What is @aws-sdk/client-iot-data-plane?
@aws-sdk/client-iot-data-plane is an AWS SDK for JavaScript package that allows developers to interact with the AWS IoT Data Plane. This package provides methods to publish messages to IoT topics, retrieve the current state of a device shadow, update a device shadow, and delete a device shadow.
What are @aws-sdk/client-iot-data-plane's main functionalities?
Publish to IoT Topic
This feature allows you to publish a message to a specified IoT topic. The code sample demonstrates how to create a client, construct a PublishCommand with a topic and payload, and send the command.
{"import":"import { IoTDataPlaneClient, PublishCommand } from '@aws-sdk/client-iot-data-plane';","client":"const client = new IoTDataPlaneClient({ region: 'us-west-2' });","command":"const command = new PublishCommand({ topic: 'my/topic', payload: Buffer.from('Hello, world!') });","send":"await client.send(command);"}
Get Device Shadow
This feature allows you to retrieve the current state of a device shadow. The code sample demonstrates how to create a client, construct a GetThingShadowCommand with a device name, send the command, and log the response.
{"import":"import { IoTDataPlaneClient, GetThingShadowCommand } from '@aws-sdk/client-iot-data-plane';","client":"const client = new IoTDataPlaneClient({ region: 'us-west-2' });","command":"const command = new GetThingShadowCommand({ thingName: 'MyDevice' });","send":"const response = await client.send(command);","response":"console.log(new TextDecoder('utf-8').decode(response.payload));"}
Update Device Shadow
This feature allows you to update the state of a device shadow. The code sample demonstrates how to create a client, construct an UpdateThingShadowCommand with a device name and payload, send the command, and log the response.
{"import":"import { IoTDataPlaneClient, UpdateThingShadowCommand } from '@aws-sdk/client-iot-data-plane';","client":"const client = new IoTDataPlaneClient({ region: 'us-west-2' });","command":"const command = new UpdateThingShadowCommand({ thingName: 'MyDevice', payload: Buffer.from(JSON.stringify({ state: { desired: { key: 'value' } } })) });","send":"const response = await client.send(command);","response":"console.log(new TextDecoder('utf-8').decode(response.payload));"}
Delete Device Shadow
This feature allows you to delete a device shadow. The code sample demonstrates how to create a client, construct a DeleteThingShadowCommand with a device name, send the command, and log the response.
{"import":"import { IoTDataPlaneClient, DeleteThingShadowCommand } from '@aws-sdk/client-iot-data-plane';","client":"const client = new IoTDataPlaneClient({ region: 'us-west-2' });","command":"const command = new DeleteThingShadowCommand({ thingName: 'MyDevice' });","send":"const response = await client.send(command);","response":"console.log(new TextDecoder('utf-8').decode(response.payload));"}
Other packages similar to @aws-sdk/client-iot-data-plane
mqtt
The 'mqtt' package is a client library for the MQTT protocol, which is commonly used for IoT communication. It allows you to connect to an MQTT broker, publish messages to topics, and subscribe to topics. Unlike @aws-sdk/client-iot-data-plane, it does not provide direct integration with AWS IoT services but can be used to communicate with any MQTT broker.
aws-iot-device-sdk
The 'aws-iot-device-sdk' package is an AWS SDK for JavaScript that provides a client for AWS IoT. It allows you to connect to the AWS IoT platform, publish and subscribe to MQTT topics, and interact with device shadows. It offers similar functionalities to @aws-sdk/client-iot-data-plane but is more focused on device-side operations.
azure-iot-device
The 'azure-iot-device' package is a client library for Microsoft Azure IoT Hub. It allows you to connect devices to Azure IoT Hub, send telemetry data, and receive cloud-to-device messages. While it provides similar IoT functionalities, it is specific to the Azure cloud platform, unlike @aws-sdk/client-iot-data-plane which is specific to AWS.
@aws-sdk/client-iot-data-plane
Description
AWS SDK for JavaScript IoTDataPlane Client for Node.js, Browser and React Native.
