Using the access token from the API to request thing properties.

Software IoT Cloud
1

I am currently creating an app using the MIT app inventor which needs to get data from the android cloud using its API [Documentation] . I have successfully obtained an access token (or auth token as they use in the documentation) but then when I try to make a request using this access token (say for a thing property), I get a 401 response meaning unauthorisation.

I was using the auth key by making a get request using:

"https://api2.arduino.cc/iot/v2/things/{thingid}/properties?access_token={the access token I had}"

I am trying to get the 200 response code indicating an okay request.

This is my first time using API requests so any help would be much appreciated.
Many thanks,
Harry

2

Hi Harryac5217! You're welcome :slight_smile: I don't know the MIT app inventor, but I can try to help you with Arduino IoT Cloud API. If you have rightly generated a Bearer token using your Client ID and Secret ID [see Doc], for listing the properties of a thing you need to launch this cURL request:

curl --request GET \
  --url https://api2.arduino.cc/iot/v2/things/{YOUR_THING_ID}/properties \
  --header 'Authorization: Bearer YOUR_TOKEN'

You need to pass the token in a header field. Please, keep me update if this command works or not.

3

That is absolutely awesome! It has worked a treat, thank you very much!

4

I have come across another problem. I am trying to use devicesV2UpdateProperties api but I am confused in the format to use in the body of the put method. The documentation uses name, hex and value but I am not sure how exactly they specify the change to the property's last value (especially as they describe hex then use a non-hex value).

Again, any help is much appreciated!

5

Hi :slight_smile: I'm not sure I have rightly understood: what do you want to do? What is your main goal? If you want to update a property value, so changing the board behavior (e.g. blinking the LED of a connected board using IoT Cloud API), you need to use propertiesV2Publish

curl --request PUT \
  --url 'https://api2.arduino.cc/iot/v2/things/{YOUR_THING_ID}/properties/{YOUR_PROPERTY_ID}/publish' \
  --header 'content-type: application/json' \
  --header 'Authorization: Bearer MY_TOKEN' \
  -d '{"value": "YOUR_VALUE"}'

If your value is a number, you can also remove the double quotes (so the API payload becomes -d '{"value":NUMBER}' ). Please, keep me update if this command works or not.

6

Another cracking reply. It has worked a treat again, thank you very much for your help. Yes I was just trying to change a property's value, and this was the correct way of doing it.