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checkout_sdk.go
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checkout_sdk.go
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package checkout
import (
"bytes"
"context"
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"github.com/checkout/checkout-sdk-go"
"github.com/checkout/checkout-sdk-go/instruments"
"github.com/checkout/checkout-sdk-go/payments"
"github.com/checkout/checkout-sdk-go/tokens"
)
type Checkout struct {
ctx context.Context
environment string
secretKey string
publicKey *string
webhookSecrets map[string]string
}
func NewCheckout(secretKey string, publicKey *string, environment string, webhookSecrets map[string]string) *Checkout {
return &Checkout{
ctx: context.Background(),
environment: environment,
secretKey: secretKey,
publicKey: publicKey,
webhookSecrets: webhookSecrets,
}
}
func (c *Checkout) RequestPayment(request *payments.Request) *payments.Response {
config, err := checkout.Create(c.secretKey, c.publicKey)
idempotencyKey := checkout.NewIdempotencyKey()
params := checkout.Params{
IdempotencyKey: &idempotencyKey,
}
if err != nil {
panic("failed creating checkout client: " + err.Error())
}
var client = payments.NewClient(*config)
response, err := client.Request(request, ¶ms)
if err != nil {
panic("checkout.com new payment request error: " + err.Error())
}
return response
}
func (c *Checkout) RequestRefunds(amount uint64, paymentID, reference string, metadata map[string]string) *payments.RefundsResponse {
config, err := checkout.Create(c.secretKey, c.publicKey)
if err != nil {
panic("failed creating checkout client: " + err.Error())
}
idempotencyKey := checkout.NewIdempotencyKey()
params := checkout.Params{
IdempotencyKey: &idempotencyKey,
}
var client = payments.NewClient(*config)
request := &payments.RefundsRequest{
Amount: amount,
Reference: reference,
Metadata: metadata,
}
response, err := client.Refunds(paymentID, request, ¶ms)
if err != nil {
panic("checkout.com refund error: " + err.Error())
}
return response
}
func (c *Checkout) CheckWebhookKey(keyCode, key string) bool {
if value, found := c.webhookSecrets[keyCode]; found {
if value == key {
return true
}
}
return false
}
func (c *Checkout) DeleteCustomerInstrument(instrumentID string) bool {
config, err := checkout.Create(c.secretKey, nil)
if err != nil {
panic("failed creating checkout client: " + err.Error())
}
client := &http.Client{}
req, _ := http.NewRequest("DELETE", *config.URI+"/instruments/"+instrumentID, nil)
req.Header.Set("Authorization", c.secretKey)
resp, _ := client.Do(req)
if resp.StatusCode == 404 {
return false
}
if resp.StatusCode != 204 {
panic(fmt.Sprintf("error calling delete instrument api checkout : %s", resp.Body))
}
return true
}
func (c *Checkout) GetCustomer(idOrEmail string) (bool, *CustomerResponse) {
config, err := checkout.Create(c.secretKey, c.publicKey)
if err != nil {
panic("failed creating checkout client: " + err.Error())
}
client := &http.Client{}
req, _ := http.NewRequest("GET", *config.URI+"/customers/"+idOrEmail, nil)
req.Header.Set("Authorization", c.secretKey)
req.Header.Set("Content-Type", "application/json")
resp, _ := client.Do(req)
if resp.StatusCode == 404 {
return false, nil
} else if resp.StatusCode == 200 {
res := &CustomerResponse{}
err := json.NewDecoder(resp.Body).Decode(res)
if err != nil {
panic(err)
}
return true, res
}
data, _ := ioutil.ReadAll(resp.Body)
panic(fmt.Sprintf("wrong status checkout get customer code: %d, body %s", resp.StatusCode, string(data)))
}
func (c *Checkout) SaveGetClient(customerData *SaveCustomerRequest) (created bool, customer *CustomerResponse) {
exists, customerRes := c.GetCustomer(customerData.Email)
if exists {
return false, customerRes
}
config, err := checkout.Create(c.secretKey, c.publicKey)
if err != nil {
panic("failed creating checkout client: " + err.Error())
}
client := &http.Client{}
jsonReq, _ := json.Marshal(customerData)
req, _ := http.NewRequest("POST", *config.URI+"/customers/", bytes.NewBuffer(jsonReq))
req.Header.Set("Authorization", c.secretKey)
req.Header.Set("Content-Type", "application/json")
resp, _ := client.Do(req)
if resp.StatusCode == 201 {
_, customerRes := c.GetCustomer(customerData.Email)
return true, customerRes
}
data, _ := ioutil.ReadAll(resp.Body)
panic(fmt.Sprintf("wrong status checkout create customer code: %d, body %s", resp.StatusCode, string(data)))
}
func (c *Checkout) CreateToken(request *tokens.Request) (string, error) {
config, err := checkout.Create(c.secretKey, c.publicKey)
if err != nil {
panic("failed creating checkout client: " + err.Error())
}
token := tokens.NewClient(*config)
resp, err := token.Request(request)
if err != nil {
return "", err
}
return resp.Created.Token, nil
}
func (c *Checkout) CreateInstrument(request *instruments.Request) (*instruments.Response, error) {
config, err := checkout.Create(c.secretKey, c.publicKey)
if err != nil {
panic("failed creating checkout client: " + err.Error())
}
client := instruments.NewClient(*config)
res, err := client.Create(request)
if err != nil {
return nil, err
}
return res, nil
}
func (c *Checkout) GetInstrument(sourceID string) (*instruments.Response, error) {
config, err := checkout.Create(c.secretKey, c.publicKey)
if err != nil {
panic("failed creating checkout client: " + err.Error())
}
client := instruments.NewClient(*config)
res, err := client.Get(sourceID)
if err != nil {
return nil, err
}
return res, nil
}
func (c *Checkout) GetPaymentDetail(paymentID string) (*payments.PaymentResponse, error) {
config, err := checkout.Create(c.secretKey, c.publicKey)
if err != nil {
return nil, err
}
var client = payments.NewClient(*config)
response, err := client.Get(paymentID)
if err != nil {
return nil, err
}
return response, nil
}