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I am calling getProductHistoricRates() but this code returns Invalid JSON or null returned.

`$gdax = new Api('https://api-public.sandbox.gdax.com');
$date_1 = '2017-06-15T14:37:47.501Z';
$date_1Str = strtotime($date_1);
$date_2Str = $date_1Str + (60*5); // add 5 min

$date_1 = date(DATE_ISO8601, $date_1Str);
$date_2 = date(DATE_ISO8601, $date_2Str);

$paramArr = [
'start' => $date_1,
'end' => $date_2,
'granularity' => 60
];

$productId = 'ETH-BTC';
$productHistoricRates = $gdax->getProductHistoricRates($productId, $param = $paramArr
);`

I was running into issues with placing orders and other things and realized that I'm ending up with many, many open connections to GDAX -- the curl handle itself is staying open after private requests. This only seems to occur for private (requiring API auth) requests.

<?php

// Demo - requires lsof to show us our open conns from PHP

require 'vendor/autoload.php'; // gives us our mrteye\Gdax stuff

$apiConfig = (object) array(
  'key' => 'GDAX_API_KEY_HERE',
  'secret' => 'GDAX_API_SECRET_HERE',
  'pass' => 'GDAX_API_PASS_HERE',

  'api_url' => 'https://api-public.sandbox.gdax.com',
  'time_url' => 'https://api-public.sandbox.gdax.com/time'
);

use mrteye\Gdax\Api as Api;
use mrteye\Gdax\Auth as Auth;
use mrteye\Gdax\Exception as Exception;

$products = false;

$apiAuth = new Auth(
        $apiConfig->key,
        $apiConfig->secret,
        $apiConfig->pass,
        $apiConfig->time_url
);

// Get the GDAX API and start making calls.
$gdaxPrivate = new Api($apiConfig->api_url, $apiAuth);

echo "[INFO] Api has been instantiated.\n";
echo "[INFO] ". exec("lsof -i|grep php|grep ESTABLISHED|wc -l") . " open connections to GDAX.\n";

while (true) {

  // A private request.

  echo "[INFO] Executing cancelAllOrders (a _privateRequest)\n";
  $gdaxPrivate->cancelAllOrders($param = [
      'product_id' => 'BTC-USD'
  ]);
  echo "[INFO] ". exec("lsof -i|grep php|grep ESTABLISHED|wc -l") . " open connections to GDAX.\n";

  // A public request.

  echo "[INFO] Executing getProducts (a _publicRequest)\n";
  $gdaxPrivate->getProducts();
  echo "[INFO] ". exec("lsof -i|grep php|grep ESTABLISHED|wc -l") . " open connections to GDAX.\n";

}

$ php example.php
[INFO] Api has been instantiated.
[INFO] 0 open connections to GDAX.
[INFO] Executing cancelAllOrders (a _privateRequest)
[INFO] 2 open connections to GDAX.
[INFO] Executing getProducts (a _publicRequest)
[INFO] 2 open connections to GDAX.
[INFO] Executing cancelAllOrders (a _privateRequest)
[INFO] 3 open connections to GDAX.
[INFO] Executing getProducts (a _publicRequest)
[INFO] 3 open connections to GDAX.
[INFO] Executing cancelAllOrders (a _privateRequest)
[INFO] 4 open connections to GDAX.
[INFO] Executing getProducts (a _publicRequest)
[INFO] 4 open connections to GDAX.
[INFO] Executing cancelAllOrders (a _privateRequest)
[INFO] 5 open connections to GDAX.
[INFO] Executing getProducts (a _publicRequest)
[INFO] 5 open connections to GDAX.
[INFO] Executing cancelAllOrders (a _privateRequest)
[INFO] 6 open connections to GDAX.
[INFO] Executing getProducts (a _publicRequest)
[INFO] 6 open connections to GDAX.
[INFO] Executing cancelAllOrders (a _privateRequest)
[INFO] 7 open connections to GDAX.
[INFO] Executing getProducts (a _publicRequest)
[INFO] 7 open connections to GDAX.
[INFO] Executing cancelAllOrders (a _privateRequest)
[INFO] 8 open connections to GDAX.
[INFO] Executing getProducts (a _publicRequest)
[INFO] 8 open connections to GDAX.
[INFO] Executing cancelAllOrders (a _privateRequest)
[INFO] 9 open connections to GDAX.
[INFO] Executing getProducts (a _publicRequest)
[INFO] 9 open connections to GDAX.
[INFO] Executing cancelAllOrders (a _privateRequest)
[INFO] 10 open connections to GDAX.

Oddly, we are left with 2 open connections after the first private API call.

