Environments

The exchanges, their hosts and which one to start with are listed on Environments. In the SDK, pick one with environment, or with region and env (as options, as STX_REGION and STX_ENV, or in a credentials profile):

Exchange	environment	region	env
STX US demo	Environments.USDemo	"us"	"demo"
STX Ontario demo	Environments.OntarioDemo	"ontario"	"demo"
STX Ontario	Environments.OntarioProduction	"ontario"	"production"

import { Environments, STX } from "@stxapp/stx-typescript";

const client = new STX({ environment: Environments.USDemo, keyId, privateKey });
// same exchange:
const same = new STX({ region: "us", env: "demo", keyId, privateKey });

An API key works on one exchange only, so keep one credentials profile per exchange and switch with profile.

To reach any other host, such as a local server, pass host: "http://localhost:4000" (or set STX_HOST). The URL’s scheme is kept for both HTTP and the socket.