/home/kueuepay/www/vendor/defuse/php-encryption/docs/InstallingAndVerifying.md
Getting The Code
=================

There are two ways to use this library in your applications. You can either:

1. Use [Composer](https://getcomposer.org/), or
2. `require_once` a single `.phar` file in your application.

If you are not using either option (for example, because you're using Git submodules), you may need to write your own autoloader ([example](https://gist.github.com/paragonie-scott/949daee819bb7f19c50e5e103170b400)).

Option 1: Using Composer
-------------------------

Run this inside the directory of your composer-enabled project:

```sh
composer require defuse/php-encryption
```

Unfortunately, composer doesn't provide a way for you to verify that the code
you're getting was signed by this library's authors. If you want a more secure
option, use the `.phar` method described below.

Option 2: Including a PHAR
----------------------------

The `.phar` option lets you include this library into your project simply by
calling `require_once` on a single file. Download `defuse-crypto.phar` and
`defuse-crypto.phar.sig` from this project's
[releases](https://github.com/defuse/php-encryption/releases) page.

You should verify the integrity of the `.phar`. The `defuse-crypto.phar.sig`
contains the signature of `defuse-crypto.phar`. It is signed with Taylor
Hornby's PGP key. You can find Taylor's public key in `dist/signingkey.asc`. You
can verify the public key's fingerprint against the Taylor Hornby's [contact
page](https://defuse.ca/contact.htm) and
[twitter](https://twitter.com/DefuseSec/status/723741424253059074).

Once you have verified the signature, it is safe to use the `.phar`. Place it
somewhere in your file system, e.g. `/var/www/lib/defuse-crypto.phar`, and then
pass that path to `require_once`.

```php
<?php

    require_once('/var/www/lib/defuse-crypto.phar');

    // ... the Crypto, File, Key, and KeyProtectedByPassword classes are now
    // available ...

    // ...
```

Access Token

Get Access Token

Get access token to initiates payment transaction.

Endpoint: POST generate-token
Parameter Type Comments
client_id string Enter merchant API client/primary key
secret_id string Enter merchant API secret key
env string Enter merchant API environment
merchant_id string Enter merchant API merchant id
Just request to that endpoint with all parameter listed below:
                    
                        Request Example (guzzle)
                        

<?php
require_once('vendor/autoload.php');
$client = new \GuzzleHttp\Client();
$response = $client->request('POST', $base_url. 'v1/generate-token', [
'headers' => [
  'accept' => 'application/json',
  'content-type' => 'application/json',
 ],
'form_params' => [
  'client_id' => '$client_id',
  'secret_id' => 'secret_id',
  'env' => 'env',
  'merchant_id' => 'merchant_id',
 ],
]);
echo $response->getBody();
                    
                        
**Response: SUCCESS (200 OK)**
{
 "message": {
 "success": [
  "Successfully token is generated"
 ]
},
"data": {
 "token":"eyJpdiI6InpkczhjTjhQdVhUL2lKQ0pSUUx6aUE9P
SIsInZhbHVlIjoiVGVBTVBDTXltbjNZcEIvdEJveGpTSno3TU5NRUtn
VkhCZ1pHTFNCUnZGQ2UxMnYxN202cEE1YVRDTEFsc0ZERExoTjdtL0dTL2x
oU3QzeUJJOExiMUx5T0w1L0llUXhTUkU1cWVLWEdEbEplb0dKNXcwbTNRM0
VxdkUwYzZuNFdtNkhMQ0pRZysyNWkvdzBxSlBoSVBSOGFTekNnR2RXNHVtc
G9lMGZOTmNCcm1hR3c5Sk9KTnB4Y3ltZDl6cm90MThrR21Ca3B1azc3bXRi
Q0J6SW96UVo1elNkU1ZqeE05bTcwWGp1MEUxWlJFdnNWTmpSbnVpeW92b2U
4dXZkUGgyb1VmK0luaGdyaFlsVTZlcVpVRnZlTG1DeFF6Ykk2T2h6Z3Jzbn
IyNHpNdHowSE5JdDR0Y0pZT20zUm1XYW8iLCJtYWMiOiJlY2M4NGE1OGUzYz
kzYzk0YzljNmVmNjE0YWI0ZDIwOGI3NDQ2YWEyY2ZhNzc0NzE4ZmY1ZmYyMz
IyZmQzNDY1IiwidGFnIjoiIn0=",
},
"type": "success"
}
                    
                        
**Response: ERROR (400 FAILED)**
{
 "message": {
 "error": [
  "Invalid credentials."
 ]
},
"data": null,
"type": "error"
}