Over time, the number of open connections to GDAX increase manyfold -- I've had it hit near a thousand -- before things stop working due to having too many open connections.

testGDAX.zip
I have installed using composer as per instructions.
Then copy and pasted example #1
The very first thing I get is Exception about the GDX\Exception not found. I've attached my code. I'm sure "m just missing something obvious. Thank you for your help

C:\ProjectFiles\btcgdax\public>php testGDAX.php
PHP Fatal error: Uncaught Error: Class 'mrteye\Gdax\Exception' not found in C:\ProjectFiles\btcgdax\vendor\mrteye\gdax\src\Api.php:99
Stack trace:
#0 C:\ProjectFiles\btcgdax\vendor\mrteye\gdax\src\Api.php(58): mrteye\Gdax\Api->_call('GET', 'products', '')
#1 C:\ProjectFiles\btcgdax\vendor\mrteye\gdax\src\Api.php(656): mrteye\Gdax\Api->_publicRequest('GET', 'products')
#2 C:\ProjectFiles\btcgdax\public\testGDAX.php(20): mrteye\Gdax\Api->getProducts()
#3 {main}
thrown in C:\ProjectFiles\btcgdax\vendor\mrteye\gdax\src\Api.php on line 99

Fatal error: Uncaught Error: Class 'mrteye\Gdax\Exception' not found in C:\ProjectFiles\btcgdax\vendor\mrteye\gdax\src\Api.php:99
Stack trace:
#0 C:\ProjectFiles\btcgdax\vendor\mrteye\gdax\src\Api.php(58): mrteye\Gdax\Api->_call('GET', 'products', '')
#1 C:\ProjectFiles\btcgdax\vendor\mrteye\gdax\src\Api.php(656): mrteye\Gdax\Api->_publicRequest('GET', 'products')
#2 C:\ProjectFiles\btcgdax\public\testGDAX.php(20): mrteye\Gdax\Api->getProducts()
#3 {main}
thrown in C:\ProjectFiles\btcgdax\vendor\mrteye\gdax\src\Api.php on line 99

In your code you have throw new Exception which itself causes an error, need to change to throw new \Exception (add the slash) on all the places you use it. otherwise it is looking for an Exception class within the mrteye\Gdax namespace

`<?php
require_once DIR ."/app/config.php";

use mrteye\Gdax\Api as Api;
use mrteye\Gdax\Auth as Auth;

// Get the GDAX API and start making calls.
$gdax = new Api('https://api-public.sandbox.gdax.com');
$products = false;

try {
// Example usage of public calls.
$products = $gdax->getProducts();

} catch (\Exception $e) {
// echo $e->getMessage();
echo '

'. print_r($gdax->getError(), true) .'

if ($products) {
echo 'Products:

'. print_r($products, true) .'

output

[response_headers] => Array

  | (
  | [0] => HTTP/1.1 403 Forbidden
  | [1] => Date: Fri, 02 Feb 2018 07:18:11 GMT
  | [2] => Content-Type: text/html; charset=UTF-8
  | [3] => Transfer-Encoding: chunked
  | [4] => Connection: close
  | [5] => Set-Cookie: __cfduid=d5ad71640c2fa26b4e3a3a25245e4d5a31517555891; expires=Sat, 02-Feb-19 07:18:11 GMT; path=/; domain=.gdax.com; HttpOnly
  | [6] => CF-Chl-Bypass: 1
  | [7] => Cache-Control: max-age=2
  | [8] => Expires: Fri, 02 Feb 2018 07:18:13 GMT
  | [9] => X-Frame-Options: SAMEORIGIN
  | [10] => Strict-Transport-Security: max-age=15552000; includeSubDomains; preload
  | [11] => X-Content-Type-Options: nosniff
  | [12] => Expect-CT: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
  | [13] => Server: cloudflare
  | [14] => CF-RAY: 3e6b60001e4269e9-LHR
  | )

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Hello, sorry I have not found any other way how to contact you ;-)
Thanks you for the API, I am using it for a few days successfully. But now I need to use pagination and I have not found a proper way how to call the requests and set before/after parameters. Could you please give me some sample code for example how to get all open orders if there is more than 100 of them?
Thank you very much.

From example #1:

$productOrderBook = $gdax->getProductOrderBook('BTC-USD', $param);
    'level' => 1
]);

should be:

$productOrderBook = $gdax->getProductOrderBook('BTC-USD', $param = [
    'level' => 1
]);

I am new to this and just getting started. I am on a Mac, enabled Apache, PHP and installed MySQL. Installed composer (version 1.7-dev). Ran composer require mrteye/gdax without errors.

Added dir mrteyeGDAX (with its contents) to the working dir. Updated config.php file name and added api credentials.

Created index.php inside mrteyeGDAX dir and pasted Examples #1 code. I am getting the following errors

Fatal error: Uncaught Error: Class 'mrteye\Gdax\Api' not found in /Users/josh/Sites/bot/mrteyeGDAX/index.php:6 Stack trace: #0 {main} thrown in /Users/josh/Sites/bot/mrteyeGDAX/index.php on line 6

What am I doing wrong? Thanks