Create a new Config

Create a new Config from the given environment variables

It first gets the environment variables from the .env file in the current directory.

Variables

• LONGPORT_APP_KEY - App key
• LONGPORT_APP_SECRET - App secret
• LONGPORT_ACCESS_TOKEN - Access token
• LONGPORT_HTTP_URL - HTTP endpoint url
• LONGPORT_QUOTE_WS_URL - Quote websocket endpoint url
• LONGPORT_TRADE_WS_URL - Trade websocket endpoint url
• LONGPORT_ENABLE_OVERNIGHT - Enable overnight quote, true or false (Default: false)

Gets a new access_token

expired_at - The expiration time of the access token, defaults to 90 days.