go get github.com/fact0-ai/fact0/sdk/go

package main

import (
    "context"
    "log"
    "os"

    fact0 "github.com/fact0-ai/fact0/sdk/go"
)

func main() {
    client := fact0.NewClient(fact0.Config{
        APIKey: os.Getenv("FACT0_API_KEY"),
        // BaseURL defaults to https://api.fact0.io; set for local dev only.
    })

    err := client.Audit.Log(context.Background(), fact0.AuditEventInput{
        Actor:    fact0.Actor{ID: "svc-1", Type: "system"},
        Action:   "config.update",
        Resource: fact0.Resource{ID: "cfg_1", Type: "config"},
        Outcome:  "success",
    })
    if err != nil {
        log.Fatal(err)
    }
}