go get github.com/windback/windback-go

package main

import (
    "context"
    "fmt"
    "log"
    "os"

    windback "github.com/windback/windback-go"
)

func main() {
    client := windback.NewClient(os.Getenv("PAYBACK_SECRET_KEY")) // sk_... from dashboard settings

    ctx := context.Background()

    // Get stats
    stats, err := client.Stats.Get(ctx)
    if err != nil {
        log.Fatal(err)
    }
    fmt.Printf("Recovery rate: %.1f%%\n", stats.RecoveryRate)

    // List churn events
    events, err := client.ChurnEvents.List(ctx, &windback.ListParams{
        Status: "new",
        Limit:  10,
    })
    if err != nil {
        log.Fatal(err)
    }

    // Generate recovery emails
    variants, err := client.ChurnEvents.GenerateVariants(ctx, "event-id")

    // Send a variant
    err = client.ChurnEvents.SendVariant(ctx, "event-id", "variant-id")

    // Mark as recovered
    err = client.ChurnEvents.MarkRecovered(ctx, "event-id")
}

client := windback.NewClient(
    os.Getenv("PAYBACK_SECRET_KEY"),
    windback.WithBaseURL("https://api.windback.dev"),
    windback.WithTimeout(30 * time.Second),
)