I am trying to integrate Easypaisa payment into my app. I have a merchant account.
here is my code
const requestBody = 'storeId=xxxx&amount=xx&postBackURL=xxx&orderRefNum=xx';
const requestHeader = {
'Accept': 'application/json',
'Content-Type': 'application/x-www-form-urlencoded',
};
Here is react-native-webview
<WebView
source={{
uri: 'https://easypay.easypaisa.com.pk/easypay/Index.jsf',
headers: requestHeader,
body: requestBody,
method: 'POST',
}}
/>
here is an error that I'm facing
I have tried many solutions that didn't get any success and didn't find any solution or proper documentation related to Easypaisa.
I have used 3 packages for this purpose.
import AesJs from 'aes-js';
import { Buffer } from 'buffer';
import queryString, { stringify } from 'query-string';
and solved this issue
// Generating bytes encryption in AES, ECB mode with easypaisa HashKey
Step 1
const aes = new AesJs.ModeOfOperation.ecb(AesJs.utils.utf8.toBytes(HASH_KEY));
you can generate a hash key from the merchant account.
Step 2
pkcs5Pad
function pkcs5Pad(text: string, blockSize: number): string {
const pad = blockSize - (text.length % blockSize);
return text + String.fromCharCode(pad).repeat(pad);
}
convertObjectToString
function convertObjectToString(obj: any): string {
let data = '';
Object.keys(obj)
.sort()
.forEach((key) => {
data += `${key}=${obj[key]}` + '&';
});
return data.slice(0, data.length - 1);
}
Step 3
// Generating HashMapReq
const hasMapReq = Buffer.from(aes.encrypt(Buffer.from(
pkcs5Pad(convertObjectToString(requestBody), 16))))
.toString(
'base64',
);
append your hashReq into request-body and enjoy.
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.