https://www.losant.com/blog/use-losant-to-simulate-iot-data

locations.js

const data = [
  {"location":"39.108314,-84.50959","isMoving":"1", "bearing":"SW","refrigeratorTemp":"35","freezerTemp":"2”},
  {"location":"39.107442,-84.50956","isMoving":"1", "bearing":"SSE","refrigeratorTemp":"38","freezerTemp":"5”},
  {"location":"39.106,-84.509303","isMoving":"1", "bearing":"SSE","refrigeratorTemp":"36","freezerTemp":"1},
  {"location":"39.105279,-84.508983","isMoving":"1", "bearing":"SSE","refrigeratorTemp":"35","freezerTemp":"-7”},
  {"location":"39.104119,-84.508712","isMoving":"1", "bearing":"SSE","refrigeratorTemp":"40","freezerTemp":"-9”},
.
.
.
.
  {"location":"39.107812,-84.509727","isMoving":"1", "bearing":"NNW","refrigeratorTemp":"49","freezerTemp":"0"},
  {"location":"39.108314,-84.50959","isMoving":"0", "bearing":"HQ","refrigeratorTemp":"49","freezerTemp":"2"}
]
 
const i = payload.dataIndex
payload.simState = data[i]
payload.newIndex = i < data.length - 1 ? i + 1 : 0