Sunday, 2 April 2017

Custom logger in magento 2 | FirePhp | Console log

In my previous post I have explained how to use logger in Magento 2. This post details using FirePHP logging in Magento 2.

This awesome logging will output the Log data on your Browser console. I have tested on Chrome & Firefox. In this post I will be referencing Chrome.

Step 1:
Install Extension for Chrome.
You need to install two extensions, one is regular logging and Other is for logging during Ajax requests.

Step 2:
Now we need to add our codes to ignore the regular logging to files and output the logs on our browser console.
Creating Logger instance using DI is explained in previous post. Please go though if you haven't yet.
Magento 2 includes FirePHP by default. We just need to call it for logging.

After creating the $this->_logger Object. use below code.

$this->_logger->pushHandler(new \Monolog\Handler\FirePHPHandler());
$this->_logger->addDebug('Debug log');

There are multiple types for logging.


NOTE: If you want to log an array(), you need to pass it as a second argument which is optional.

$this->_logger->addDebug('Debug array', $arrayVar);

Example output

Friday, 31 March 2017

Magento 2 cannot login on frontend

After installing Sample data on localhost, I was not able to login with the dummy user login.
Am using xampp on windows 7, and working on Chrome browser.

Recently I found I cannot add any products to cart and found a solution for it.

The same solution applies here. This issue is due to form key mismatch. As I suggested in previous post, this is recommended only for testing environment i.e only on your localhost.

Quick Fix.

Go to vendor/magento/module-customer/Controller/Account/LoginPost.php execute() method.
Comment out the first if condition which checks the session and posted form key.

// if ($this->session->isLoggedIn() || !$this->formKeyValidator->validate($this->getRequest())) {

      // /** @var \Magento\Framework\Controller\Result\Redirect $resultRedirect */

      // $resultRedirect = $this->resultRedirectFactory->create();

      // $resultRedirect->setPath('*/*/');

      // return $resultRedirect;

// } 

Magento 2 cannot add products to cart

On localhost environment, there is this annoying issue on CHROME browser. When you add products to cart, you will see no errors displayed, but products will not be added to cart.

Few of the stack overflow post suggest to change the localhost URL to OR adding a vhost entry to change the localhost url to something else. I have found a quick fix for this issue. This fix is not recommended for Production environment.  This is only for the developers who are working on their local environment.


There is a form_key mismatch. Form key which gets posted during add to cart action and the stored Session value form key is mismatched.

Quick fix.

Go to vendor/magento/module-checkout/Controller/Cart/Add.php execute() method.
Comment out the first if condition which checks the session and posted form key.

//if (!$this->_formKeyValidator->validate($this->getRequest())) {

        //return $this->resultRedirectFactory->create()->setPath('*/*/');