go-web-starter-kit/features/paypal/api.go

package features_paypal

import (
  "github.com/gofiber/fiber/v2"
  "github.com/plutov/paypal/v4"
  "os"
  "context"
  . "MY/webapp/common"
  config "MY/webapp/config"
  "fmt"
)

func CreatePaypal() (*paypal.Client, error) {
  return paypal.NewClient(
    config.Settings.Paypal.ClientID,
    config.Settings.Paypal.SecretID,
    config.Settings.Paypal.URL) // or paypal.APIBaseLive
}

func PostApiOrder(c *fiber.Ctx) error {
  pay, err := CreatePaypal()

  if err != nil { return IfErrNil(err, c) }

  pay.SetLog(os.Stdout)

  units := []paypal.PurchaseUnitRequest{
    {
      ReferenceID: "myinternalid1",
      Amount: &paypal.PurchaseUnitAmount{
        Currency: "USD",
        Value: "10.99",
      },
      Description: "Product description",
      Items: []paypal.Item{
        {
          Name: "Learn Go the Hard Way",
          UnitAmount: &paypal.Money{
            Currency: "USD",
            Value: "10.99",
          },
          Quantity: "1",
        },
      },
    },
  }

  source := &paypal.PaymentSource{}
  appCtx := &paypal.ApplicationContext{}
  
  order, err := pay.CreateOrder(context.TODO(), paypal.OrderIntentCapture, units, source, appCtx)

  fmt.Println("ORDER", order)

  return c.JSON(order)
}

func PostApiOrderCapture(c *fiber.Ctx) error {
  orderID := c.Params("orderID")

  fmt.Println("POST ORDER CAPTURE", orderID)
  pay, err := CreatePaypal()
  if err != nil { return IfErrNil(err, c) }

  capture, err := pay.CaptureOrder(context.TODO(), orderID, paypal.CaptureOrderRequest{})
  if err != nil { return IfErrNil(err, c) }

  fmt.Println("CAPTURE", capture)

  return c.JSON(fiber.Map{"status": "ok"})
}

func SetupApi(app *fiber.App) {
  app.Post("/api/paypal/order", PostApiOrder)
  app.Post("/api/paypal/order/:orderID/capture", PostApiOrderCapture)
}