Files
flatrender/services/payment/internal/config/config.go
T
soroush.asadi ec51e87d2d feat(payment): standalone ZarinPal broker on pay.flatrender.ir
A generic multi-client payment gateway so FlatRender, meezi.ir and
bargevasat.ir can all pay through ZarinPal's single verified callback
domain (pay.flatrender.ir).

New Go service services/payment (clones the notification skeleton +
vendored deps):
- migration 31_payment_broker.sql — `payment` schema: client_apps,
  transactions, webhook_deliveries.
- ZarinPal v4 client ported from the proven identity PaymentService
  (request.json -> StartPay -> verify.json; codes 100/101).
- client API: POST /v1/pay/request + /v1/pay/inquiry, authed by
  X-Api-Key + HMAC body signature; GET /callback/zarinpal (the single
  verified endpoint) verifies, then 302s the user back to the site's
  return_url (signed) and fires a signed, retried webhook.
- per-client ZarinPal merchant override (default = shared merchant);
  amount stored canonically in Rial, unit to ZarinPal env-configurable.
- admin API /v1/admin/* (FlatRender admin JWT): client-app CRUD +
  key issue/rotate + transactions list.

Deploy wiring: payment-svc in docker-compose.v2.yml (host port 1607),
pay.flatrender.ir server block in mirror-nginx conf, ENV_FILE +
README updates (cert SAN + manual migration note).

Admin UI: src/components/admin/PaymentsAdmin.tsx (client apps with
one-time key reveal + rotate, transactions table) + /admin/payments
page + nav link + fa/en strings; pay-admin proxy route to payment-svc.

Docs/SDK: deploy/PAYMENTS.md (integration contract) + deploy/sdk/flatpay.js
(zero-dep Node client + webhook verifier) for meezi/any site.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-15 23:59:54 +03:30

55 lines
1.8 KiB
Go

package config
import (
"os"
"strings"
)
// Config is the payment-broker runtime configuration, all from env.
type Config struct {
DatabaseURL string
JWTSecret string // verifies FlatRender admin JWTs for /v1/admin/* endpoints
Port string
// PublicBaseURL is the broker's externally reachable base (e.g. https://pay.flatrender.ir).
// ZarinPal callbacks and the user redirect target are built from it.
PublicBaseURL string
// ── ZarinPal (shared default merchant) ──────────────────────────────────
// A client_app may override MerchantId/Sandbox; otherwise these defaults apply.
ZarinPalMerchantID string
ZarinPalSandbox bool
// AmountUnit is the unit ZarinPal expects in the amount field: "rial" (official
// v4) or "toman". The broker always stores Rial canonically and converts here.
ZarinPalAmountUnit string
}
func getEnv(key, fallback string) string {
if v := os.Getenv(key); v != "" {
return v
}
return fallback
}
func Load() Config {
base := strings.TrimRight(getEnv("PUBLIC_BASE_URL", "http://localhost:8080"), "/")
unit := strings.ToLower(getEnv("ZARINPAL_AMOUNT_UNIT", "rial"))
if unit != "toman" {
unit = "rial"
}
return Config{
DatabaseURL: getEnv("DATABASE_URL", "postgres://postgres:postgres@localhost:5432/flatrender?search_path=payment,public"),
JWTSecret: getEnv("JWT_SECRET", "change-me"),
Port: getEnv("PORT", "8080"),
PublicBaseURL: base,
ZarinPalMerchantID: getEnv("ZARINPAL_MERCHANT_ID", ""),
ZarinPalSandbox: getEnv("ZARINPAL_SANDBOX", "true") == "true",
ZarinPalAmountUnit: unit,
}
}
// CallbackURL is the single ZarinPal-verified callback endpoint on this broker.
func (c Config) CallbackURL() string {
return c.PublicBaseURL + "/callback/zarinpal"
}