeHs by condition. Currently, only resource_name can be used for search. For more information, see Table 4.

**Table 3** **tag** field description
Parameter	Type	Mandatory	Description
key	String	Yes	Specifies the tag key. It contains a maximum of 127 Unicode characters. This field cannot be left blank.
values	Array of strings	No	Specifies the tag values. Each tag contains a maximum of 10 values. Values of the same tag must be unique. Each value can contain a maximum of 255 Unicode characters. If this parameter is not specified, any value can be used. The resources containing one or more values listed in values will be found and displayed.

**Table 4** **match** field description
Parameter	Type	Mandatory	Description
key	String	Yes	Specifies the key parameter to be matched. The key must be unique, and the value is used for matching. The key field is a fixed dictionary value. This field cannot be left blank. NOTE: The parameter value can only be resource_name, which is the DeH name.
value	String	Yes	Specifies the tag value. Each value can contain a maximum of 255 Unicode characters. This field cannot be left blank.

Response

**Table 5** Response parameters
Parameter	Type	Description
resources	Array of objects	Specifies the returned DeH list. For details, see Table 6.
total_count	Integer	Specifies the total number of resources.

**Table 6** Description of the **resource** field
Parameter	Type	Description
resource_id	String	Specifies the DeH ID.
resouce_detail	String	Specifies the DeH details. This field is used for future extension and is left empty by default.
tags	Array of objects	Specifies the tag list. For details, see Table 7.
resource_name	String	Specifies the resource name.

**Table 7** **tag** field description
Parameter	Type	Description
key	String	Specifies the tag key. It contains a maximum of 36 Unicode characters. This field cannot be left blank. It cannot contain the following ASCII characters: =*<>\\|/,
value	String	Specifies the tag value. Each value contains a maximum of 43 Unicode characters. This field can be left blank. It cannot contain the following ASCII characters: =*<>\\|/,

Example Request

Filter DeHs by tag. From the first data record, query the DeH using the search field (field: resource_name; value: resource1) and the tag (key: key1; value: value1).

POST https://{Endpoint}/v1.0/9c53a566cb3443ab910cf0daebca90c4/dedicated-host-tags/resource_instances/action 
{ 
    "offset": "0",
    "limit": "100",
    "action": "filter",
    "matches": [
        {
            "key": "resource_name",
            "value": "resource1"
        }
    ],
    "tags": [
        {
            "key": "key1",
            "values": ["value1"]
        }
    ]
}

Example Response

Response body when action is set to filter

{
    "resources": [
        {
            "resource_detail": null,
            "resource_id": "cdfs_cefs_wesas_12_dsad",
            "resource_name": "resource1",
            "tags": [
                {
                    "key": "key1",
                    "value": "value1"
                }
            ]
        }
    ],
    "total_count": 1
}

Response body when action is set to count