Nodejs хелпаните

https://github.com/kiyasov/loadInventorySteam/blob/master/app.js
есть скрипт nodejs

запускается все нормально но при запросе
вылетает с ошибкой

undefined:1



SyntaxError: Unexpected end of JSON input
at Object.parse (native)
at Request.err [as _callback] (/home/app.js:49:26)
at Request.self.callback (/home/node_modules/request/request.js:188:22)
at emitTwo (events.js:106:13)
at Request.emit (events.js:191:7)
at Request.<anonymous> (/home/node_modules/request/request.js:1171:10)
at emitOne (events.js:96:13)
at Request.emit (events.js:188:7)
at IncomingMessage.<anonymous> (/home/node_modules/request/request.js:1091:12)
at IncomingMessage.g (events.js:292:16)

Код

undefined:1







SyntaxError: Unexpected end of JSON input

    at Object.parse (native)

    at Request.err [as _callback] (/home/app.js:49:26)

    at Request.self.callback (/home/node_modules/request/request.js:188:22)

    at emitTwo (events.js:106:13)

    at Request.emit (events.js:191:7)

    at Request.<anonymous> (/home/node_modules/request/request.js:1171:10)

    at emitOne (events.js:96:13)

    at Request.emit (events.js:188:7)

    at IncomingMessage.<anonymous> (/home/node_modules/request/request.js:1091:12)

    at IncomingMessage.g (events.js:292:16)

помогите пожалуйста буду благодарен