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Glossary

DescribeReservedInstances

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Last updated: 2025-11-13 11:08:05

1. API Description

Domain name for API request: cvm.intl.tencentcloudapi.com.

This API is used to list the reserved instances purchased by the user.

A maximum of 10 requests can be initiated per second for this API.

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API Explorer provides a range of capabilities, including online call, signature authentication, SDK code generation, and API quick search. It enables you to view the request, response, and auto-generated examples.

2. Input Parameters

The following request parameter list only provides API request parameters and some common parameters. For the complete common parameter list, see Common Request Parameters.

Parameter Name Required Type Description
Action Yes String Common Params. The value used for this API: DescribeReservedInstances.
Version Yes String Common Params. The value used for this API: 2017-03-12.
Region Yes String Common Params. For more information, please see the list of regions supported by the product. This API only supports: ap-bangkok, ap-beijing, ap-chengdu, ap-chongqing, ap-guangzhou, ap-hongkong, ap-jakarta, ap-nanjing, ap-seoul, ap-shanghai, ap-shanghai-fsi, ap-shenzhen-fsi, ap-singapore, ap-tokyo, eu-frankfurt, na-ashburn, na-siliconvalley, sa-saopaulo.
DryRun No Boolean Trial run. Default value: false.
Offset No Integer Offset. Default value: 0. For more information on Offset, see the relevant section in API Introduction.
Limit No Integer Number of returned instances. Default value: 20. Maximum value: 100. For more information on Limit, see the relevant section in API Introduction.
Filters.N No Array of Filter
  • zone

  • Filter by [availability zones] in which reserved instances can be purchased. For example, ap-guangzhou-1.

    Type: String.

    Required: No.

    Valid values: See the availability zone list.


  • duration

  • Filter by [validity periods] of reserved instances, which is the instance purchase duration. For example, 31536000.

    Type: Integer.

    Unit: Second.

    Required: No.

    Valid values: 31536000 (1 year) | 94608000 (3 years).


  • instance-type

  • Filter by [specifications of reserved instances]. For example, S3.MEDIUM4.

    Type: String.

    Required: No.

    Valid values: See the reserved instance specification list.


  • instance-family

  • Filter by [types of reserved instances]. For example, S3.

    Type: String.

    Required: No.

    Valid values: See the reserved instance type list.


  • offering-type

  • Filter by payment types]. For example, All Upfront (fully prepaid).

    Type: String.

    Required: No.

    Valid values: All Upfront (fully prepaid) | Partial Upfront (partially prepaid) | No Upfront (non-prepaid).


  • product-description

  • Filter by [platform descriptions] (operating system) of reserved instances. For example, linux.

    Type: String.

    Required: No.

    Valid value: linux.


  • reserved-instances-id

  • Filter by [IDs of purchased reserved instances]. For example, 650c138f-ae7e-4750-952a-96841d6e9fc1.

    Type: String.

    Required: No.


  • state

  • Filter by [statuses of purchased reserved instances]. For example, active.

    Type: String.

    Required: No.

    Valid values: active (created) | pending (waiting to be created) | retired (expired).


    Each request can have up to 10 filters, and each filter can have up to 5 values.

    3. Output Parameters

    Parameter Name Type Description
    TotalCount Integer Number of reserved instances that meet the conditions.
    ReservedInstancesSet Array of ReservedInstances List of reserved instances that meet the conditions.
    RequestId String The unique request ID, generated by the server, will be returned for every request (if the request fails to reach the server for other reasons, the request will not obtain a RequestId). RequestId is required for locating a problem.

    4. Example

    Example1 Listing Purchased Reserved Instances

    This example shows you how to list purchased reserved instances.

    Input Example

    POST / HTTP/1.1
    Host: cvm.intl.tencentcloudapi.com
    Content-Type: application/json
    X-TC-Action: DescribeReservedInstances
    <Common request parameters>
    
    {
        "Offset": 0,
        "Limit": 1,
        "Filters": [
            {
                "Name": "zone",
                "Values": [
                    "ap-singapore-1"
                ]
            }
        ]
    }

    Output Example

    {
        "Response": {
            "RequestId": "dcb99aa2-f50d-43c6-aadd-74775f016db2",
            "ReservedInstancesSet": [
                {
                    "CurrencyCode": "USD",
                    "Duration": 31536000,
                    "EndTime": "2024-07-30 10:59:59",
                    "InstanceCount": 1,
                    "InstanceFamily": "S5",
                    "InstanceType": "S5.MEDIUM2",
                    "OfferingType": "No Upfront",
                    "ProductDescription": "linux",
                    "ReservedInstanceId": "ri-je53w05q",
                    "ReservedInstanceName": "Unnamed",
                    "StartTime": "2023-07-31 10:00:00",
                    "State": "retired",
                    "Zone": "ap-singapore-1"
                }
            ],
            "TotalCount": 3
        }
    }

    5. Developer Resources

    SDK

    TencentCloud API 3.0 integrates SDKs that support various programming languages to make it easier for you to call APIs.

    Command Line Interface

    6. Error Code

    The following only lists the error codes related to the API business logic. For other error codes, see Common Error Codes.

    Error Code Description
    InternalServerError Internal error.
    InvalidFilter Invalid filter.
    InvalidFilterValue.LimitExceeded The value of Filter exceeds the limit.
    InvalidInstanceType.Malformed The specified InstanceType parameter has an invalid format.
    InvalidParameter A parameter error occurred.
    InvalidParameterValue Incorrect parameter value.
    InvalidParameterValue.LimitExceeded The number of parameter values exceeds the limit.
    UnsupportedOperation.InvalidPermissionNonInternationalAccount The current operation is supported only for Tencent Cloud users.
    UnsupportedOperation.ReservedInstanceInvisibleForUser Purchasing reserved instances is not supported for the current user.

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