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