Migrate from LaunchDarkly

// shipd.config.ts
import { defineFlags } from "shipdit/config";

export default defineFlags({
  "new-checkout": {
    type: "boolean",
    default: false,
    description: "Migrated from LaunchDarkly",
  },
  "search-variant": {
    type: "variant",
    variants: ["control", "semantic", "hybrid"] as const,
    default: "control",
  },
});

// Entries inside config.ShipdConfig (import github.com/alasti-company/useshipd.com/sdks/go/config).
"new-checkout": {Type: "boolean", Default: false,
    Description: "Migrated from LaunchDarkly"},
"search-variant": {Type: "variant", Default: "control",
    Variants: []string{"control", "semantic", "hybrid"}},

// src/lib/flags.ts
import { shipd } from "./shipd";
import { ldClient } from "./launchdarkly";

export async function newCheckoutEnabled(user: { id: string; plan: string }) {
  const fromShipd = shipd.isEnabled("new-checkout", {
    userId: user.id,
    attributes: { plan: user.plan },
  });
  const fromLd = await ldClient.variation(
    "new-checkout",
    { kind: "user", key: user.id, plan: user.plan },
    false,
  );

  if (fromShipd !== fromLd) {
    console.warn("flag mismatch", { key: "new-checkout", userId: user.id, fromShipd, fromLd });
  }
  return fromLd; // switch to fromShipd once mismatches stop
}

// flags.go
package flags

import (
	shipd "github.com/alasti-company/useshipd.com/sdks/go"
	"log"
)

// Pass a function that calls your existing LaunchDarkly client.
func newCheckoutEnabled(client *shipd.Client, userID, plan string, fromLaunchDarkly func() (bool, error)) (bool, error) {
	fromShipd := client.IsEnabled("new-checkout", shipd.EvaluationContext{
		UserID: userID, Attributes: map[string]any{"plan": plan},
	})
	fromLD, err := fromLaunchDarkly()
	if err != nil {
		return false, err
	}
	if fromShipd != fromLD {
		log.Printf("flag mismatch: key=new-checkout user=%s shipd=%v ld=%v", userID, fromShipd, fromLD)
	}
	return fromLD, nil // Switch to fromShipd once differences are acceptable.
}