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client.go
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client.go
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package yigim
import (
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"github.com/google/uuid"
"github.com/pkg/errors"
)
type yigimClient struct {
config *Configuration
}
func NewClient(config *Configuration) YigimClient {
return &yigimClient{
config: config,
}
}
// Execute the request
func (client *yigimClient) executeRequest(req *http.Request) ([]byte, error) {
httpClient := http.DefaultClient
response, err := httpClient.Do(req)
if err != nil {
return nil, errors.Wrap(err, "Cannot execute the request")
}
defer response.Body.Close()
body, err := ioutil.ReadAll(response.Body)
if err != nil {
return nil, errors.Wrap(err, "Cannot read the body")
}
return body, nil
}
// Build the request by attaching all the nessesary parameters and headers
func (client *yigimClient) buildRequest(path string, data IEncodable) (*http.Request, error) {
req, err := http.NewRequest("GET", fmt.Sprintf("%s/%s", client.config.Address, path), nil)
if err != nil {
return nil, errors.Wrap(err, "Cannot build the request")
}
data.Encode(req, client.config)
req.Header.Add("X-Merchant", client.config.Merchant)
req.Header.Add("X-Type", "JSON")
return req, nil
}
// Create executed create action
//This command is used for initial payment registration and optionally may start card linking
//procedure. Returns URL to redirect cardholder to for entering of card information.
func (client *yigimClient) Create(paymentCreate *PaymentCreate) (*PaymentCreateResult, error) {
req, err := client.buildRequest("payment/create", paymentCreate)
if err != nil {
return nil, err
}
response, err := client.executeRequest(req)
if err != nil {
return nil, err
}
var result PaymentCreateResult
err = json.Unmarshal(response, &result)
if err != nil {
return nil, errors.Wrap(err, "Cannot unmarshal the response")
}
return &result, nil
}
// GetRef returns unique reference
func (client *yigimClient) GetRef() string {
return fmt.Sprintf("ref-%s", uuid.New().String()[0:10])
}
// Status returns the status of a transaction by a reference
func (client *yigimClient) Status(paymentStatus *PaymentStatus) (*PaymentStatusResult, error) {
req, err := client.buildRequest("payment/status", paymentStatus)
if err != nil {
return nil, err
}
response, err := client.executeRequest(req)
if err != nil {
return nil, err
}
var result PaymentStatusResult
err = json.Unmarshal(response, &result)
if err != nil {
return nil, errors.Wrap(err, "Cannot unmarshal the response")
}
return &result, nil
}
// Refund the previous payment
func (client *yigimClient) Refund(paymentRefund *PaymentRefund) (*PaymentRefundResult, error) {
req, err := client.buildRequest("payment/refund", paymentRefund)
if err != nil {
return nil, err
}
response, err := client.executeRequest(req)
if err != nil {
return nil, err
}
var result PaymentRefundResult
err = json.Unmarshal(response, &result)
if err != nil {
return nil, errors.Wrap(err, "Cannot unmarshal the response")
}
return &result, nil
}
// Execute a payment using a saved token
func (client *yigimClient) Execute(paymentExecute *PaymentExecute) (*PaymentExecuteResult, error) {
req, err := client.buildRequest("payment/execute", paymentExecute)
if err != nil {
return nil, err
}
response, err := client.executeRequest(req)
if err != nil {
return nil, err
}
var result PaymentExecuteResult
err = json.Unmarshal(response, &result)
if err != nil {
return nil, errors.Wrap(err, "Cannot unmarshal the response")
}
return &result, nil
}