azure-iot-hub

问题 I am working on an IoT analytics solution which consumes Avro formatted messages fired at an Azure IoT Hub and (hopefully) uses Stream Analytics to store messages in Data Lake and blob storage. A key requirement is the Avro containers must appear exactly the same in storage as they did when presented to the IoT Hub, for the benefit of downstream consumers. I am running into a limitation in Stream Analytics with granular control over individual file creation. When setting up a new output

问题 I have an IoTHub with a route that points to an EventHub which triggers a Functions. I'm having problem getting the DeviceId and other IoT Hub properties from the event object without adding those explicitly to the payload. If I set the input type to a string (or a custom type): public static void Run(string iotMessage, TraceWriter log) { log.Info($"C# Event Hub trigger function processed a message: {iotMessage}"); } I only get the payload without any other IoT Hub properties like DeviceId ,

问题 I have an IoTHub with a route that points to an EventHub which triggers a Functions. I'm having problem getting the DeviceId and other IoT Hub properties from the event object without adding those explicitly to the payload. If I set the input type to a string (or a custom type): public static void Run(string iotMessage, TraceWriter log) { log.Info($"C# Event Hub trigger function processed a message: {iotMessage}"); } I only get the payload without any other IoT Hub properties like DeviceId ,

问题 Is it possible to send messages to azure to any custom topic via mqtt. All example that I've found so far work with standard topics 'devices/' + hubName + '/messages/events/' 'devices/' + hubName + '/messages/devicebound/#' Btw, I tried to send/subscribe on the topic/subscription above with MQTT.fx application and never received messages, although the connection was successful. 回答1: Did you have a look on these ?? Azure IoT Hub - Send message (C2D) to one device on 2 topics instead of

问题 I am trying to use Azure Iot hub REST API to create device by following links Create a new device identity Control access to IoT Hub And my http data is like { "status":"connected", "authentication":{ "symmetricKey":{ "primaryKey":"key in shared access policies", "secondaryKey":"key in shared access policies"} }, "statusReason":"reason", "deviceId":"test123" } My header is like ["Content-Type": "application/json", "Authorization": "SharedAccessSignature sig=(key in shared access policies

问题 Goal: Send messages to a group of Azure IoT Hub Devices that are connected via MQTT WebSocket. Initial Idea: Have a group of IoT Hub Devices (group X) subscribe to messages with topic X. Problem: On the Communicate with your IoT hub using the MQTT protocol docs, I don't see a way to subscribe a device to additional topics. I only see examples of a subscription to a device specific endpoint devices/{device_id}/messages/devicebound/# . The page goes on to say "IoT Hub is not a general purpose

问题 I am new to Cloud Technology and I want to send the data from Android Device to IoT Hub using Android Studio, I am able to send data using device to IoT Hub by referring to the https://docs.microsoft.com i.e; "Send device-to-cloud messages to IoT Hub" I am able to get the device ID of a particular device from Android Studio and I want it to be displayed in IoT Hub using Android Studio, Kindly help me or refer some site for specific Android Device to IOT Hub Connectivity and Data transfer 回答1:

问题 I set the event retention time to 1 day (the lowest value and think it's default) in my Azure IoT Hub. I can see from usage donut diagram that each day it resets to 0% usage and 0 message. However, when I start my Stream Analytics with custom start time (say 2 mths ago), why would I still be able to pick up older events/messages? Anyone notice this behavior too? Thanks! 来源： https://stackoverflow.com/questions/45590000/azure-iot-hub-event-endpoint-retention-time-not-working

问题 Azure has implemented MQTT protocol in its IoTHub so I'm trying to use mosquitto to send messages from my pc. I'm creating azure devices using Device Explorer. In the beginning I generated SAS token from there, but it hasn't the "&skn=" part, so I tried to generate a new SAS using compatible event hub from visual studio. After that i tried to use mosquitto broker to send an MQTT message to my IoTHub using parameters in the CONNECT packet as explained here: https://azure.microsoft.com/en-us

问题 There are publisher and consumer custom modules that are running on an Edge IoT device. The publisher module keeps producing messages at constant rate no matter consumer module processes it or not. The consumer module POSTs the message to external service and given that there is no Internet connection, the consumer module would like to requeue the messsage so that is not lost and tried again. I do not prefer to write an infinite loop to keep retrying; also if the module is restarted the