Unlock Message

  • Article

Unlocks a message for processing by other receivers on a specified subscription. This operation deletes the lock object, causing the message to be unlocked. Before the operation is called, a receiver must first lock the message.

Request

Method Request URI HTTP Version
PUT http{s}://{serviceNamespace}.servicebus.windows.net/{queuePath}/messages/{messageId|sequenceNumber}/{lockToken}

or

http{s}://{serviceNamespace}.servicebus.windows.net/{topicPath}/subscriptions/{subscriptionName}/messages/{messageId|sequenceNumber}/{lockToken}|HTTP/1.1

URI Parameters

The URI is provided in the Location header of the peeked message, or you can construct it from the parts described in the following table.

Parameter Description
messageId The ID of the message to be unlocked as returned in BrokerProperties{MessageId} by the Peek Message operation.
sequence-number The sequence number of the message to be unlocked as returned in BrokerProperties{SequenceNumber} by the Peek Message operation.
lockToken The token of the lock of the message to be unlocked as returned by the Peek Message operation in BrokerProperties{LockToken}.

Request Headers

The following table describes required and optional request headers.

Request Header Description
Authorization Specify one of the following values:
  • Microsoft Entra JSON Web Token (JWT) token.
    Example: Authorization: Bearer <Azure AD JWT token>.
    For information on generating a Microsoft Entra token, see Authenticate from an application.
  • A SAS token.
    Example: Authorization: SharedAccessSignature sr=<NAMESPACE NAME>.servicebus.windows.net&sig=<SHARED ACCESS KEY>&se=<TOKEN EXPIRY INSTANT>&skn=<SHARED KEY NAME>.
    For information on generating a SAS token, see Generate a Shared Access Signature token and Generate SAS token.

Request Body

None.

Response

The response includes an HTTP status code, a set of response headers, and the response body.

Response Codes

Code Description
200 Message successfully unlocked.
401 Authorization failure.
404 No message was found with the specified MessageId or LockToken.
410 Specified queue or subscription doesn't exist.
500 Internal error.

For information about status codes, see Status and Error Codes.

Response Headers

Response Header Description
Content-Type Set to application/atom+xml;type=entry;charset=utf-8.

Response Body

None.

Example

The following HTTP request unlocks a message:

PUT https://your-namespace.servicebus.windows.net/HttpClientSampleQueue/messages/31907572-1647-43c3-8741-631acd554d6f/7da9cfd5-40d5-4bb1-8d64-ec5a52e1c547?timeout=60 HTTP/1.1  
Authorization: SharedAccessSignature sr=rukochbay&sig=rg9iGsK0ZyYlvhIqyH5IS5tqmeb08h8FstjHLPj3%2f8g%3d&se=1404265946&skn=RootManageSharedAccessKey  
Host: your-namespace.servicebus.windows.net  
Content-Length: 0

Service Bus returns the following response:

HTTP/1.1 200 OK  
Transfer-Encoding: chunked  
Content-Type: application/xml; charset=utf-8  
Server: Microsoft-HTTPAPI/2.0  
Date: Tue, 01 Jul 2014 23:00:35 GMT  
  
0

See Also

Service Bus HTTP Client sample