Updated on 2024-07-27 GMT+08:00

Querying Flavors

Function

This API is used to query all load balancer flavors that are available to a specific user in a specific region.

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.

URI

GET /v3/{project_id}/elb/flavors

Table 1 Path Parameters

Parameter

Mandatory

Type

Description

project_id

Yes

String

Specifies the project ID.

Table 2 Query Parameters

Parameter

Mandatory

Type

Description

marker

No

String

Specifies the ID of the last record on the previous page.

Note:

  • This parameter must be used together with limit.

  • If this parameter is not specified, the first page will be queried.

  • This parameter cannot be left blank or set to an invalid ID.

limit

No

Integer

Specifies the number of records on each page.

Minimum: 0

Maximum: 2000

Default: 2000

page_reverse

No

Boolean

Specifies whether to use reverse query. Values:

  • true: Query the previous page.

  • false (default): Query the next page.

Note:

  • This parameter must be used together with limit.

  • If page_reverse is set to true and you want to query the previous page, set the value of marker to the value of previous_marker.

id

No

Array

Specifies the flavor ID.

Multiple IDs can be queried in the format of id=xxx&id=xxx.

name

No

Array

Specifies the flavor name.

Multiple names can be queried in the format of name=xxx&name=xxx.

type

No

Array

Specifies the flavor type. The type can be:

  • L4 indicates a Layer-4 flavor.

  • L7 indicates a Layer-7 flavor.

  • L4_elastic indicates the minimum Layer-4 flavor for elastic scaling. L7_elastic indicates the minimum Layer-7 flavor for elastic scaling.

  • L4_elastic_max indicates the maximum Layer-4 flavor for elastic scaling. L7_elastic_max indicates the maximum Layer-7 flavor for elastic scaling.

Multiple types can be queried in the format of type=xxx&type=xxx.

shared

No

Boolean

Specifies whether the flavor is available to all users.

  • true indicates that the flavor is available to all users.

  • false indicates that the flavor is available only to a specific user.

Request Parameters

Table 3 Request header parameters

Parameter

Mandatory

Type

Description

X-Auth-Token

Yes

String

Specifies the token used for IAM authentication.

Response Parameters

Status code: 200

Table 4 Response body parameters

Parameter

Type

Description

flavors

Array of Flavor objects

Lists the flavors.

page_info

PageInfo object

Shows pagination information about the load balancer flavors.

request_id

String

Specifies the request ID. The value is automatically generated.

Table 5 Flavor

Parameter

Type

Description

id

String

Specifies the flavor ID.

info

FlavorInfo object

Specifies the flavor metrics.

name

String

Specifies the flavor name.

  • L4_flavor.elb.s1.small

  • L4_flavor.elb.s2.small

  • L4_flavor.elb.s1.medium

  • L4_flavor.elb.s2.medium

  • L4_flavor.elb.s1.large

  • L4_flavor.elb.s2.large

  • L4_flavor.elb.pro.max

  • L7_flavor.elb.s1.small

  • L7_flavor.elb.s2.small

  • L7_flavor.elb.s1.medium

  • L7_flavor.elb.s2.medium

  • L7_flavor.elb.s1.large

  • L7_flavor.elb.s2.large

  • L7_flavor.elb.s1.extra-large

  • L7_flavor.elb.s2.extra-large

  • L7_flavor.elb.pro.max

shared

Boolean

Specifies whether the flavor is available to all users.

  • true indicates that the flavor is available to all users.

  • false indicates that the flavor is available only to a specific user.

project_id

String

Specifies the project ID.

type

String

Specifies the flavor type. The type can be:

  • L4 indicates a Layer-4 flavor.

  • L7 indicates a Layer-7 flavor.

  • L4_elastic indicates the minimum Layer-4 flavor for elastic scaling. L7_elastic indicates the minimum Layer-7 flavor for elastic scaling.

  • L4_elastic_max indicates the maximum Layer-4 flavor for elastic scaling. L7_elastic_max indicates the maximum Layer-7 flavor for elastic scaling.

Minimum: 1

Maximum: 32

flavor_sold_out

Boolean

Specifies the flavor is available.

  • true indicates you can create a load balancer with this flavor.

  • false indicates you cannot create a load balancer with this flavor.

public_border_group

String

Specifies the AZ group, for example, center.

category

Integer

Specifies the AZ code. 0 indicates center. 21 indicates homezone.

Table 6 FlavorInfo

Parameter

Type

Description

connection

Integer

Specifies the number of concurrent connections per second.

cps

Integer

Specifies the number of new connections per second.

qps

Integer

Specifies the number of requests per second. This parameter is available only for load balancers at Layer 7.

bandwidth

Integer

Specifies the bandwidth.

lcu

Integer

Specifies the number of LCUs in the flavor. An LCU measures the dimensions on which a dedicated load balancer routes the traffic. The higher value indicates better performance.

https_cps

Integer

Specifies the number of new HTTPS connections. This parameter is available only for load balancers at Layer 7.

Table 7 PageInfo

Parameter

Type

Description

previous_marker

String

Specifies the ID of the first record in the pagination query result.

next_marker

String

Specifies the ID of the last record in the pagination query result.

current_count

Integer

Specifies the number of records.

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.basic.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_basic",
    "flavor_sold_out" : false
  }, {
    "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
  } ],
  "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.

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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.*;

import java.util.List;
import java.util.ArrayList;

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");

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

        ElbClient client = ElbClient.newBuilder()
                .withCredential(auth)
                .withRegion(ElbRegion.valueOf("<YOUR REGION>"))
                .build();
        ListFlavorsRequest request = new ListFlavorsRequest();
        request.withMarker("<marker>");
        request.withLimit(<limit>);
        request.withPageReverse(<page_reverse>);
        request.withId();
        request.withName();
        request.withType();
        request.withShared(<shared>);
        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());
        }
    }
}
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# 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"]

    credentials = BasicCredentials(ak, sk)

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

    try:
        request = ListFlavorsRequest()
        request.marker = "<marker>"
        request.limit = <limit>
        request.page_reverse = <PageReverse>
        request.id = 
        request.name = 
        request.type = 
        request.shared = <Shared>
        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)
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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")

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

    client := elb.NewElbClient(
        elb.ElbClientBuilder().
            WithRegion(region.ValueOf("<YOUR REGION>")).
            WithCredential(auth).
            Build())

    request := &model.ListFlavorsRequest{}
	markerRequest:= "<marker>"
	request.Marker = &markerRequest
	limitRequest:= int32(<limit>)
	request.Limit = &limitRequest
	pageReverseRequest:= <page_reverse>
	request.PageReverse = &pageReverseRequest
	sharedRequest:= <shared>
	request.Shared = &sharedRequest
	response, err := client.ListFlavors(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

Successful request.

Error Codes

See Error Codes.