Go SDK - net/http & fasthttp

net/http and fasthttp. Requires Go 1.21+.

Install

go get github.com/kohicorp/kohi-go

Set your env vars:

KOHI_PROJECT_KEY=pk_your_project_key
KOHI_SECRET_KEY=your_secret_key

net/http

Wrap your mux with kohi.NetHTTPMiddleware(monitor) as the outermost layer.

import kohi "github.com/kohicorp/kohi-go"

monitor, err := kohi.New(kohi.Config{
  ProjectKey: os.Getenv("KOHI_PROJECT_KEY"),
  SecretKey:  os.Getenv("KOHI_SECRET_KEY"),
})
if err != nil { log.Fatal(err) }
defer monitor.Close()

mux := http.NewServeMux()
// add your routes...
http.ListenAndServe(":8080", kohi.NetHTTPMiddleware(monitor)(mux))

fasthttp

Wrap your handler with kohi.FastHTTPMiddleware(monitor) as the outermost layer.

import kohi "github.com/kohicorp/kohi-go"

monitor, err := kohi.New(kohi.Config{
  ProjectKey: os.Getenv("KOHI_PROJECT_KEY"),
  SecretKey:  os.Getenv("KOHI_SECRET_KEY"),
})
if err != nil { log.Fatal(err) }
defer monitor.Close()

handler := kohi.FastHTTPMiddleware(monitor)(yourHandler)
fasthttp.ListenAndServe(":8080", handler)

Error tracking

Panics and 5xx responses are captured automatically by both middlewares. Panics are re-raised after capture so your recovery middleware still works.

To capture errors manually:

if err := doSomething(); err != nil {
  monitor.CaptureException(err)
}

CaptureException(err error) records the error type, message, and a full stack trace. Both middlewares also auto-capture 5xx responses.

See configuration reference for all available options, security & privacy for redacted fields, or troubleshooting if something isn’t working.