Shopify Admin API GraphQL tutorials or sample code?

[Alan_Reid]

Any one know of any decent tutorials or sample code to help me learn Shopify's GraphQL Admin API? I am using Rails, and have checked out the Shopify API docs, but don't seem to be getting anywhere.

I have the REST API working perfectly well, but can't seem to get the GraphQL side working - I have heard that the GraphQL side is quicker than the REST API.

Any help would be much appreciated.

[William_Homer · Accepted solution]

Alan, I'm also working through testing the GraphQL API.  Are you using the ShopifyAPI gem? 

If you are one thing for initial setup would be to walk through this documentation, https://github.com/Shopify/shopify_api/blob/master/docs/graphql.md#make-queries.

From there I simply create a query and pass it to client.query.  

client = ShopifyAPI::GraphQL.client

QUERY = client.parse <<-GRAPHQL
	mutation {
		orderEditBegin(id: "gid://shopify/Order/2140232974441") {
			calculatedOrder {
				id
			}
			calculatedLineItems {
				id
			}
		}
	}
GRAPHQL

result = client.query(QUERY)

Here is a list of the queries that you can create based on Shopify's documentation, https://shopify.dev/docs/admin-api/graphql/reference/mutation/ordereditbegin.

I hope that helps at least get you started.

[Alan_Reid]

Hi William,

Thanks for your response. I have tried that, but I couldn't get it to work. I am assuming that you need to set up the following first, then you can access the code you pasted?

shop_url = "https://#{API_KEY}:#{PASSWORD}@#{SHOP_NAME}.myshopify.com"
ShopifyAPI::Base.site = shop_url
ShopifyAPI::Base.api_version = '<version_name>'

[William_Homer]

yes, you would need to set the site and api version.  Are you getting an error on running `ShopifyAPI::GraphQL.client`?  If that's the case you need to save the schema so it loads when created, the gem has a nice rake task, the below is for private apps. 

rake shopify_api:graphql:dump SHOP_URL="https://API_KEY:PASSWORD@SHOP_NAME.myshopify.com" API_VERSION=2020-01

[Alan_Reid]

I will try that, thanks for the advice :D hoping I can get this working as it will make life so much easier 

[Alan_Reid]

I get this error...

dynamic constant assignment SHOP_NAME_QUERY = client.parse <<-'GRAPHQL'

any ideas?

This is my code (obviously with the correct api key etc.)

    shop_url = "https://#{API_KEY}:#{PASSWORD}@#{SHOP_NAME}.myshopify.com"
    ShopifyAPI::Base.site = shop_url
    ShopifyAPI::Base.api_version = '2020-01'

    client = ShopifyAPI::GraphQL.client

    SHOP_NAME_QUERY = client.parse <<-'GRAPHQL'
    {
    shop {
      name
    }
    }
    GRAPHQL

    result = client.query(SHOP_NAME_QUERY)
    puts result.data.shop.name

[William_Homer]

Can you send the code that you are running prior to the error? 

[Alan_Reid]

Just updated the code I am running, thank you for looking.

[William_Homer]

Hmm, I'm running your exact code on my end and it's working.  The message that you are providing as well doesn't give me anything to go off of.  I'm not sure how you are running the code, if possible (and if your not already doing so), to run a rails c and run the code one line at a time to see where it may be failing? 

[Alan_Reid]

The system seemed to remove my update so I will repost.

shop_url = "https://#{API_KEY}:#{PASSWORD}@#{SHOP_NAME}.myshopify.com"
ShopifyAPI::Base.site = shop_url
ShopifyAPI::Base.api_version = '<version_name>'

client = ShopifyAPI::GraphQL.client

QUERY = client.parse <<-'GRAPHQL'
{
  shop {
    name
  }
}
GRAPHQL

result = client.query(QUERY)
puts result.data.shop.name