Check PayPal payment data from Transaction ID

list.txt

1122334455667788A
AABBCCDDEEFFGGHH1

main.go

package main

import (
	"errors"
	"fmt"
	"os"
	"time"

	"github.com/evalphobia/go-paypal-classic/client/transaction"
	"github.com/evalphobia/go-paypal-classic/config"
)

func main() {
	conf, err := getConfig()
	if err != nil {
		fmt.Printf("[ERROR] %s\n", err.Error())
		return
	}

	conf.SetAsProduction()
	cli := transaction.New(conf)

	txID, err := getTransactionID()
	if err != nil {
		fmt.Printf("[ERROR] %s\n", err.Error())
		return
	}

	api := transaction.TransactionSearch{
		StartDate:     time.Date(2013, time.January, 1, 1, 0, 0, 0, time.UTC),
		TransactionID: txID,
	}
	resp, err := api.Do(cli)
	switch {
	case err != nil:
		fmt.Printf("[ERROR] %s\n", err.Error())
		return
	case len(resp.Items) == 0:
		fmt.Printf("[API ERROR] [%+v]\n", resp.BaseResponse)
		return
	}

	for i, v := range resp.Items {
		if v.TransactionID != txID {
			continue
		}
		fmt.Printf("[#%d] Date:%s, Type:%s, Email:%s, Status:%s\n", i, v.Timestamp.Format("2006-01-02"), v.Type, v.Email, v.Status)
		return
	}
	fmt.Printf("[ERROR] Cannot find by the tx id: [%s]\n", txID)
}

func getTransactionID() (string, error) {
	id := os.Getenv("PAYPAL_TRANSACTION_ID")
	if id == "" {
		return "", errors.New("PAYPAL_TRANSACTION_ID is empty")
	}
	return id, nil
}

func getConfig() (*config.Config, error) {
	u := os.Getenv("PAYPAL_API_USER")
	if u == "" {
		return nil, errors.New("PAYPAL_API_USER is empty")
	}
	p := os.Getenv("PAYPAL_API_PASSWORD")
	if p == "" {
		return nil, errors.New("PAYPAL_API_PASSWORD is empty")
	}
	s := os.Getenv("PAYPAL_API_SIGNATURE")
	if s == "" {
		return nil, errors.New("PAYPAL_API_SIGNATURE is empty")
	}

	return &config.Config{
		User:      u,
		Pass:      p,
		Signature: s,
		Version:   123,
	}, nil
}

run.sh

#!/bin/bash

# export PAYPAL_API_USER=...
# export PAYPAL_API_PASSWORD=...
# export PAYPAL_API_SIGNATURE=...

go build . 
chmod +x ./paypal_search

for line in `cat list.txt`; do
	PAYPAL_TRANSACTION_ID=$line ./paypal_search
done