Why am I getting this error? UnknownEndpoint: Inaccessible host: `devicefarm.us-east-1.amazonaws.com'

I'm trying to ListProjects in AWS Device Farm.

Here's my code:

const AWS = require('aws-sdk');

AWS.config.update({ region:'us-east-1' });
const credentials = new AWS.SharedIniFileCredentials({ profile: '***' });
AWS.config.credentials = credentials;
    
const devicefarm = new AWS.DeviceFarm();
    
async function run() {
  let projects = await devicefarm.listProjects().promise();
  console.log(projects);
}
    
run();

I'm getting this error:

UnknownEndpoint: Inaccessible host: devicefarm.us-east-1.amazonaws.com'. This service may not be available in the `us-east-1' region.

According to http://docs.amazonaws.cn/en_us/general/latest/gr/rande.html, Device Farm is only available in us-west-2?

Changing AWS.config.update({ region:'us-east-1' }); to AWS.config.update({ region:'us-west-2' }); worked:

Working code:

const AWS = require('aws-sdk');
AWS.config.update({ region:'us-west-2' });
var credentials = new AWS.SharedIniFileCredentials({ profile: '***' });
AWS.config.credentials = credentials;

var devicefarm = new AWS.DeviceFarm();

async function run() {
    let projects = await devicefarm.listProjects().promise();
    console.log(projects);
}

run();