Name		Name	Last commit message	Last commit date
parent directory ..
typescript_sample		typescript_sample
configuration_sample.js		configuration_sample.js
create_device_with_cert.js		create_device_with_cert.js
device_method.js		device_method.js
dmpatterns_fwupdate_service.js		dmpatterns_fwupdate_service.js
dmpatterns_reboot_service.js		dmpatterns_reboot_service.js
edge_deployment_sample.js		edge_deployment_sample.js
job_query.js		job_query.js
module_method.js		module_method.js
module_sample.js		module_sample.js
module_twin.js		module_twin.js
package.json		package.json
readme.md		readme.md
receive_file_notifications.js		receive_file_notifications.js
registry_addUpdateRemoveDevicesSample.js		registry_addUpdateRemoveDevicesSample.js
registry_bulk_sample.js		registry_bulk_sample.js
registry_sample.js		registry_sample.js
schedule_job.js		schedule_job.js
send_c2d_message.js		send_c2d_message.js
twin.js		twin.js
twin_query.js		twin_query.js

readme.md

Samples for the Azure IoT service SDK for Node.js

This folder contains simple samples showing how to use the various features of the Microsoft Azure IoT Hub service from a device running C code.

Registry
- registry_sample.js: Manage the device ID registry of IoT Hub.
- registry_bulk_sample.js: Create a set of device IDs in the device ID registry of IoT Hub in bulk.
- create_device_with_cert.js: Create a new device ID using an X-509 certificate.
Messaging
- send_c2d_message.js : Send C2D messages to a device through IoT Hub.
Device services samples (Device Twins, Methods, and Device Management) (See device management patterns for instructions on running the device management patterns samples):
- twin.js: Interact with the Device Twins from a back-end app.
- twin_query.js: Interact with the Device Twins using queries from a back-end app.
- device_method.js: Invoke a C2D Direct Method on a device through IoT Hub.
- dmpatterns_reboot_service.js: Initiate a C2D method to reboot a device and view progress through the twin reported properties.
- dmpatterns_fwupdate_service.js: Implement the service side of the firmware update DM pattern.
- job_query.js: Use the jobs query feature of the service SDK.
- schedule_job.js: Schedule device management jobs.
Uploading blob to Azure:
- receive_file_notifications.js: Track the progress of the file "upload to blob" by devices.

In order to run the device samples you will first need the following prerequisites:

Node.js v0.10 or above on your target device. (Check out Nodejs.org for more info)
Create an Azure IoT Hub instance

Get the following files from the current folder:

package.json
sample_file.js (where sample_file.js is one of the files listed above and available in this folder)

Place the files in the folder of your choice on the target machine/device then go through the following steps:

Locate the following code in the file:

var connectionString = '[IoT Connection String]';

Replace [IoT Connection String] with the connection string for the access policy you want to use (learn more about access policies here). Save the changes.
From a shell or Node.js command prompt, navigate to the folder where you placed the sample files. Run the sample application using the following commands:
```
npm install
node sample_file.js
```

To run the Device Management samples, follow our DM patterns documentation.

If you'd like to see how to "convert" this samples to promises instead of using callbacks, please refer to this page of the wiki!