Backend - Get Entity Tag

Service:

API Management

API Version:

2022-08-01

Gets the entity state (Etag) version of the backend specified by its identifier.

HEAD https://management.azure.com/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ApiManagement/service/{serviceName}/backends/{backendId}?api-version=2022-08-01

URI Parameters

Name	In	Required	Type	Description
backendId	path	True	string	Identifier of the Backend entity. Must be unique in the current API Management service instance.
resourceGroupName	path	True	string	The name of the resource group. The name is case insensitive.
serviceName	path	True	string	The name of the API Management service. Regex pattern: ^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$
subscriptionId	path	True	string	The ID of the target subscription.
api-version	query	True	string	The API version to use for this operation.

Responses

Name	Type	Description
200 OK		Specified backend entity exists and current entity state version is present in the ETag header. Headers ETag: string
Other Status Codes	ErrorResponse	Error response describing why the operation failed.

Security

azure_auth

Azure Active Directory OAuth2 Flow.

Type: oauth2
Flow: implicit
Authorization URL: https://login.microsoftonline.com/common/oauth2/authorize

Scopes

Name	Description
user_impersonation	impersonate your user account

Examples

ApiManagementHeadBackend

Sample Request

HTTP

HEAD https://management.azure.com/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.ApiManagement/service/apimService1/backends/sfbackend?api-version=2022-08-01

Java

/** Samples for Backend GetEntityTag. */
public final class Main {
    /*
     * x-ms-original-file: specification/apimanagement/resource-manager/Microsoft.ApiManagement/stable/2022-08-01/examples/ApiManagementHeadBackend.json
     */
    /**
     * Sample code: ApiManagementHeadBackend.
     *
     * @param manager Entry point to ApiManagementManager.
     */
    public static void apiManagementHeadBackend(com.azure.resourcemanager.apimanagement.ApiManagementManager manager) {
        manager
            .backends()
            .getEntityTagWithResponse("rg1", "apimService1", "sfbackend", com.azure.core.util.Context.NONE);
    }
}

To use the Azure SDK library in your project, see this documentation. To provide feedback on this code sample, open a GitHub issue

Python

from azure.identity import DefaultAzureCredential

from azure.mgmt.apimanagement import ApiManagementClient

"""
# PREREQUISITES
    pip install azure-identity
    pip install azure-mgmt-apimanagement
# USAGE
    python api_management_head_backend.py

    Before run the sample, please set the values of the client ID, tenant ID and client secret
    of the AAD application as environment variables: AZURE_CLIENT_ID, AZURE_TENANT_ID,
    AZURE_CLIENT_SECRET. For more info about how to get the value, please see:
    https://docs.microsoft.com/azure/active-directory/develop/howto-create-service-principal-portal
"""


def main():
    client = ApiManagementClient(
        credential=DefaultAzureCredential(),
        subscription_id="subid",
    )

    response = client.backend.get_entity_tag(
        resource_group_name="rg1",
        service_name="apimService1",
        backend_id="sfbackend",
    )
    print(response)


# x-ms-original-file: specification/apimanagement/resource-manager/Microsoft.ApiManagement/stable/2022-08-01/examples/ApiManagementHeadBackend.json
if __name__ == "__main__":
    main()

To use the Azure SDK library in your project, see this documentation. To provide feedback on this code sample, open a GitHub issue

Go

package armapimanagement_test

import (
	"context"
	"log"

	"github.com/Azure/azure-sdk-for-go/sdk/azidentity"
	"github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/apimanagement/armapimanagement/v2"
)

// Generated from example definition: https://github.com/Azure/azure-rest-api-specs/blob/4cd95123fb961c68740565a1efcaa5e43bd35802/specification/apimanagement/resource-manager/Microsoft.ApiManagement/stable/2022-08-01/examples/ApiManagementHeadBackend.json
func ExampleBackendClient_GetEntityTag() {
	cred, err := azidentity.NewDefaultAzureCredential(nil)
	if err != nil {
		log.Fatalf("failed to obtain a credential: %v", err)
	}
	ctx := context.Background()
	clientFactory, err := armapimanagement.NewClientFactory("<subscription-id>", cred, nil)
	if err != nil {
		log.Fatalf("failed to create client: %v", err)
	}
	_, err = clientFactory.NewBackendClient().GetEntityTag(ctx, "rg1", "apimService1", "sfbackend", nil)
	if err != nil {
		log.Fatalf("failed to finish the request: %v", err)
	}
}

To use the Azure SDK library in your project, see this documentation. To provide feedback on this code sample, open a GitHub issue

JavaScript

const { ApiManagementClient } = require("@azure/arm-apimanagement");
const { DefaultAzureCredential } = require("@azure/identity");

/**
 * This sample demonstrates how to Gets the entity state (Etag) version of the backend specified by its identifier.
 *
 * @summary Gets the entity state (Etag) version of the backend specified by its identifier.
 * x-ms-original-file: specification/apimanagement/resource-manager/Microsoft.ApiManagement/stable/2022-08-01/examples/ApiManagementHeadBackend.json
 */
async function apiManagementHeadBackend() {
  const subscriptionId = process.env["APIMANAGEMENT_SUBSCRIPTION_ID"] || "subid";
  const resourceGroupName = process.env["APIMANAGEMENT_RESOURCE_GROUP"] || "rg1";
  const serviceName = "apimService1";
  const backendId = "sfbackend";
  const credential = new DefaultAzureCredential();
  const client = new ApiManagementClient(credential, subscriptionId);
  const result = await client.backend.getEntityTag(resourceGroupName, serviceName, backendId);
  console.log(result);
}

To use the Azure SDK library in your project, see this documentation. To provide feedback on this code sample, open a GitHub issue

Sample Response

Status code:

200

etag: AAAAAAAAAAa=

Definitions

Name	Description
ErrorFieldContract	Error Field contract.
ErrorResponse	Error Response.

ErrorFieldContract

Error Field contract.

Name	Type	Description
code	string	Property level error code.
message	string	Human-readable representation of property-level error.
target	string	Property name.

ErrorResponse

Error Response.

Name	Type	Description
error.code	string	Service-defined error code. This code serves as a sub-status for the HTTP error code specified in the response.
error.details	ErrorFieldContract[]	The list of invalid fields send in request, in case of validation error.
error.message	string	Human-readable representation of the error.