Thanks for your reply.
i'm trying to send dummy data from my Raspberry pi to Thingworx platform.
i'm using NodeRed to implement and deploy the project on my Raspberry pi kit and then send the data to ThingWorx.
to send the data to Thingworx from my kit, there is an API called RestThing. this API used as an interface between the remote thing and thingworx.
but after configuring that API with my Key generated on thingworx. it didn't worked properly.