Querying Flavors

Function

This API is used to query all available load balancer flavors in a specific region. You can specify these Layer 4 or Layer 7 flavors when creating a dedicated load balancer.

Constraints

This API has the following constraints:

Parameters marker, limit, and page_reverse are used for pagination query.
Parameters marker and page_reverse take effect only when they are used together with parameter limit.

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

elb:flavors:list

List

flavor *

-

-

-

Action	Access Level	Resource Type (*: required)	Condition Key	Alias	Dependencies
elb:flavors:list	List	flavor *	-	-	-

URI

GET /v3/{project_id}/elb/flavors

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Definition: Specifies the project ID. For details about how to obtain a project ID, see Obtaining a Project ID. Constraints: N/A Range: The value can contain a maximum of 32 characters, including digits and lowercase letters. Default value: N/A

**Table 2** Query Parameters
Parameter	Mandatory	Type	Description
marker	No	String	Definition: Specifies the ID of the last record on the previous page. Constraints: This parameter must be used together with limit. If the parameter is not specified, only resources on the first page are queried. This parameter cannot be left blank or set to an invalid ID. Range: N/A Default value: N/A
limit	No	Integer	Definition: Specifies the number of records returned on each page. Constraints: N/A Range: 0 to 2000 Default value: 2000
page_reverse	No	Boolean	Definition: Specifies whether to use reverse query. Constraints: This parameter must be used together with limit. If page_reverse is set to true and you want to query the resources on the previous page, set the value of marker to the value of previous_marker. Range: true: Query resources on the previous page. false: Query resources on the next page. Default value: false
id	No	Array of strings	Definition: Specifies the flavor ID. Multiple IDs can be used for query in the format of id=xxx&id=xxx. Constraints: N/A Range: N/A Default value: N/A
name	No	Array of strings	Definition: Specifies the flavor name. Multiple names can be used for query in the format of name=xxx&name=xxx. Constraints: N/A Range: N/A Default value: N/A
type	No	Array of strings	Definition: Specifies the flavor type. Multiple types can be used for query in the format of type=xxx&type=xxx. Constraints: N/A Range: L4 indicates a Layer 4 flavor and L7 indicates a Layer 7 flavor. gwlb indicates the flavor of a gateway load balancer. L4_elastic indicates the minimum elastic flavor at Layer 4 and L7_elastic indicates the minimum elastic flavor at Layer 7. L4_elastic_max indicates the maximum elastic flavor at Layer 4, gwlb_elastic_max indicates the maximum gateway elastic flavor, and L7_elastic_max indicates the maximum elastic flavor at Layer 7. Default value: N/A
shared	No	Boolean	Definition: Specifies whether to query the flavors available to all users. Constraints: N/A Range: true: Query the flavors available to all users. false: Query the flavors only available to the current user. Default value: N/A
public_border_group	No	Array of strings	Definition: Specifies the public border group. Multiple public border groups can be queried in the format of public_border_group=xxx&public_border_group=xxx. Constraints: N/A Range: center: public border group of the central site Edge site name: public border group of an edge site Default value: N/A
category	No	Array of integers	Definition: Specifies the AZ category code. This parameter is used to identify the type of an edge AZ. Multiple categories can be used for query in the format of category=xxx&category=xxx. Constraints: N/A Range: 0 (central AZs), 21 (HomeZones AZs), and 41 (edge AZs) Default value: N/A
list_all	No	Boolean	Definition: Whether to query all the maximum elastic flavors of a specific user. Constraints: N/A Range: true: All the maximum elastic flavors defined by l4_elastic_max and l7_elastic_max are returned. false: Only the largest elastic flavors will be returned. For Layer 4 load balancers, the flavor with highest cps value is returned. If the cps values are the same, the flavor with highest bandwidth value is returned. For Layer 7 load balancers, the flavor with highest https_cps value is returned. If the https_cps values are the same, the flavor with highest qps value is returned. Default value: N/A
flavor_sold_out	No	Boolean	Specifies whether load balancers of this flavor are unavailable. Constraints: N/A true indicates load balancers of this flavor are unavailable. false indicates load balancers of this flavor are available. Default value: N/A

