Add IoT Hub System Properties (#161)

* Add IoT Hub System Properties

* update CHANGELOG and version

Co-authored-by: Joel Hendrix <jhendrix@microsoft.com>

changelog.md

@@ -1,5 +1,8 @@
 # Change Log
 
+## `v3.2.0`
+- add IoT Hub system properties
+
 ## `v3.1.2`
 - fix errors in message handling being ignored [#155](https://github.com/Azure/azure-event-hubs-go/issues/155)
 

event.go

@@ -28,8 +28,8 @@ import (
 	"strings"
 	"time"
 
-	"github.com/mitchellh/mapstructure"
 	"github.com/Azure/go-amqp"
+	"github.com/mitchellh/mapstructure"
 
 	"github.com/Azure/azure-event-hubs-go/v3/persist"
 )
@@ -59,6 +59,16 @@ type (
 		Offset         *int64     `mapstructure:"x-opt-offset"`
 		PartitionID    *int16     `mapstructure:"x-opt-partition-id"` // This value will always be nil. For information related to the event's partition refer to the PartitionKey field in this type
 		PartitionKey   *string    `mapstructure:"x-opt-partition-key"`
+		// Nil for messages other than from Azure IoT Hub. deviceId of the device that sent the message.
+		IoTHubDeviceConnectionID *string `mapstructure:"iothub-connection-device-id"`
+		// Nil for messages other than from Azure IoT Hub. Used to distinguish devices with the same deviceId, when they have been deleted and re-created.
+		IoTHubAuthGenerationID *string `mapstructure:"iothub-connection-auth-generation-id"`
+		// Nil for messages other than from Azure IoT Hub. Contains information about the authentication method used to authenticate the device sending the message.
+		IoTHubConnectionAuthMethod *string `mapstructure:"iothub-connection-auth-method"`
+		// Nil for messages other than from Azure IoT Hub. moduleId of the device that sent the message.
+		IoTHubConnectionModuleID *string `mapstructure:"iothub-connection-module-id"`
+		// Nil for messages other than from Azure IoT Hub. The time the Device-to-Cloud message was received by IoT Hub.
+		IoTHubEnqueuedTime *time.Time `mapstructure:"iothub-enqueuedtime"`
 	}
 
 	mapStructureTag struct {

version.go

@@ -2,5 +2,5 @@ package eventhub
 
 const (
 	// Version is the semantic version number
-	Version = "3.1.2"
+	Version = "3.2.0"
 )