Are you new to reading directions as well? 
You didnāt format your posted code, as requested in the directions you deleted when posting your topicā¦ as well as listed in the Welcome Topicā¦ and repeated all throughout this forum 
Also, we do not really teach programming hereā¦ but you can search this forum for other NodeJS examples that might give you some insight how to implement Blynk in that language.
For exampleā¦