Sandbox Paypal Checkout (PHP, Laravel) - php

Question

I'm trying to implement Paypal's checkout to my Laravel Api (connected to an Ionic app) and it gets stuck when in the app I press the button to checkout and it goes to Paypal (so far so good) in the login screen. I found it weird because it wouldn't let me login with my sandbox account or even my real account, the error is the same: "Some of your info isn't correct. Please try again." By opening developer tools, those are the errors I get (see screenshots). I really couldn't find where I'm making a mistake here. Maybe you can help me. Below are the screenshots and the code that makes takes the checkout to Paypal. Let me know if I should add any extra info here! Thanks a lot!
error 1: ,
investigating one of the console errors:
Route::middleware('auth:api')->post('/paypal', function (Request $request) {
$user = $request->user();
$data = $request->all();
$list_products_id = $data;
$products = [];
$total = 0;
$titles = '';
foreach($list_products_id as $key => $value) {
$product = Product::find($value);
if($product){
$products[$key] = $product;
$total += $product->price;
$titles .= $product->title." ";
}
}
if($total){
$paypal = config('app.paypal', "sandbox");
if($paypal == "sandbox"){
$userProvider = 'In my app I have the sandbox business credentials here';
$pwdProvider = 'In my app I have the sandbox business credentials here';
$signProvider = 'In my app I have the sandbox business credentials here';
$url = 'https://api-3t.sandbox.paypal.com/nvp';
$url2 = 'https://www.sandbox.paypal.com/cgi-bin/webscr?%s';
} else {
$userProvider = '';
$pwdProvider = '';
$signProvider = '';
$url = 'https://api-3t.paypal.com/nvp';
$url2 = 'https://www.paypal.com/cgi-bin/webscr?%s';
}
$data = [];
$data['USER'] = $userProvider;
$data['PWD'] = $pwdProvider;
$data['SIGNATURE'] = $signProvider;
$data['METHOD'] = 'SetExpressCheckout';
$data['VERSION'] = '108';
$data['LOCALECODE'] = 'en_US';
$data['L_PAYMENTREQUEST_0_NAME0'] = "Products Orders";
$data['L_PAYMENTREQUEST_0_DESC0'] = $titles;
$data['PAYMENTREQUEST_0_AMT'] = number_format($total, 2).'';
$data['PAYMENTREQUEST_0_CURRENCYCODE'] = 'EUR';
$data['PAYMENTREQUEST_0_PAYMENTACTION'] = 'Sale';
$data['L_PAYMENTREQUEST_0_QTY0'] = '1'; //number of the same product the user is ordering
$data['L_PAYMENTREQUEST_0_AMT0'] = number_format($total, 2).'';
$data['L_BILLINGAGREEMENTDESCRIPTION0'] = $titles;
$data['CANCELURL'] = url('/');
$data['RETURNURL'] = url('/');
// curl
$data = http_build_query($data);
$curl = curl_init();
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
$response = curl_exec($curl);
curl_close($curl);
$nvp = array();
if (preg_match_all('/(?<name>[^\=]+)\=(?<value>[^&]+)&?/', $response, $matches)) {
foreach ($matches['name'] as $offset => $name) {
$nvp[$name] = urldecode($matches['value'][$offset]);
}
}
if(isset($nvp['ACK']) && $nvp['ACK'] == "Success" ){
$query = array(
'cmd' => '_express-checkout',
'token' => $nvp['TOKEN']
);
$redirectURL = sprintf($url2, http_build_query($query));
return ['date'=>$redirectURL];
}else{
return ['status'=>'error purchasing! - 1'];
}
}
echo "total: " . $total;
return ['status'=>'error purchasing! - 2'];
});

Answer 1

so I did a password reset on my sandboxes account and it worked!