Plugin chokes on Shopify's GraphQL schema

[cies]

Describe the bug
Schema inspection on the Pokemon GraphQL from the plugin works like a charm. Changing it to the Shopify GraphQL API endpoint and inspecting again results in an error.

GraphiQL (the web based GraphQL IDE) does work with the Shopify GraphQL schema: https://shopify.dev/graphiql/admin-graphiql

To Reproduce
In the root of the project I have graphql.config.yml:

schema: "https://shopify.dev/admin-graphql-direct-proxy/2025-04"
documents: 'src/main/**/*.graphql'

I press the little "play icon" in the margin before the schema: ... line.

After some seconds I get a notification (small tooltip in the bottom right of the screen) saying:

GraphQL introspection

A valid schema could not be built using the introspection result.

It gives me a "Show error" link which brings me to a file (query-error.txt) with the content:

format specifier '% o'

My Shopify queries (in 'src/main/**/*.graphql') show mostly red errors.

When I change the URL in graphql.config.yml to https://beta.pokeapi.co/graphql/v1beta and press the "play icon" all seems to work well (after I change the queries to fit the schema, obviously)...

Expected behavior
Shopify should work, or the error should be descriptive enough so that it's clear what's going wrong.

Version and Environment Details
Operation system: Linux
IDE name and version: IDEA 2025.1.2 UE
Plugin version: 251.26094.37

[cies]

I've published the example project here: https://github.com/cies/kotlin-graphql-example

(simply change the URL in the graphql.config.yml file)

[cies]

Downgraded to 251.26094.37 (compatibility 2025.1.2 — 2025.1.3); still get the same error as described above.

[trynow-david]

I'm also having this issue with a different graphql schema.

Downgrading to 251.23774.109 worked to fix this.

[cies]

I've also found a fix in not downloading the schema from the plugin, but letting the Gradle task of graphql-kotlin do the downloading the schema. Then I use the graphql.config.yml for to point to that file. Caveat: the schema file cannot be in the build/ folder.

I figured this out with help of the Kotlin Slack, see the conversation here: https://app.slack.com/client/T09229ZC6/CQLNT7B29

I have updated my example project, see it here: https://github.com/cies/kotlin-graphql-example

I also found that the graphql-kotlin now needs some parserOptions to work with the super large schema file that Shopify comes with:

graphql {
  client {
    // ...
    parserOptions {
      maxCharacters = 25000000
      maxTokens = 250000
    }
  }
}

Maybe this is also the reason for this plugin failing (apparently the underlying Java library started failing on large inputs in order to prevent DoS attacks).

[cbusillo]

I have this issue in PyCharm. For some reason I cannot get it to use my downloaded introspection file either. I've pointed to it with the graphql.config.yml, and it doesn't seem to pick it up. I assume it's a bug in the plugin. I wanted to post here hoping it eventually gets fixed :)