Hello first of all I appreciate any help! 
[Arduino Cloud API 401 Issue - Pastebin.com]
What is the project ? :
I am building a NodeJS API to interface with other API's. I am currently working on an endpoint to call Arduinos Cloud IOT API endpoints. I followed the documentation for JavaScript.
What is the problem ? :
I was able to use my ClientID and Secret ( stored as env variables ) from Arduino's intergrations section to obtain a valid response. I got a 200 status and received a token. I extracted the token as described in the documentation from Arduino and stored it in the client instance as described. However, when calling the API via the ThingsV2Api or DevicesV2Api I am getting an error. The error is a 401 that still says my application is "unauthorized" even though I'm almost 100% sure I have a valid token and headers set.
Where is the code?:
I will be posting the code on pastebin as well as on here. I will also be posting all output I have gotten that does not expose my secret. I have also tired not using the API and making the calls myself via Fetch() I got the same 401 response.
app.get('/v1/Arduino', (req, res) => {
async function getToken() {
let options = {
method: 'POST',
body: 'grant_type=client_credentials&client_id=' + process.env.ARDUINO_CLIENT_ID + '&client_secret=' + process.env.ARDUINO_SECRET_TOKEN + '&audience=' + 'https://api2.arduino.cc/iot',
headers: { 'content-type': 'application/x-www-form-urlencoded' },
};
try {
const response = await fetch(ArduinoUrl, options);
//console.log("\n Response from POST : ");
//console.log( response);
//console.log("\n Response Status: " + response.status);
if (!response.ok) {
const message = `An error has occured: ${response.status}`;
throw new Error(message);
}
else {
//response.json() is a method on the Response object that lets you extract a JSON object from the response
const tokenPackage = await response.json();
const token = (tokenPackage['access_token']);
//console.log("\n Package: " + tokenPackage);
//console.log(tokenPackage);
//console.log("\n Token is : " + token);
return token;
}
}
catch (error) {
console.error("Failed getting an access token: " + error);
}
}
async function useToken() {
try {
const client = IotApi.ApiClient.instance;
const oauth2 = client.authentications['oauth2'];
oauth2.access_token = await getToken();
//const token = await getToken();
//console.log("\n After waiting for token in useToken() : " , oauth2.access_token);
/* let options2 = {
method: 'GET',
headers: {
'Authorization': `Bearer ${token}`,
'Content-Type': 'application/json'
}
};
try {
const IotTestUrl = "https://api2.arduino.cc/iot/v2/things?across_user_ids=true";
url: 'https://api2.arduino.cc/iot/v2/devices',
const response = await fetch(IotTestUrl, options2);
console.log("\n Response from GET : " + response);
console.log("\n Response Status: " + response.status);
if (!response.ok) {
const message = `An error has occured: ${response.status}`;
console.log(response);
throw new Error(message);
}
else {
//response.json() is a method on the Response object that lets you extract a JSON object from the response
const data = await response.json();
console.log("\n Data: " + data);
return data;
}
}
catch (error) {
console.error("Failed getting an access token: " + error);
}*/
let websiteControllerApi = new IotApi.ThingsV2Api(client);
//console.log("Client object: ", client);
//console.log("Webcontroller object: ", websiteControllerApi.apiClient.authentications);
websiteControllerApi.thingsV2List(true).then( (things) =>{
//console.log("Webcontroller object: ", websiteControllerApi.apiClient.authentications);
console.log( "\n Returning things : " , things);
},(error)=>{
//console.log("Error Webcontroller object: ", websiteControllerApi.apiClient.authentications);
console.log( "\n Error returning things : " , error);
});
} catch (error) {
console.log("oauth error:" , error);
}
}
/* useToken().catch(error => {
console.log(" useToken() error" , error);
}); */
useToken();
/* useToken().then(data => {
//res.status(200).send(data);
}) */ })
ERROR MESSAGE
UPDATE !!!
So I got the endpoint to work when calling it via my own fetch() request. It turns out it wasn't working for that specific URL I was trying to call. I got it to work with this updated code. However I'm still stumped as to why the API instance won't work.
try {
const IotTestUrl = "https://api2.arduino.cc/iot/v2/devices";
//url: 'https://api2.arduino.cc/iot/v2/devices',
const response = await fetch(IotTestUrl, options2);
console.log("\n Response from GET : " , response);
console.log("\n Response Status: " + response.status);
if (!response.ok) {
const message = `\n An error has occured: ${response.status}`;
//console.log(response);
throw new Error(message);
}
else {
//response.json() is a method on the Response object that lets you extract a JSON object from the response
const data = await response.json();
console.log("\n Data: ", data);
//return data;
}
}
catch (error) {
console.error("\n Failed GET request: ", error);
}