QueueTriggerAttribute Class

Reference

Definition

Namespace:: Microsoft.Azure.WebJobs

Assembly:: Microsoft.Azure.WebJobs.Extensions.Storage.Queues.dll

Package:: Microsoft.Azure.WebJobs.Extensions.Storage.Queues v5.3.0

Package:: Microsoft.Azure.WebJobs.Extensions.Storage.Queues v5.3.0-beta.1

Source:: QueueTriggerAttribute.cs

Source:: QueueTriggerAttribute.cs

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Attribute used to bind a parameter to an Azure Queue message, causing the function to run when a message is enqueued.

[Microsoft.Azure.WebJobs.ConnectionProvider(typeof(Microsoft.Azure.WebJobs.StorageAccountAttribute))]
[Microsoft.Azure.WebJobs.Description.Binding]
[System.AttributeUsage(System.AttributeTargets.Parameter)]
public sealed class QueueTriggerAttribute : Attribute, Microsoft.Azure.WebJobs.IConnectionProvider

[<Microsoft.Azure.WebJobs.ConnectionProvider(typeof(Microsoft.Azure.WebJobs.StorageAccountAttribute))>]
[<Microsoft.Azure.WebJobs.Description.Binding>]
[<System.AttributeUsage(System.AttributeTargets.Parameter)>]
type QueueTriggerAttribute = class
    inherit Attribute
    interface IConnectionProvider

Public NotInheritable Class QueueTriggerAttribute
Inherits Attribute
Implements IConnectionProvider

Inheritance: Attribute
QueueTriggerAttribute

Attributes: Microsoft.Azure.WebJobs.ConnectionProviderAttribute Microsoft.Azure.WebJobs.Description.BindingAttribute AttributeUsageAttribute

Implements: Microsoft.Azure.WebJobs.IConnectionProvider

Remarks

The method parameter type can be one of the following:

QueueMessage
String
byte[]
BinaryData
A user-defined type (serialized as JSON)

By default messages received from the queue are expected to be Base64-encoded and are decoded before calling the function. This behavior can be changed by setting MessageEncoding. For example, to configure Azure Functions to perform no base64 encoding/decoding, specify the following in host.json.

"extensions": {
  "queues": {
    "messageEncoding": "none"
  }
}

Constructors

QueueTriggerAttribute(String)

Initializes a new instance of the QueueTriggerAttribute class.

Properties

Connection	Gets or sets the app setting name that contains the Azure Storage connection string.
QueueName	Gets the name of the queue to which to bind.

Applies to

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