IoT data
IoT data enables secure, bi-directional communication between Internet-connected things (such as sensors,
actuators, embedded devices, or smart appliances) and the Amazon Web Services cloud. It implements a broker for applications and
things to publish messages over HTTP (Publish) and retrieve, update, and delete shadows. A shadow is a
persistent representation of your things and their state in the Amazon Web Services cloud.
Find the endpoint address for actions in IoT data by running this CLI command:
aws iot describe-endpoint --endpoint-type iot:Data-ATS
The service name used by Amazon Web ServicesSignature Version 4
to sign requests is: iotdevicegateway.
Installing
To install this package, simply type add or install @aws-sdk/client-iot-data-plane
using your favorite package manager:
npm install @aws-sdk/client-iot-data-plane
yarn add @aws-sdk/client-iot-data-plane
pnpm add @aws-sdk/client-iot-data-plane
Getting Started
Import
The AWS SDK is modulized by clients and commands.
To send a request, you only need to import the IoTDataPlaneClient
and
the commands you need, for example ListRetainedMessagesCommand
:
const { IoTDataPlaneClient, ListRetainedMessagesCommand } = require("@aws-sdk/client-iot-data-plane");
import { IoTDataPlaneClient, ListRetainedMessagesCommand } from "@aws-sdk/client-iot-data-plane";
Usage
To send a request, you:
- Initiate client with configuration (e.g. credentials, region).
- Initiate command with input parameters.
- Call
send
operation on client with command object as input. - If you are using a custom http handler, you may call
destroy()
to close open connections.
const client = new IoTDataPlaneClient({ region: "REGION" });
const params = {
};
const command = new ListRetainedMessagesCommand(params);
Async/await
We recommend using await
operator to wait for the promise returned by send operation as follows:
try {
const data = await client.send(command);
} catch (error) {
} finally {
}
Async-await is clean, concise, intuitive, easy to debug and has better error handling
as compared to using Promise chains or callbacks.
Promises
You can also use Promise chaining
to execute send operation.
client.send(command).then(
(data) => {
},
(error) => {
}
);
Promises can also be called using .catch()
and .finally()
as follows:
client
.send(command)
.then((data) => {
})
.catch((error) => {
})
.finally(() => {
});
Callbacks
We do not recommend using callbacks because of callback hell,
but they are supported by the send operation.
client.send(command, (err, data) => {
});
v2 compatible style
The client can also send requests using v2 compatible style.
However, it results in a bigger bundle size and may be dropped in next major version. More details in the blog post
on modular packages in AWS SDK for JavaScript
import * as AWS from "@aws-sdk/client-iot-data-plane";
const client = new AWS.IoTDataPlane({ region: "REGION" });
try {
const data = await client.listRetainedMessages(params);
} catch (error) {
}
client
.listRetainedMessages(params)
.then((data) => {
})
.catch((error) => {
});
client.listRetainedMessages(params, (err, data) => {
});
Troubleshooting
When the service returns an exception, the error will include the exception information,
as well as response metadata (e.g. request id).
try {
const data = await client.send(command);
} catch (error) {
const { requestId, cfId, extendedRequestId } = error.$metadata;
console.log({ requestId, cfId, extendedRequestId });
}
Getting Help
Please use these community resources for getting help.
We use the GitHub issues for tracking bugs and feature requests, but have limited bandwidth to address them.
To test your universal JavaScript code in Node.js, browser and react-native environments,
visit our code samples repo.
Contributing
This client code is generated automatically. Any modifications will be overwritten the next time the @aws-sdk/client-iot-data-plane
package is updated.
To contribute to client you can check our generate clients scripts.
License
This SDK is distributed under the
Apache License, Version 2.0,
see LICENSE for more information.
Client Commands (Operations List)
DeleteThingShadow
Command API Reference / Input / Output
GetRetainedMessage
Command API Reference / Input / Output
GetThingShadow
Command API Reference / Input / Output
ListNamedShadowsForThing
Command API Reference / Input / Output
ListRetainedMessages
Command API Reference / Input / Output
Publish
Command API Reference / Input / Output
UpdateThingShadow
Command API Reference / Input / Output