Updated on 2026-02-27 GMT+08:00

List API Versions

Function

This API is used to list all OMS API versions.

Calling Method

For details, see Calling APIs.

Authorization Information

Each account has all the permissions required to call all APIs, but IAM users must be assigned the required permissions.

  • If you are using role/policy-based authorization, see Permissions Policies and Supported Actions for details on the required permissions.
  • If you are using identity policy-based authorization, the following identity policy-based permissions are required.

    Action

    Access Level

    Resource Type (*: required)

    Condition Key

    Alias

    Dependencies

    oms:task:list

    List

    task *

    -

    -

    -

URI

GET /

Request Parameters

Table 1 Request header parameters

Parameter

Mandatory

Type

Description

X-Auth-Token

Yes

String

The token used for IAM authentication.

Minimum: 1

Maximum: 16384

Response Parameters

Status code: 200

Table 2 Response body parameters

Parameter

Type

Description

versions

Array of Version objects

The version list.

Array Length: 0 - 1024

Table 3 Version

Parameter

Type

Description

id

String

The API version, for example, v1.

links

Array of Link objects

The link address.

Array Length: 0 - 100

status

String

The version status.

CURRENT: indicates a widely used version.

SUPPORTED: indicates an earlier version which is still supported.

DEPRECATED: indicates a deprecated version which may be deleted later.

Enumeration values:

  • CURRENT

  • DEPRECATED

  • SUPPORTED

updated

String

The time when the version was updated.

The format is yyyy-mm-ddThh:mm:ssZ.

T is the separator between the calendar and the hourly notation of time. Z indicates the Coordinated Universal Time (UTC).

Minimum: 0

Maximum: 32

Status code: 403

Table 5 Response body parameters

Parameter

Type

Description

error_msg

String

Error message.

error_code

String

Error code.

Example Requests

This example queries the list of supported API versions.

GET https://{endpoint}/

Example Responses

Status code: 200

OK

{
  "versions" : [ {
    "links" : [ {
      "rel" : "self",
      "href" : "https://oms.cn-north-1.myhuaweicloud.com/v1/"
    } ],
    "id" : "v1",
    "updated" : "2020-01-01T12:00:00Z",
    "status" : {
      "type" : "string",
      "example" : "SUPPORTED",
      "description" : "The version status. The default value is **SUPPORTED**.\n**CURRENT**: indicates a widely used version.\n**DEPRECATED**: indicates a deprecated version which may be deleted later.\n**SUPPORTED** (default value): indicates an earlier version which is still supported.",
      "enum" : [ "CURRENT", "DEPRECATED", "SUPPORTED" ],
      "default" : "SUPPORTED"
    }
  }, {
    "links" : [ {
      "rel" : "self",
      "href" : "https://oms.cn-north-1.myhuaweicloud.com/v2/"
    } ],
    "id" : "v1",
    "updated" : "2020-01-01T12:00:00Z",
    "status" : {
      "type" : "string",
      "example" : "SUPPORTED",
      "description" : "The version status. The default value is **SUPPORTED**.\n**CURRENT**: indicates a widely used version.\n**DEPRECATED**: indicates a deprecated version which may be deleted later.\n**SUPPORTED** (default value): indicates an earlier version which is still supported.",
      "enum" : [ "CURRENT", "DEPRECATED", "SUPPORTED" ],
      "default" : "SUPPORTED"
    }
  } ]
}

SDK Sample Code

The SDK sample code is as follows.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
package com.huaweicloud.sdk.test;

import com.huaweicloud.sdk.core.auth.ICredential;
import com.huaweicloud.sdk.core.auth.BasicCredentials;
import com.huaweicloud.sdk.core.exception.ConnectionException;
import com.huaweicloud.sdk.core.exception.RequestTimeoutException;
import com.huaweicloud.sdk.core.exception.ServiceResponseException;
import com.huaweicloud.sdk.oms.v2.region.OmsRegion;
import com.huaweicloud.sdk.oms.v2.*;
import com.huaweicloud.sdk.oms.v2.model.*;


public class ListApiVersionsSolution {

    public static void main(String[] args) {
        // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
        // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
        String ak = System.getenv("CLOUD_SDK_AK");
        String sk = System.getenv("CLOUD_SDK_SK");

        ICredential auth = new BasicCredentials()
                .withAk(ak)
                .withSk(sk);

        OmsClient client = OmsClient.newBuilder()
                .withCredential(auth)
                .withRegion(OmsRegion.valueOf("<YOUR REGION>"))
                .build();
        ListApiVersionsRequest request = new ListApiVersionsRequest();
        try {
            ListApiVersionsResponse response = client.listApiVersions(request);
            System.out.println(response.toString());
        } catch (ConnectionException e) {
            e.printStackTrace();
        } catch (RequestTimeoutException e) {
            e.printStackTrace();
        } catch (ServiceResponseException e) {
            e.printStackTrace();
            System.out.println(e.getHttpStatusCode());
            System.out.println(e.getRequestId());
            System.out.println(e.getErrorCode());
            System.out.println(e.getErrorMsg());
        }
    }
}
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
# coding: utf-8

import os
from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdkoms.v2.region.oms_region import OmsRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkoms.v2 import *

if __name__ == "__main__":
    # The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
    # In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
    ak = os.environ["CLOUD_SDK_AK"]
    sk = os.environ["CLOUD_SDK_SK"]

    credentials = BasicCredentials(ak, sk)

    client = OmsClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(OmsRegion.value_of("<YOUR REGION>")) \
        .build()

    try:
        request = ListApiVersionsRequest()
        response = client.list_api_versions(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
package main

import (
	"fmt"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
    oms "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/oms/v2"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/oms/v2/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/oms/v2/region"
)

func main() {
    // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
    // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
    ak := os.Getenv("CLOUD_SDK_AK")
    sk := os.Getenv("CLOUD_SDK_SK")

    auth := basic.NewCredentialsBuilder().
        WithAk(ak).
        WithSk(sk).
        Build()

    client := oms.NewOmsClient(
        oms.OmsClientBuilder().
            WithRegion(region.ValueOf("<YOUR REGION>")).
            WithCredential(auth).
            Build())

    request := &model.ListApiVersionsRequest{}
	response, err := client.ListApiVersions(request)
	if err == nil {
        fmt.Printf("%+v\n", response)
    } else {
        fmt.Println(err)
    }
}

For SDK sample code of more programming languages, see the Sample Code tab in API Explorer. SDK sample code can be automatically generated.

Status Codes

Status Code

Description

200

OK

403

Forbidden

Error Codes

See Error Codes.