GraphQL integration in Shopify apps

Sachin Gevariya

Jan 11, 2020

Project summary

Shopify App to manage the combo products. We were creating a single product by adding multiple products to that single combo product and manages the inventory when any combo product or individual product from that combo purchased by any user from any location of inventory.

Problem

We were using ShopifyAPI calls for performing create products and manage them, as ShopifyAPI has some limit to make API calls, it’s 40 requests per 2 seconds and we were making frequent requests for managing resources. And this API call limit was a headache to achieve concurrent results.

Solution

To Resolve this time-consuming API Calls we used GraphQL provided by Shopify. These are very lightweight response and quick also easy to structure calls with minimal required fields. With passing only those fields we require it to make calls faster than ever before and gives us freedom from API Rate Limit issue.

Solution Implementation

In that multiple combo_product_id available. So we passed id to product query and after that run query on product query.

def fetch_products

  product_query(combo_product_id)

  client.query(ProductQuery)

end

In that, we find out variant inventory item id and also find out metafields’ information using nodes that can indicate specific data. Kernel’s client parses the query and give data to the ProductQuery object.

def product_query(id) query = <<-GRAPHQL

{

  nodes(ids: #{id}) {

       ... on Product {

        variants(first: 1){

          edges{

            node{

             id

             inventoryItem {

               id

             }

           }

         }

       }

     }

     metafields(first: 10){

       edges{

         node{

           key

           value

         }

       }

     }

   }

 }

GRAPHQL

  Kernel.const_set(:ProductQuery, client.parse(query))

end

For finding client

def client

  ShopifyAPI::GraphQL.new

end

Sachin Gevariya, Founder And Technical Director @ Essence Solusoft

Sachin Gevariya is a Founder and Technical Director at Essence Solusoft. He is dedicated to making the best use of modern technologies to craft end-to-end solutions. He also has a vast knowledge of Cloud management. He loves to do coding so still doing the coding. Also, help employees for quality based solutions to clients. Always eager to learn new technology and implement for best solutions.

Ruby On Rails

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