mirror of
https://github.com/andwati/telecom-platform.git
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nutcas3
cb1d7171e0
- Add PaymentController struct with paymentService/db dependencies and NewPaymentController constructor - Add SetupRoutes with /payments endpoints (POST /top-up, POST/DELETE/GET /payment-methods, GET /transactions/:id, POST /transactions/:id/refund) and /webhooks/stripe endpoint - Add ProcessTopUp handler with amount/paymentMethodId validation, subscriberID authentication, and PaymentService.
104 lines
2.8 KiB
Go
104 lines
2.8 KiB
Go
package payment
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import (
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"context"
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"crypto/hmac"
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"crypto/sha256"
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"encoding/hex"
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"encoding/json"
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"fmt"
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"io"
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"net/http"
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"strings"
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)
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// makeStripeRequest issues an authenticated HTTP request to the Stripe API and
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// decodes the JSON response (or returns a structured Stripe error).
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func (s *StripeGateway) makeStripeRequest(ctx context.Context, method, path string, data any) (any, error) {
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url := "https://api.stripe.com" + path
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var body io.Reader
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if data != nil {
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jsonData, err := json.Marshal(data)
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if err != nil {
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return nil, fmt.Errorf("failed to marshal request data: %w", err)
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}
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body = strings.NewReader(string(jsonData))
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}
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req, err := http.NewRequestWithContext(ctx, method, url, body)
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if err != nil {
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return nil, fmt.Errorf("failed to create request: %w", err)
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}
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req.Header.Set("Authorization", "Bearer "+s.apiKey)
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req.Header.Set("Content-Type", "application/json")
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req.Header.Set("Stripe-Version", "2023-10-16")
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resp, err := s.client.Do(req)
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if err != nil {
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return nil, fmt.Errorf("failed to make request: %w", err)
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}
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defer resp.Body.Close()
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respBody, err := io.ReadAll(resp.Body)
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if err != nil {
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return nil, fmt.Errorf("failed to read response: %w", err)
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}
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if resp.StatusCode >= 400 {
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var errorResp map[string]any
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if err := json.Unmarshal(respBody, &errorResp); err == nil {
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if errorMsg, ok := errorResp["error"].(map[string]any); ok {
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if message, ok := errorMsg["message"].(string); ok {
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return nil, fmt.Errorf("stripe error: %s", message)
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}
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}
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}
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return nil, fmt.Errorf("stripe error: %s", string(respBody))
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}
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var result any
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if err := json.Unmarshal(respBody, &result); err != nil {
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return nil, fmt.Errorf("failed to unmarshal response: %w", err)
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}
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return result, nil
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}
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// mapStripeStatus converts a Stripe-specific status into a PaymentStatusType.
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func (s *StripeGateway) mapStripeStatus(status string) PaymentStatusType {
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switch status {
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case "requires_payment_method", "requires_confirmation", "requires_action":
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return PaymentStatusPending
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case "processing":
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return PaymentStatusProcessing
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case "succeeded":
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return PaymentStatusCompleted
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case "canceled":
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return PaymentStatusCancelled
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default:
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return PaymentStatusFailed
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}
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}
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// mapPaymentMethodType converts a PaymentMethodType to Stripe's string identifier.
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func (s *StripeGateway) mapPaymentMethodType(pmt PaymentMethodType) string {
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switch pmt {
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case PaymentMethodTypeCreditCard:
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return "card"
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case PaymentMethodTypeBankAccount:
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return "bank_account"
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default:
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return "card"
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}
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}
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// computeHMACSHA256 returns the hex-encoded HMAC-SHA256 for timestamped payloads.
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func (s *StripeGateway) computeHMACSHA256(timestamp, payload, secret string) string {
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data := timestamp + "." + payload
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h := hmac.New(sha256.New, []byte(secret))
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h.Write([]byte(data))
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return hex.EncodeToString(h.Sum(nil))
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}
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