Magento 2.2.0 : Add to cart product error unable to unserialize value

Question

I have create gift card product types and add custom options like this

1. Choose Amount:Card value
2. select a design:

3. compose your email :

    To :
    Recipient Name
    Recipient Email
    Form :
    Sender Name
    Sender Email
   

4. Headline:
5. Message:
6. Date to send:
7. Time Zone

I added product into add to cart But, product is not update mini cart and checkout/cart page display error like this :

Exception #0 (InvalidArgumentException): Unable to unserialize value. #0 vendor/magento/module-catalog/Helper/Product/Configuration.php(118): Magento\Framework \Serialize\Serializer\Json->unserialize.

How to solve this type issue?

I tried the answers from "Magento 2.2 error: Unable to unserialize value" but this is not working.

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• Ravindrasinh Zala: i have already used this link but not working @Siarhey Uchukhlebau
• Siarhey Uchukhlebau: Try to debug from where this error comes (in backend). Check is taht error are reproducing when all third-party modules are disabled.
• Ravindrasinh Zala: now i am use magento 2.2.0 fresh version. @Siarhey Uchukhlebau

Answer 1

Now i have got the solution.

app/code/Vendor/Module/Helper/Data.php

 public function getUnserializeData($data)
 {
 $objectManager = \Magento\Framework\App\ObjectManager::getInstance();
 $version = $objectManager->get('Magento\Framework\App\ProductMetadataInterface')->getVersion();
 if($version >= '2.2.0'){
 $returnData = $objectManager->get('Magento\Framework\Serialize\SerializerInterface')->unserialize($data);
 }
 else{
 $returnData = (array) unserialize($data);
 }
 return $returnData; 
 }
 public function getSerializeData($data)
 {
 $objectManager = \Magento\Framework\App\ObjectManager::getInstance();
 $version = $objectManager->get('Magento\Framework\App\ProductMetadataInterface')->getVersion();
 if($version >= '2.2.0'){
 $returnData = $objectManager->get('Magento\Framework\Serialize\SerializerInterface')->serialize($data);
 }
 else{
 $returnData = serialize($data);
 }
 return $returnData; 
 }

app/code/Vendor/Module/Observer/CheckoutCartProductAddAfterObserver.php

 $additionalOptions = [];
 if ($additionalOption = $item->getOptionByCode('additional_options')) {
 $additionalOptions = $this->_helper->getUnserializeData($additionalOption->getValue());
 }
 if (count($additionalOptions) > 0) {
 $item->addOption([
 'code' => 'additional_options',
 'value' => $this->_helper->getSerializeData($additionalOptions)
 ]);
 }

• Jigs Parmar: my magento version is 2.2.5 but its not work. any other solution?
• Dinesh Yadav: It could be better with dependency injection. It is a good answer though. Upvote from my side :)