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## Getting Started
### Install the handler
We first need to serve the probing HTTP handler.
```go
http.HandleFunc("/health", probing.NewHandler())
err := http.ListenAndServe(":12345", nil)
if err != nil {
log.Fatal("ListenAndServe: ", err)
}
```
### Start to probe
Now we can start to probe the endpoint.
``` go
id := "example"
probingInterval = 5 * time.Second
url := "http://example.com:12345/health"
p.AddHTTP(id, probingInterval, url)
time.Sleep(13 * time.Second)
status, err := p.Status(id)
fmt.Printf("Total Probing: %d, Total Loss: %d, Estimated RTT: %v, Estimated Clock Difference: %v\n",
status.Total(), status.Loss(), status.SRTT(), status.ClockDiff())
// Total Probing: 2, Total Loss: 0, Estimated RTT: 320.771µs, Estimated Clock Difference: -35.869µs
```
### TODOs:
- TCP probing
- UDP probing
- Gossip based probing
- More accurate RTT estimation
- More accurate Clock difference estimation
- Use a clock interface rather than the real clock
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