Files
SekiPOS/MPStudyGO/main.go

144 lines
3.6 KiB
Go

package main
import (
"bytes"
"encoding/json"
"fmt"
"io"
"net/http"
"os"
"time"
"github.com/google/uuid"
"github.com/joho/godotenv"
)
// Request structures based on MP documentation
type PrintRequest struct {
Type string `json:"type"`
ExternalReference string `json:"external_reference"`
Config PrintConfig `json:"config"`
Content string `json:"content"`
}
type PrintConfig struct {
Point PointSettings `json:"point"`
}
type PointSettings struct {
TerminalID string `json:"terminal_id"`
Subtype string `json:"subtype"`
}
func main() {
err := godotenv.Load("../.env")
if err != nil {
fmt.Println("Error loading .env file")
}
// Example receipt using supported tags: {b}, {center}, {br}, {s}
receiptContent := "{center}{b}SEKIPOS VENTA{/b}{br}" +
"--------------------------------{br}" +
"{left}Producto: Choripan Premium{br}" +
"{left}Total: $5.500{br}" +
"--------------------------------{br}" +
"{center}{s}Gracias por su compra{/s}{br}"
resp, err := SendPrintAction(receiptContent)
if err != nil {
fmt.Printf("Error: %v\n", err)
return
}
fmt.Printf("Response: %s\n", resp)
}
func SendPrintAction(content string) (string, error) {
apiURL := "https://api.mercadopago.com/terminals/v1/actions"
accessToken := os.Getenv("MP_ACCESS_TOKEN")
terminalID := os.Getenv("MP_TERMINAL_ID")
payload := PrintRequest{
Type: "print", // Required
ExternalReference: fmt.Sprintf("ref_%d", time.Now().Unix()),
Config: PrintConfig{
Point: PointSettings{
TerminalID: terminalID,
Subtype: "custom", // For text with tags
},
},
Content: content, // Must be 100-4096 chars
}
jsonData, _ := json.Marshal(payload)
req, _ := http.NewRequest("POST", apiURL, bytes.NewBuffer(jsonData))
req.Header.Set("Content-Type", "application/json")
req.Header.Set("Authorization", "Bearer "+accessToken)
// Mandatory Unique UUID V4
req.Header.Set("X-Idempotency-Key", uuid.New().String())
client := &http.Client{Timeout: 10 * time.Second}
resp, err := client.Do(req)
if err != nil {
return "", err
}
defer resp.Body.Close()
body, _ := io.ReadAll(resp.Body)
if resp.StatusCode != http.StatusCreated && resp.StatusCode != http.StatusOK {
return "", fmt.Errorf("MP Error %d: %s", resp.StatusCode, string(body))
}
return string(body), nil
}
func PartialRefund(orderID string, paymentID string, amount string) (string, error) {
// Endpoint para reembolsos según la referencia de API
apiURL := fmt.Sprintf("https://api.mercadopago.com/v1/orders/%s/refund", orderID)
token := os.Getenv("MP_ACCESS_TOKEN")
payload := map[string]interface{}{
"transactions": []map[string]string{
{
"id": paymentID,
"amount": amount, // Debe ser un string sin decimales
},
},
}
body, _ := json.Marshal(payload)
req, _ := http.NewRequest("POST", apiURL, bytes.NewBuffer(body))
req.Header.Set("Authorization", "Bearer "+token)
req.Header.Set("Content-Type", "application/json")
req.Header.Set("X-Idempotency-Key", uuid.New().String())
client := &http.Client{}
resp, err := client.Do(req)
if err != nil {
return "", err
}
defer resp.Body.Close()
resBody, _ := io.ReadAll(resp.Body)
return string(resBody), nil
}
func GetOrderStatus(orderID string) (string, error) {
apiURL := fmt.Sprintf("https://api.mercadopago.com/v1/orders/%s", orderID)
token := os.Getenv("MP_ACCESS_TOKEN")
req, _ := http.NewRequest("GET", apiURL, nil)
req.Header.Set("Authorization", "Bearer "+token)
client := &http.Client{}
resp, err := client.Do(req)
if err != nil {
return "", err
}
defer resp.Body.Close()
resBody, _ := io.ReadAll(resp.Body)
return string(resBody), nil
}