Code examples

Code Examples on Github

Here you will find multiple code samples that will help you interact with our API endpoints. You will find more examples in our Github repository. Feel free to contribute to our samples in our repository!

Github repository

PHP Oauth Sample

Here's a PHP code sample that shows how to perform a basic Oauth2 request.

<?php

$api_url = 'https://www.cryptohopper.com';
$redirect_url = ''; // Enter your redirect url. If you leave this empty, the default setting from your app is used.

$app_key = 'ENTER_YOUR_APP_KEY';
$app_secret = 'ENTER_YOUR_SECRET';
$method = 'access_tokens';
$state = '123'; // optional


$data = '';
if(is_array($_GET) && !empty($_GET)){
	$data = json_encode($_GET, JSON_PRETTY_PRINT);
}

if(!empty($data)){
	echo '<h3>Endpoint: <strong>'.$method.'</strong></h3>';
	echo '<h3>State: <strong>'.$state.'</strong></h3><br><hr>';
	echo '<h3>Result</h3><br><br><pre>';
	echo $data; 
	echo '</pre><br><br>';
}else{
	$path = '/oauth2/'.$method.'?app_key='.$app_key.'&state='.urlencode($state).'&redirect_uri='.urlencode($redirect_url);
	$signature = hash_hmac('sha512', $path, $app_secret);
	header('Location: '.$api_url.$path.'&signature='.$signature);
}// if data

PHP API Request Sample

This is a PHP code sample that shows how to perform a basic API request with an access_token and access_secret.

<?php
$access_token = 'ENTER_YOUR_ACCESS_TOKEN';
$operation = 'hopper';
$method = 'GET';
$data_string = '{}';  

$path = '/v1/'.$operation;

$headers = array(                                                                          
	'access_token: '.$access_token                                                                    
);                                                                                 

$ch = curl_init($api_url.$path); 

if($method == 'POST'){
	$headers[] = 'Content-Type: application/json';
	$headers[] = 'Content-Length: ' . strlen($data_string);
	curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");                                                                   
	curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);                                                                 
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);                                                                     
	curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);         
}elseif($method == 'GET'){                                                                                             
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);                                                                     
	curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);   

}elseif($method == 'PATCH'){
	$headers[] = 'Content-Type: application/json';
	$headers[] = 'Content-Length: ' . strlen($data_string);
	curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "PATCH");                                                                   
	curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);                                                                 
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);                                                                     
	curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
}elseif($method == 'DELETE'){
	$headers[] = 'Content-Type: application/json';
	$headers[] = 'Content-Length: ' . strlen($data_string);
	curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "DELETE"); 
	curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);                                                                 
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);                                                                     
	curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
}

$result = curl_exec($ch); 
$httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);                                                                                           
$error = curl_error($ch); 

$result_json = json_decode($result, true);
if(is_array($result_json)){
	$result_json = json_encode($result_json, JSON_PRETTY_PRINT);
}

echo '<h3>Endpoint: <strong>'.$operation.'</strong></h3>';
echo '<h3>Method: <strong>'.$method.'</strong></h3>';
echo '<h3>Status code: <strong>'.$httpcode.'</strong></h3><br><hr>';
echo '<h3>Result</h3><br><br><pre>';
if(!empty($result_json)){
	echo $result_json;
}else{
	echo $result; 
}
echo '</pre><br><br>';
if(!empty($error)){
	echo '<h3>Error</h3><br><br>';
	echo $error; 
}
curl_close($ch);

PHP Webhook Sample

This is a PHP code sample that shows how to receive and validate a webhook request.

<?php

$app_secret = 'ENTER_YOUR_APP_SECRET';
$verification_code = 'MY_VERIFICATION_CODE';

$requestBody = file_get_contents('php://input');
$headers = getallheaders();
$headers = array_change_key_case($headers, CASE_UPPER);
$json = json_decode($requestBody, true);

$signature = hash_hmac('sha512', $requestBody, $app_secret);

if($signature == $headers['X-HUB-SIGNATURE']){
	//valid webhook request
	if($json['type'] == 'validate'){
		// validate webhook
		echo $verification_code;
	}elseif($json['type'] == 'messages'){
		// receive messages
		print_r($json['messages'], true);
	}else{
		// unkown type
		echo 'Unkown webhook message type.';
	}
}else{
	//invalid signature
	echo 'Invalid signature.';
}
?>