Request Parameters

**Table 3** Request header parameters
Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	Definition: Specifies the token used for IAM authentication. Constraints: N/A Range: N/A Default value: N/A

Response Parameters

Status code: 200

**Table 4** Response body parameters
Parameter	Type	Description
flavors	Array of Flavor objects	Definition: Specifies the flavor list.
page_info	PageInfo object	Definition: Specifies the pagination information.
request_id	String	Definition: Specifies the request ID. Range: The value is automatically generated, and can contain characters including digits, lowercase letters, and hyphens (-).

**Table 5** Flavor
Parameter	Type	Description
id	String	Definition: Specifies the flavor ID. Range: N/A
info	FlavorInfo object	Definition: Specifies the flavor metrics. Range: N/A
name	String	Definition: Specifies the flavor name. Range: Network load balancers have the following flavors: L4_flavor.elb.s1.small: small I L4_flavor.elb.s2.small: small II L4_flavor.elb.s1.medium: medium I L4_flavor.elb.s2.medium: medium II L4_flavor.elb.s1.large: large I L4_flavor.elb.s2.large: Large II L4_flavor.elb.pro.max: elastic flavor at Layer 4 Application load balancers have the following flavors: L7_flavor.elb.s1.small: small I L7_flavor.elb.s2.small: small II L7_flavor.elb.s1.medium: medium I L7_flavor.elb.s2.medium: medium II L7_flavor.elb.s1.large: large I L7_flavor.elb.s2.large: Large II L7_flavor.elb.s1.extra-large: extra-large I L7_flavor.elb.s2.extra-large: extra-large II L7_flavor.elb.pro.max: elastic flavor at Layer
shared	Boolean	Definition: Specifies whether the flavor is available to all users. Range: true indicates that the flavor is available to all users. false indicates that the flavor is available only to the current user.
project_id	String	Definition: Specifies the project ID. For details about how to obtain a project ID, see Obtaining a Project ID. Range: The value can contain a maximum of 32 characters, including digits and lowercase letters.
type	String	Definition: Specifies the flavor type. Range: L4 indicates a Layer 4 flavor and L7 indicates a Layer 7 flavor. gwlb indicates the flavor of a gateway load balancer. L4_elastic indicates the minimum elastic flavor at Layer 4 and L7_elastic indicates the minimum elastic flavor at Layer 7. This parameter has been discarded. Please do not use it. L4_elastic_max indicates the maximum elastic flavor at Layer 4, gwlb_elastic_max indicates the maximum gateway elastic flavor, and L7_elastic_max indicates the maximum elastic flavor at Layer 7.
flavor_sold_out	Boolean	Definition: Specifies whether load balancers of this flavor cannot be purchased. Range: true: false:
public_border_group	String	Definition: Specifies the public border group. Range: center: public border group of the central site Edge site name: public border group of an edge site
category	Integer	Definition: Specifies the AZ category code. This parameter is used to identify the type of an edge AZ. Range: 0 (central AZs), 21 (HomeZones AZs), and 41 (edge AZs)

**Table 6** FlavorInfo
Parameter	Type	Description
connection	Integer	Definition: Specifies the maximum number of concurrent connections per second. Unit: count Range: N/A
cps	Integer	Definition: Specifies the number of new connections per second. Unit: count Range: N/A
tls_connection	Integer	Definition: Specifies the maximum number of concurrent TLS connections per second. Unit: count Range: N/A
tls_cps	Integer	Definition: Specifies the maximum number of new TLS connections per second. Unit: count Range: N/A
qps	Integer	Definition: Specifies the number of queries per second (QPS). Unit: count. This parameter is available only for load balancers at Layer 7. Range: N/A
bandwidth	Integer	Definition: Specifies the bandwidth, in kbit/s. Range: N/A
lcu	Integer	Definition: Specifies the number of LCUs supported by the flavor. Unit: count Range: N/A NOTE: An LCU measures the dimensions on which a dedicated load balancer routes the traffic. A higher value indicates better performance.
https_cps	Integer	Definition: Specifies the number of new HTTPS connections. This parameter is available only for load balancers at Layer 7. Unit: count Range: N/A

