Static Sites - Link Backend

Service:

App Service

API Version:

2026-07-15

Link backend to a static site

PUT https://management.azure.com/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Web/staticSites/{name}/linkedBackends/{linkedBackendName}?api-version=2026-07-15

URI Parameters

Name	In	Required	Type	Description
linkedBackendName	path	True	string	Name of the linked backend that should be retrieved
name	path	True	string	Name of the static site
resourceGroupName	path	True	string minLength: 1 maxLength: 90	The name of the resource group. The name is case insensitive.
subscriptionId	path	True	string (uuid)	The ID of the target subscription. The value must be an UUID.
api-version	query	True	string minLength: 1	The API version to use for this operation.

Request Body

Name	Type	Description
kind	string	Kind of resource.
properties.backendResourceId	string	The resource id of the backend linked to the static site
properties.region	string	The region of the backend linked to the static site

Responses

Name	Type	Description
200 OK	StaticSiteLinkedBackendARMResource	The request has succeeded. Headers Location: string
Other Status Codes	DefaultErrorResponse	An unexpected error response.

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

Link a backend to a static site

Sample request

HTTP

PUT https://management.azure.com/subscriptions/34adfa4f-cedf-4dc0-ba29-b6d1a69ab345/resourceGroups/rg/providers/Microsoft.Web/staticSites/testStaticSite0/linkedBackends/testBackend?api-version=2026-07-15

{
  "properties": {
    "backendResourceId": "/subscription/34adfa4f-cedf-4dc0-ba29-b6d1a69ab345/resourceGroups/backendRg/providers/Microsoft.Web/sites/testBackend",
    "region": "West US 2"
  }
}

Sample response

Status code:

200

{
  "name": "testBackend",
  "type": "Microsoft.Web/staticSites/builds/linkedBackends",
  "id": "/subscriptions/34adfa4f-cedf-4dc0-ba29-b6d1a69ab345/resourceGroups/rg/providers/Microsoft.Web/staticSites/testStaticSite0/builds/default/linkedBackends/testBackend",
  "properties": {
    "backendResourceId": "/subscription/34adfa4f-cedf-4dc0-ba29-b6d1a69ab345/resourceGroups/backendRg/providers/Microsoft.Web/sites/testBackend",
    "createdOn": "2021-12-24T17:33:11.641Z",
    "provisioningState": "Succeeded",
    "region": "West US 2"
  }
}

Definitions

Name	Description
createdByType	The type of identity that created the resource.
DefaultErrorResponse	App Service error response.
DefaultErrorResponseError	Error model.
DefaultErrorResponseErrorDetailsItem	Detailed errors.
StaticSiteLinkedBackendARMResource	Static Site Linked Backend ARM resource.
systemData	Metadata pertaining to creation and last modification of the resource.

createdByType

Enumeration

The type of identity that created the resource.

Value	Description
User
Application
ManagedIdentity
Key

DefaultErrorResponse

Object

App Service error response.

Name	Type	Description
error	DefaultErrorResponseError	Error model.

DefaultErrorResponseError

Object

Error model.

Name	Type	Description
code	string	Standardized string to programmatically identify the error.
details	DefaultErrorResponseErrorDetailsItem[]	Detailed errors.
innererror	string	More information to debug error.
message	string	Detailed error description and debugging information.
target	string	Detailed error description and debugging information.

DefaultErrorResponseErrorDetailsItem

Object

Detailed errors.

Name	Type	Description
code	string	Standardized string to programmatically identify the error.
message	string	Detailed error description and debugging information.
target	string	Detailed error description and debugging information.

StaticSiteLinkedBackendARMResource

Object

Static Site Linked Backend ARM resource.

Name	Type	Description
id	string (arm-id)	Fully qualified resource ID for the resource. E.g. "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/{resourceProviderNamespace}/{resourceType}/{resourceName}"
kind	string	Kind of resource.
name	string	The name of the resource
properties.backendResourceId	string	The resource id of the backend linked to the static site
properties.createdOn	string (date-time)	The date and time on which the backend was linked to the static site.
properties.provisioningState	string	The provisioning state of the linking process.
properties.region	string	The region of the backend linked to the static site
systemData	systemData	Azure Resource Manager metadata containing createdBy and modifiedBy information.
type	string	The type of the resource. E.g. "Microsoft.Compute/virtualMachines" or "Microsoft.Storage/storageAccounts"

systemData

Object

Metadata pertaining to creation and last modification of the resource.

Name	Type	Description
createdAt	string (date-time)	The timestamp of resource creation (UTC).
createdBy	string	The identity that created the resource.
createdByType	createdByType	The type of identity that created the resource.
lastModifiedAt	string (date-time)	The timestamp of resource last modification (UTC)
lastModifiedBy	string	The identity that last modified the resource.
lastModifiedByType	createdByType	The type of identity that last modified the resource.