fix: trim strings

index.d.ts

@@ -1,5 +1,7 @@
 import type { FormData } from 'formdata-node';
 
+export declare function trim<T = string | null | undefined>(value: T): T
+
 export declare type TransactionStatus =
   | "APPROVED"
   | "DECLINED"

index.js

@@ -3,6 +3,11 @@ const { createHmac } = require('node:crypto');
 const axios = require('axios').default;
 const { FormData } = require("formdata-node");
 
+exports.trim = function trim(value) {
+  if (typeof value === 'string') return value.trim()
+  return value
+}
+
 class PayWayClient {
 
   constructor(base_url, merchant_id, api_key, client_factory) {
@@ -81,18 +86,18 @@ class PayWayClient {
     if (typeof return_url === 'string') return_url = base64(return_url);
     if (typeof return_deeplink === 'string') return_deeplink = base64(return_deeplink);
     if (typeof return_deeplink === 'object' && return_deeplink != null) return_deeplink = base64(JSON.stringify(return_deeplink));
-    
+
     const response = await this._client.post(
       "/api/payment-gateway/v1/payments/purchase",
       // order matters here
       this.create_payload({
         tran_id,
         amount,
         pwt,
-        firstname,
-        lastname,
-        email,
-        phone,
+        firstname: trim(firstname),
+        lastname: trim(lastname),
+        email: trim(email),
+        phone: trim(phone),
         payment_option,
         return_url,
         continue_success_url,

index.test.mjs

@@ -1,5 +1,14 @@
 import test from 'ava'
-import { PayWayClient } from './index.js'
+import { PayWayClient, trim } from './index.js'
+
+test("should trim", t => {
+  t.is(trim("abc "), "abc")
+  t.is(trim(" abc "), "abc")
+  t.is(trim(), undefined)
+  t.is(trim(null), null)
+  t.is(trim(1), 1)
+  t.is(trim(NaN), NaN)
+})
 
 test("should hash", t => {
   const client = new PayWayClient("http://example.com", "1", "1");