![]() Now, you may already be aware, parent_item_id is an existing field (it’s not a new database attribute). Let’s say I want to add the parent_item_id as an attribute available through the GraphQL Quote Endpoint (). ![]() Putting aside number 4 for now, let’s look at an example use case. You are responsible for ensuring custom data is actually available to the GraphQL layer (more on this below).You add new types, queries, or extend existing types and queries.You create a etc/aphqls file in your module.The process for adding a custom attribute to a GraphQL query is described below: But, it is no longer a requirement to change how the GraphQL endpoints work. This is not to say that you shouldn’t utilize the extension attributes functionality (there are other benefits to defining extension attributes beyond sending extra information in API calls). However, in GraphQL, Magento has made customizing API responses significantly easier. Extension Attributes / Custom Attributes – GraphQL API You are responsible for ensuring extension attributes are added to incoming and outgoing requestsĪt the end of the day, it’s quite verbose.Magento will send back extension attributes during certain REST calls as a sub-object in the json, e.g.,.You add a plugin / preference / observer to handle loading/saving your attributes.You define them (with an optional ACL permission) in extension_attributes.xml.Your module adds extension attributes to the database.If you’ve done any work with the Magento REST API, you’re probably aware that in order to send or receive custom attributes - e.g., attributes that are not part of the built in Data interfaces - you have to utilize Magento’s extension attribute functionality. Extension Attributes / Custom Attributes – REST API We still have a ways to go, but there is significant support for many basic operations through this API interface. The long-term goal (according to Magento’s docs here) is to support most default functionality through GraphQL. Magento 2.3 saw the introduction of the various GraphQL modules into the codebase.
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