Message Class

Reference

Definition

Namespace:: Microsoft.Azure.Devices

Assembly:: Microsoft.Azure.Devices.dll

Package:: Microsoft.Azure.Devices v1.38.1

Package:: Microsoft.Azure.Devices v2.0.0-preview002

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.

The data structure represent the message that is used for interacting with IoT hub.

public sealed class Message : IDisposable

public sealed class Message

type Message = class
    interface IDisposable

type Message = class

Public NotInheritable Class Message
Implements IDisposable

Public NotInheritable Class Message

Inheritance: Object
Message

Implements: IDisposable

Constructors

Message()	Default constructor with no body data.
Message(Byte[])	Creates a telemetry message with the specified payload.
Message(Stream)	Constructor which uses the argument stream as the body stream.

Properties

Ack	Used in cloud-to-device messages to request IoT hub to generate feedback messages as a result of the consumption of the message by the device.
ContentEncoding	Used to specify the content encoding type of the message.
ContentType	Used to specify the content type of the message.
CorrelationId	A string property in a response message that typically contains the MessageId of the request, in request-reply patterns.
CreatedOnUtc	Custom date property set by the originator of the message.
CreationTimeUtc	Custom date property set by the originator of the message.
ExpiresOnUtc	[Optional] The time when this message is considered expired.
ExpiryTimeUtc	[Optional] The time when this message is considered expired.
HasPayload	Indicates if the message has a payload.
LockToken	[Required] LockToken of the received message.
MessageId	[Required for two way requests] Used to correlate two-way communication. Format: A case-sensitive string ( up to 128 char long) of ASCII 7-bit alphanumeric chars {'-', ':', '/', '', '.', '+', '%', '_', '#', '*', '?', '!', '(', ')', ',', '=', '@', ';', '$', '''}. Non-alphanumeric characters are from URN RFC.
MessageSchema	Used to specify the schema of the message content.
Payload	The message payload.
Properties	Gets the dictionary of user properties which are set when user send the data.
To	[Required] Destination of the message.
UserId	[Required in feedback messages] Used to specify the origin of messages generated by device hub. Possible value: “{hub name}/”

Methods

Clone()	Makes a clone of the current event data instance.
Dispose()	Dispose the current event data instance
GetBodyStream()	Return the body stream of the current event data instance
GetBytes()	This methods return the body stream as a byte array

Applies to

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