trace-router

Traffic visualisation tool built with golang in the back and react in the front, backed by a postgres database.

Backend

By using Google’s PCAP library, I could sniff packets off the wire as they were being sent and received by the host. I used this library to take a sample of these packets and fire off a traceroute to the destination IP on a seperate thread. Once this comes back, we insert the hops into the DB.

Frontend

When a user comes to the frontend, the hops are pulled back from the DB. Geolocation data from a publicly available API is stored alongside the hop data in the DB, allowing the front end to display the location of each server that a packet has gone through. Depending on the latency/number of times a hop has been taken, the appearance of the link/pin changes.

func main() {
  // I might be a comment
  os.Getenv("BALLS")
}