Web Apps - Update Vnet Connection

Service:

App Service

API Version:

2025-05-01

Description for Adds a Virtual Network connection to an app or slot (PUT) or updates the connection properties (PATCH).

PATCH https://management.azure.com/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Web/sites/{name}/virtualNetworkConnections/{vnetName}?api-version=2025-05-01

URI Parameters

Name	In	Required	Type	Description
name	path	True	string	Name of the app.
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.
vnetName	path	True	string	Name of the virtual network.
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.certBlob	string	A certificate file (.cer) blob containing the public key of the private key used to authenticate a \nPoint-To-Site VPN connection.
properties.dnsServers	string	DNS servers to be used by this Virtual Network. This should be a comma-separated list of IP addresses.
properties.isSwift	boolean	Flag that is used to denote if this is VNET injection
properties.vnetResourceId	string	The Virtual Network's resource ID.

Responses

Name	Type	Description
200 OK	VnetInfoResource	Azure operation completed successfully.
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

Definitions

Name	Description
createdByType	The type of identity that created the resource.
DefaultErrorResponse	App Service error response.
DefaultErrorResponseError	Error model.
DefaultErrorResponseErrorDetailsItem	Detailed errors.
RouteType	The type of route this is: DEFAULT - By default, every app has routes to the local address ranges specified by RFC1918 INHERITED - Routes inherited from the real Virtual Network routes STATIC - Static route set on the app only These values will be used for syncing an app's routes with those from a Virtual Network.
systemData	Metadata pertaining to creation and last modification of the resource.
VnetInfoResource	Virtual Network information ARM resource.
VnetRoute	Virtual Network route contract used to pass routing information for a Virtual Network.

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.

RouteType

Enumeration

The type of route this is: DEFAULT - By default, every app has routes to the local address ranges specified by RFC1918 INHERITED - Routes inherited from the real Virtual Network routes STATIC - Static route set on the app only

These values will be used for syncing an app's routes with those from a Virtual Network.

Value	Description
DEFAULT
INHERITED
STATIC

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.

VnetInfoResource

Object

Virtual Network information 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.certBlob	string	A certificate file (.cer) blob containing the public key of the private key used to authenticate a \nPoint-To-Site VPN connection.
properties.certThumbprint	string	The client certificate thumbprint.
properties.dnsServers	string	DNS servers to be used by this Virtual Network. This should be a comma-separated list of IP addresses.
properties.isSwift	boolean	Flag that is used to denote if this is VNET injection
properties.resyncRequired	boolean	true if a resync is required; otherwise, false.
properties.routes	VnetRoute[]	The routes that this Virtual Network connection uses.
properties.vnetResourceId	string	The Virtual Network's resource ID.
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"

VnetRoute

Object

Virtual Network route contract used to pass routing information for a Virtual Network.

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.endAddress	string	The ending address for this route. If the start address is specified in CIDR notation, this must be omitted.
properties.routeType	RouteType	The type of route this is: DEFAULT - By default, every app has routes to the local address ranges specified by RFC1918 INHERITED - Routes inherited from the real Virtual Network routes STATIC - Static route set on the app only These values will be used for syncing an app's routes with those from a Virtual Network.
properties.startAddress	string	The starting address for this route. This may also include a CIDR notation, in which case the end address must not be specified.
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"