**Table 7** PageInfo
Parameter	Type	Description
previous_marker	String	Definition: Specifies the ID of the first record in the pagination query result. If page_reverse is set to true, this parameter is used together to query resources on the previous page. Range: N/A
next_marker	String	Definition: Specifies the ID of the last record in the pagination query result. It is usually used to query resources on the next page. Range: N/A
current_count	Integer	Definition: Specifies the number of records returned on the current page. Range: N/A

Example Requests

Querying load balancer flavors

GET https://{ELB_Endpoint}/v3/057ef081eb00d2732fd1c01a9be75e6f/elb/flavors?limit=2&marker=179568ef-5ba4-4ca0-8c5e-5d581db779b1

Example Responses

Status code: 200

Successful request.

{
  "request_id" : "01e84c2750b7217e5903b3d3bc9a9fda",
  "flavors" : [ {
    "name" : "L7_flavor.elb.s1.small",
    "shared" : true,
    "project_id" : "060576798a80d5762fafc01a9b5eedc7",
    "info" : {
      "bandwidth" : 50000,
      "connection" : 200000,
      "cps" : 2000,
      "https_cps" : 200,
      "lcu" : 10,
      "qps" : 4000
    },
    "id" : "037418d4-8c9e-40b8-9e54-70ff4848fd82",
    "type" : "L7",
    "flavor_sold_out" : false,
    "public_border_group" : "center",
    "category" : 0
  }, {
    "name" : "L4_flavor.elb.s2.small",
    "shared" : true,
    "project_id" : "8d53f081ea24444aa95e2bfa942ef6ee",
    "info" : {
      "bandwidth" : 100000,
      "connection" : 1000000,
      "cps" : 20000,
      "lcu" : 20
    },
    "id" : "03925294-4ae2-4cdb-b912-cf171e782095",
    "type" : "L4",
    "flavor_sold_out" : false,
    "public_border_group" : "center",
    "category" : 0
  } ],
  "page_info" : {
    "next_marker" : "03925294-4ae2-4cdb-b912-cf171e782095",
    "previous_marker" : "037418d4-8c9e-40b8-9e54-70ff4848fd82",
    "current_count" : 2
  }
}

SDK Sample Code

The SDK sample code is as follows.

     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.elb.v3.region.ElbRegion;
import com.huaweicloud.sdk.elb.v3.*;
import com.huaweicloud.sdk.elb.v3.model.*;


public class ListFlavorsSolution {

    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");
        String projectId = "{project_id}";

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

        ElbClient client = ElbClient.newBuilder()
                .withCredential(auth)
                .withRegion(ElbRegion.valueOf("<YOUR REGION>"))
                .build();
        ListFlavorsRequest request = new ListFlavorsRequest();
        try {
            ListFlavorsResponse response = client.listFlavors(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());
        }
    }
}
 
 
  

     # coding: utf-8

import os
from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdkelb.v3.region.elb_region import ElbRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkelb.v3 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"]
    projectId = "{project_id}"

    credentials = BasicCredentials(ak, sk, projectId)

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

    try:
        request = ListFlavorsRequest()
        response = client.list_flavors(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)
 
 
  

     package main

import (
	"fmt"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
    elb "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/elb/v3"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/elb/v3/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/elb/v3/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")
    projectId := "{project_id}"

    auth, err := basic.NewCredentialsBuilder().
        WithAk(ak).
        WithSk(sk).
        WithProjectId(projectId).
        SafeBuild()

    if err != nil {
        fmt.Println(err)
        return
    }

    hcClient, err := elb.ElbClientBuilder().
         WithRegion(region.ValueOf("<YOUR REGION>")).
         WithCredential(auth).
         SafeBuild()


    if err != nil {
        fmt.Println(err)
        return
    }

    client := elb.NewElbClient(hcClient)

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