Example 3: Querying Information About Keys

Scenario

Use KMS APIs to obtain the list of keys, key information, key instances, and key tags.

Involved APIs

Query key list
Query key information
Query key instance
Query key tags Tag Management Service (TMS) needs to query all the tags of a specified CMK.

Procedure

Query the list of keys.

API information
URI format: POST /v1.0/{project_id}/kms/list-keys

For details, see "Querying Key List".
Example request
POST: https://{endpoint}/v1.0/53d1aefc533f4ce9a59c26b01667cbcf/kms/list-keys

Body:
```
{  
   "limit": "2", 
    "marker": "1"
 }
```

Example response

{ 
    "keys": [
         "0d0466b0-e727-4d9c-b35d-f84bb474a37f", 
        "2e258389-bb1e-4568-a1d5-e1f50adf70ea"
     ],
     "key_details": [ 
     {   
      "key_id":"0d0466b0-e727-4d9c-b35d-f84bb474a37f",  
       "domain_id":"00074811d5c27c4f8d48bb91e4a1dcfd",
         "key_alias":"caseuirpr",
         "realm":"aaaa",
         "key_description":"123", 
        "creation_date":"1502799822000",
         "scheduled_deletion_date":"",
         "key_state":"2",
         "default_key_flag":"0",
         "key_type":"1",
         "expiration_time":"1501578672000",
         "origin":"kms"
 }, 
        {   
      "key_id":"2e258389-bb1e-4568-a1d5-e1f50adf70ea",  
       "domain_id":"00074811d5c27c4f8d48bb91e4a1dcfd",  
       "key_alias":"casehvniz",
        "realm":"aaaa",   
      "key_description":"234", 
        "creation_date":"1502799820000", 
         "scheduled_deletion_date":"",
         "key_state":"2",
         "default_key_flag":"0",
         "key_type":"1", 
        "expiration_time":"1501578673000",
         "origin":"kms"
 }
      ],
     "next_marker": "", 
    "truncated": "false",
     "total":2 
}

Query the information about keys.

API information
URI format: POST /v1.0/{project_id}/kms/describe-key

For details, see "Querying Key Details".
Example request
POST: https://{endpoint}/v1.0/53d1aefc533f4ce9a59c26b01667cbcf/kms/describe-key

You can use the API for Querying the List of CMKs to check key information, including key_id.

Body:
```
{  
   "key_id": "0d0466b0-e727-4d9c-b35d-f84bb474a37f" 
}
```

Example response

{ 
    "key_info": { 
        "key_id": "0d0466b0-e727-4d9c-b35d-f84bb474a37f", 
        "domain_id": "b168fe00ff56492495a7d22974df2d0b", 
        "key_alias": "kms_test", 
        "realm": "aaa",
         "key_description": "",  
       "creation_date": "1472442386000", 
        "scheduled_deletion_date": "", 
        "key_state": "2", 
        "default_key_flag": "0", 
        "key_type": "1", 
        "expiration_time":"1501578672000", 
        "origin":"kms", 
        "key_rotation_enabled":"false", 
        "sys_enterprise_project_id ": "0",
     }
 }

Query CMK instances.

API information
URI format: POST /v1.0/{project_id}/kms/resource_instances/action

For details, see "Querying Key Instances".

Example request

POST: https://{endpoint}/v1.0/53d1aefc533f4ce9a59c26b01667cbcf/kms//resource_instances/action

Body:

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

Example response

{
  "resources" : [ {
    "resource_id" : "90c03e67-5534-4ed0-acfa-89780e47a535",
    "resource_detail" : [ {
      "key_id" : "90c03e67-5534-4ed0-acfa-89780e47a535",
      "domain_id" : "4B688Fb77412Aee5570E7ecdbeB5afdc",
      "key_alias" : "tagTest_xmdmi",
      "key_description" : "123",
      "creation_date" : 1521449277000,
      "scheduled_deletion_date" : "",
      "key_state" : 2,
      "default_key_flag" : 0,
      "key_type" : 1,
      "key_rotation_enabled" : false,
      "expiration_time" : "",
      "origin" : "kms",
      "sys_enterprise_project_id" : "0",
      "realm" :  "cn-hongkong-7"
    } ],
    "resource_name" : "tagTest_xmdmi",
    "tags" : [ {
      "key" : "key",
      "value" : "testValue!"
    }, {
      "key" : "haha",
      "value" : "testValue"
    } ]
  } ],
  "total_count" : 1
}

Query the tags of a key.
- API information
  URI format: GET /v1.0/{project_id}/kms/{key_id}/tags
  
  For details, see "Querying Key Tags".
- Example request
  GET: https://{endpoint}/v1.0/53d1aefc533f4ce9a59c26b01667cbcf/kms/94752282-805e-4032-ada8-34966f70e02f/tags
  
  Body:
  
  None
- Example response
```
{ 
        "tags": [   
         {   
          "key": "key1",   
          "value": "value1" 
           }, 
           {  
           "key": "key2",  
           "value": "value3" 
           } 
           ], 
           "existTagsNum":2  
}
```