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Int 391 make api example for the merchant callbacks #20

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f8c263e
Adding merchant callback php version
NastyaGos Jul 12, 2021
493ffbd
Deleting js decision
NastyaGos Jul 12, 2021
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39 changes: 0 additions & 39 deletions api-examples/callback/css/style.css
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107 changes: 0 additions & 107 deletions api-examples/callback/index.html
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211 changes: 211 additions & 0 deletions api-examples/callback/index.php
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Original file line number Diff line number Diff line change
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<?php
if ($_GET['code'] == 'true') {
$file = __FILE__;
header('Content-Description: File Transfer');
header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename="' . basename($file) . '"');
header('Expires: 0');
header('Cache-Control: must-revalidate');
header('Pragma: public');
header('Content-Length: ' . filesize($file));
readfile($file);
exit;
}

?>


<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"
integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">

<body>
<div class="container">
<br/>
<a href="./index.php?code=true">Code sample</a>
<br/>
<br/>
<form>
<div class="form-group">
<label for="clientId">Client ID:</label>
<input type="text" class="form-control" id="clientId" name="clientId" value="<?= $_GET['clientId'] ?>">
</div>
<div class="form-group">
<label for="clientSecret">Client Secret:</label>
<input type="text" class="form-control" id="clientSecret" name="clientSecret"
value="<?= $_GET['clientSecret'] ?>">
</div>
<div class="form-group">
<label for="action">Action</label>
<select class="form-control" id="action" name="action">
<option>Choose option</option>
<option>Create a new callback address</option>
<option>List all callback addresses</option>
<option>Find a callback address by id</option>
<option>Update a callback address</option>
</select>
</br>

<div class="form-group" id="currencyId_block" style="display: none;">
<label for="currencyId">Currency ID:</label>
<input type="text" class="form-control" id="currencyId" name="currencyId">
</div>

<div class="form-group" id="label_block" style="display: none;">
<label for="label">Label:</label>
<input type="text" class="form-control" id="label" name="label">
</div>

<div class="form-group" id="webhookUrl_block" style="display: none;">
<label for="webhookUrl">Webhook url:</label>
<input type="text" class="form-control" id="webhookUrl" name="webhookUrl">
</div>

<div class="form-group" id = "idForFinding_block" style="display: none;">
<label for="idForFinding">Id for finding:</label>
<input type="text" class="form-control" id="idForFinding" name="idForFinding">
</div>

</div>
<script>
var insertEl = document.getElementById("insert");
const selectElement = document.getElementById("action");
selectElement.addEventListener("change", (event) => {
document.getElementById('currencyId_block').style.display = "none";
document.getElementById('label_block').style.display = "none";
document.getElementById('webhookUrl_block').style.display = "none";
document.getElementById('idForFinding_block').style.display = "none";
if (selectElement.value == 'Create a new callback address'){
document.getElementById('currencyId_block').style.display = "block";
document.getElementById('label_block').style.display = "block";
document.getElementById('webhookUrl_block').style.display = "block";
}
else if (selectElement.value == 'Find a callback address by id'){
document.getElementById('idForFinding_block').style.display = "block";
}
else if ( selectElement.value == 'Update a callback address'){
document.getElementById('label_block').style.display = "block";
document.getElementById('webhookUrl_block').style.display = "block";
document.getElementById('idForFinding_block').style.display = "block";
}
});
</script>

<button type="submit" class="btn btn-default">Submit</button>
</form>
</div>
<?php
$params = null;
$date = new \Datetime();

if (!empty($_GET['action'])) {

$apiUrl = 'https://api.coinpayments.net/api/v1/merchant/callbacks';

switch ($_GET['action']) {

case 'Create a new callback address':
$method = 'POST';
$params = [
"currencyId" => $_GET['currencyId'],
"label" => $_GET['label'],
"webhook" => array(
"webhookUrl" => $_GET['webhookUrl'],
)
];
break;
case 'Find a callback address by id':
$method = 'GET';
$apiUrl .= '/' . $_GET['idForFinding'];
break;
case 'List all callback addresses':
$method = 'GET';
break;
case 'Update a callback address':
$method = 'PUT';
$params = [
"label" => $_GET['label'],
"webhook" => array(
"webhookUrl" => $_GET['webhookUrl'],
)
];
$apiUrl .= '/' . $_GET['idForFinding'];
break;


}

$response = sendRequest($method, $apiUrl, $_GET['clientId'], $_GET['clientSecret'], $date, $params);

echo "<pre>";
echo sprintf("%s", $response);
echo "</pre>";

}

?>
</body>
<?php


function sendRequest($method, $apiUrl, $clientId, $clientSecret, $date, $params=NULL)
{

if ($params) {
$params = json_encode($params);
}


$curl = curl_init();
$signature = signature($method, $apiUrl, $clientId, $date, $clientSecret, $params);

$headers = [
'Content-Type: application/json',
'X-CoinPayments-Client: ' . $clientId,
'X-CoinPayments-Timestamp: ' . $date->format('c'),
'X-CoinPayments-Signature: ' . $signature,
];
$options = [
CURLOPT_RETURNTRANSFER => true,
CURLOPT_HEADER => true,
CURLOPT_SSL_VERIFYHOST => 0,
CURLOPT_SSL_VERIFYPEER => 0,
CURLOPT_URL => $apiUrl,
CURLOPT_HTTPHEADER => $headers,
];

if ($method == 'POST') {
$options[CURLOPT_POST] = true;
$options[CURLOPT_POSTFIELDS] = $params;
}
else if ($method == 'PUT'){
$options[CURLOPT_CUSTOMREQUEST] = 'PUT';
$options[CURLOPT_POSTFIELDS] = $params;
}


curl_setopt_array($curl, $options);

$response = curl_exec($curl);
curl_close($curl);

return $response;
}

function signature($method, $apiUrl, $clientId, $date, $clientSecret, $params)
{

$signatureString = implode('', [
chr(239),
chr(187),
chr(191),
$method,
$apiUrl,
$clientId,
$date->format('c'),
$params
]);

return base64_encode(hash_hmac('sha256', $signatureString, $clientSecret, true));
}

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