103 lines
2.4 KiB
Go
103 lines
2.4 KiB
Go
package veli
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import (
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"bytes"
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"context"
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"crypto/hmac"
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"crypto/sha512"
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"encoding/base64"
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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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"sort"
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"strings"
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"time"
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"github.com/SamuelTariku/FortuneBet-Backend/internal/config"
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"github.com/SamuelTariku/FortuneBet-Backend/internal/services/wallet"
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)
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type Client struct {
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http *http.Client
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BaseURL string
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OperatorID string
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SecretKey string
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BrandID string
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walletSvc *wallet.Service
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}
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func NewClient(cfg *config.Config, walletSvc *wallet.Service) *Client {
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return &Client{
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http: &http.Client{Timeout: 10 * time.Second},
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BaseURL: cfg.VeliGames.BaseURL,
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OperatorID: cfg.VeliGames.OperatorID,
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SecretKey: cfg.VeliGames.SecretKey,
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BrandID: cfg.VeliGames.BrandID,
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walletSvc: walletSvc,
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}
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}
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// Signature generator
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func (c *Client) generateSignature(params map[string]string) (string, error) {
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keys := make([]string, 0, len(params))
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for k := range params {
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keys = append(keys, k)
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}
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sort.Strings(keys)
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var b strings.Builder
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for i, k := range keys {
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if i > 0 {
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b.WriteString(";")
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}
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b.WriteString(fmt.Sprintf("%s:%s", k, params[k]))
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}
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fmt.Println("String being signed:", b.String())
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fmt.Println("Using secret key:", c.SecretKey)
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h := hmac.New(sha512.New, []byte(c.SecretKey))
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h.Write([]byte(b.String()))
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hash := h.Sum(nil)
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signature := base64.StdEncoding.EncodeToString(hash)
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fmt.Println("Generated signature:", signature)
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return fmt.Sprintf("%s:%s", c.OperatorID, signature), nil
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// return fmt.Sprintf("%s:%s", c.OperatorID, base64.StdEncoding.EncodeToString(h.Sum(nil))), nil
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}
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// POST helper
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func (c *Client) post(ctx context.Context, path string, body any, sigParams map[string]string, result any) error {
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data, _ := json.Marshal(body)
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sig, err := c.generateSignature(sigParams)
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if err != nil {
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return err
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}
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req, _ := http.NewRequestWithContext(ctx, "POST", c.BaseURL+path, bytes.NewReader(data))
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req.Header.Set("Content-Type", "application/json")
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req.Header.Set("signature", sig)
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res, err := c.http.Do(req)
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if err != nil {
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return err
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}
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defer res.Body.Close()
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fmt.Println("Request URL:", c.BaseURL+path)
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fmt.Println("Request Headers:")
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fmt.Println(" Content-Type: application/json")
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fmt.Println(" signature:", sig)
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fmt.Println("Request Body:", string(data))
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b, _ := io.ReadAll(res.Body)
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if res.StatusCode >= 400 {
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return fmt.Errorf("error: %s", b)
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}
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if result != nil {
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return json.Unmarshal(b, result)
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}
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return nil
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}
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