Create your device as a SAS authentication device Insert your device ID and moduleId here. Var registry = omConnectionString(serviceConnectionString) Create an instance of the IoTHub registry Copy/paste your connection string and hub name here var Registry = require('azure-iothub').Registry Copy and paste your hub connection string and hub name. The term here has nothing to do with IoT Hub modules.Ĭreate the following. The subdirectory name node_modules uses the word module to mean 'a node library'.

Run npm install -S to install the service SDK inside the node_modules subdirectory. Inside of that directory, first run npm init -y to create an empty package.json with defaults. Your device and module use these values to identify itself when it sends device-to-cloud messages to IoT Hub. When you run this console app, it generates a unique ID and key for both device and module. For more information, see Understand the identity registry in your IoT hub. A device or module can't connect to IoT hub unless it has an entry in the identity registry. In this section, you create a Node.js app that creates a device identity and a module identity in the identity registry in your IoT hub. Create a device identity and a module identity in IoT Hub On the left-side pane of your hub, select Shared access policies.įrom the list of policies, select the registryReadWrite policy.Ĭopy the Primary connection string and save the value.įor more information about IoT Hub shared access policies and permissions, see Access control and permissions. Select the resource group where your hub is located, and then select your hub from the list of resources.

In the Azure portal, select Resource groups.

To get the IoT Hub connection string for the registryReadWrite policy, follow these steps: By default, every IoT hub is created with a shared access policy named registryReadWrite that grants this permission. Your service requires the registry write permission. In this article, you create a back-end service that adds a device in the identity registry and then adds a module to that device. Prepare your development environment describes how to install Node.js for this article on either Windows or Linux. Create one with the CLI or the Azure portal. For more information about the SDK tools available to build both device and back-end apps, see Azure IoT SDKs.

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