Azure iotHub client library for JavaScript - version 6.3.0
This package contains an isomorphic SDK (runs both in Node.js and in browsers) for Azure iotHub client.
Use this API to manage the IoT hubs in your Azure subscription.
Source code | Package (NPM) | API reference documentation | Samples
- LTS versions of Node.js
- Latest versions of Safari, Chrome, Edge and Firefox.
See our support policy for more details.
Install the Azure iotHub client library for JavaScript with npm
:
npm install @azure/arm-iothub
To create a client object to access the Azure iotHub API, you will need the endpoint
of your Azure iotHub resource and a credential
. The Azure iotHub client can use Azure Active Directory credentials to authenticate.
You can find the endpoint for your Azure iotHub resource in the Azure Portal.
You can authenticate with Azure Active Directory using a credential from the @azure/identity library or an existing AAD Token.
To use the DefaultAzureCredential provider shown below, or other credential providers provided with the Azure SDK, please install the @azure/identity
package:
npm install @azure/identity
You will also need to register a new AAD application and grant access to Azure iotHub by assigning the suitable role to your service principal (note: roles such as "Owner"
will not grant the necessary permissions).
Set the values of the client ID, tenant ID, and client secret of the AAD application as environment variables: AZURE_CLIENT_ID
, AZURE_TENANT_ID
, AZURE_CLIENT_SECRET
.
For more information about how to create an Azure AD Application check out this guide.
const { IotHubClient } = require("@azure/arm-iothub");
const { DefaultAzureCredential } = require("@azure/identity");
// For client-side applications running in the browser, use InteractiveBrowserCredential instead of DefaultAzureCredential. See https://aka.ms/azsdk/js/identity/examples for more details.
const subscriptionId = "00000000-0000-0000-0000-000000000000";
const client = new IotHubClient(new DefaultAzureCredential(), subscriptionId);
// For client-side applications running in the browser, use this code instead:
// const credential = new InteractiveBrowserCredential({
// tenantId: "<YOUR_TENANT_ID>",
// clientId: "<YOUR_CLIENT_ID>"
// });
// const client = new IotHubClient(credential, subscriptionId);
To use this client library in the browser, first you need to use a bundler. For details on how to do this, please refer to our bundling documentation.
IotHubClient
is the primary interface for developers using the Azure iotHub client library. Explore the methods on this client object to understand the different features of the Azure iotHub service that you can access.
Enabling logging may help uncover useful information about failures. In order to see a log of HTTP requests and responses, set the AZURE_LOG_LEVEL
environment variable to info
. Alternatively, logging can be enabled at runtime by calling setLogLevel
in the @azure/logger
:
const { setLogLevel } = require("@azure/logger");
setLogLevel("info");
For more detailed instructions on how to enable logs, you can look at the @azure/logger package docs.
Please take a look at the samples directory for detailed examples on how to use this library.
If you'd like to contribute to this library, please read the contributing guide to learn more about how to build and test the code.
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