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