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Using Advanced Features

Last updated: 2020-03-04 15:22:38

    Operation Scenarios

    This document describes how to use the advanced features of TCCLI International Version, including multi-version API access, nearest access point specifying, and return result filtering.

    Directions

    Multi-version API access

    Some products may have multiple versions of APIs, and TCCLI accesses the latest version by default. If you want to access a specific legacy version, you can do so in the following way (with CVM as an example).

    # Set the default version of the CVM product: 2017-03-12
    tccli configure set cvm.version 2017-03-12
    
    # Specify the version number in real time when using
    tccli cvm help --version 2017-03-12
    tccli cvm DescribeZones help --version 2017-03-12
    tccli cvm DescribeZones --version 2017-03-12

    Specify the nearest access point (Endpoint)

    By default, TCCLI requests the nearest endpoint for accessing a service. You can also specify your own endpoint for a product (with CVM as an example).

    # Set the default endpoint of the CVM product
    tccli configure set cvm.endpoint cvm.ap-guangzhou.tencentcloudapi.com
    
    # Specify in real time when calling
    tccli cvm DescribeZones --endpoint cvm.ap-guangzhou.tencentcloudapi.com

    Filtering return results

    1. Output without any filtering (with the return result of CVM DescribeZones API as an example):

      [root@VM_180_248_centos ~]# tccli cvm DescribeZones
      {
       "TotalCount": 4,
       "ZoneSet": [
           {
               "ZoneState": "AVAILABLE",
               "ZoneId": "100001",
               "Zone": "ap-guangzhou-1",
               "ZoneName": "Guangzhou Zone 1"
           },
           {
               "ZoneState": "AVAILABLE",
               "ZoneId": "100002",
               "Zone": "ap-guangzhou-2",
               "ZoneName": "Guangzhou Zone 2"
           },
           {
               "ZoneState": "AVAILABLE",
               "ZoneId": "100003",
               "Zone": "ap-guangzhou-3",
               "ZoneName": "Guangzhou Zone 3"
           },
           {
               "ZoneState": "AVAILABLE",
               "ZoneId": "100004",
               "Zone": "ap-guangzhou-4",
               "ZoneName": "Guangzhou Zone 4"
           }
       ],
       "RequestId": "4fd313a6-155f-4c7a-bf86-898c02fcae02"
      }
    2. View a specified field:

      [root@VM_180_248_centos ~]# tccli cvm DescribeZones  --filter TotalCount
      4
    3. View the information of the Nth sub-object of a specified object in array type.

      [root@VM_180_248_centos ~]# tccli cvm DescribeZones  --filter ZoneSet[0]
      {
       "ZoneState": "AVAILABLE",
       "ZoneId": "100001",
       "Zone": "ap-guangzhou-1",
       "ZoneName": "Guangzhou Zone 1"
      }
    4. View a certain field of all the sub-objects with a certain name under the specified object in array type.

      [root@VM_180_248_centos ~]# tccli cvm DescribeZones  --filter ZoneSet[*].ZoneName
      [
       "Guangzhou Zone 1",
       "Guangzhou Zone 2",
       "Guangzhou Zone 3",
       "Guangzhou Zone 4"
      ]
    5. Filter the sub-objects in the array and then present them under a new name:

      Note:

      The content that defines the filtering behavior needs to be marked with single quotes.

       [root@VM_180_248_centos ~]# tccli cvm DescribeZones  --filter 'ZoneSet[*].{name:ZoneName, id:ZoneId}'
       [
               {
                       "name": "Guangzhou Zone 1",
                       "id": "100001"
               },
               {
                       "name": "Guangzhou Zone 2",
                       "id": "100002"
               },
               {
                       "name": "Guangzhou Zone 3",
                       "id": "100003"
               },
               {
                       "name": "Guangzhou Zone 4",
                       "id": "100004"
               }
       ]
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