How to get custom module data into GraphQL Magento 2

Magento provides some default queries to retrieve many data. Sometimes you need to get custom data from a custom module. That time you need to need a custom graphql query to get custom data. Today we will learn how to custom module data from GraphQl in Magento 2. First create a basic module with a custom table and also create models for it. so after complete basic module you need to follow below steps:

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Magento 2.3.XX unable to serialize value and Failed to load the components errors on checkout

When I upgraded the Magento on the checkout page and that was “report.CRITICAL: Unable to serialize value . Error: Malformed UTF-8 characters, possible incorrectly encoded.” Please follow below step: 1)  Create registration.php file at Path :- app/code/Dolphin/Serializer

2) Create module.xml file at  Path :- app/code/Dolphin/Serializer/etc

3) Create di.xml file at path :- app/code/Dolphin/Serializer/etc…

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How to show product custom option into custom page in Magento 2

With custom options, it’s added some additional features for simple, configurable, downloadable and virtual products in Magento 2. This enable the creation of product variations. Bundle product and grouped product not support custom options. when we are adding custom options to the product then we get the more opportunity to make our product more flexible. Product with custom options are not configurable product. Product with custom options not change product type.

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