jwilyandi19

you should need signature header. When I try to execute command, I got following errors instead. `Error: A signature header is required at D:\Storage\Project\LineBot\node_modules\node-line-bot-api\lib\clients\v2\SignatureValidator.js:25:15 at Layer.handle [as handle_request] (D:\Storage\Project\LineBot\node_modules\express\lib\router\layer.js:95:5) at...