Introspection ofType.field failed

[flymedllva]

Component(s)

router

Component version

v0.99.1

wgc version

0.58.5

controlplane version

router version

v0.99.1

What happened?

Description

When introspection is requested, it falls on ofType.field

Steps to Reproduce

Use the schema I sent you in the mail
#959 (comment)

Run Query:

query MutationsSchema {
  __schema {
    mutationType {
      fields {
        description
        name
        type {
          ofType {
            name
            fields {
              name
              description
            }
          }
        }
      }
    }
  }
}

Expected Result

new cosmo

{
  "errors": [
    {
      "message": "Failed to fetch from Subgraph 'introspection__type__fields' at Path '[email protected]', Reason: no data or errors in response."
    }
  ]
}

old cosmo

{
  "errors": [
    {
      "message": "Unexpected end of JSON input",
      "stack": "SyntaxError: Unexpected end of JSON input"
    }
  ]
}

Actual Result

Work Query

Environment information

Environment

OS: (e.g., "Ubuntu 20.04") macOS
Package Manager: pnpm, npm, yarn, etc pnpm
Compiler(if manually compiled): (e.g., "go 14.2") go version go1.22.5 darwin/arm64

Router configuration

version: "1"

# General router options
graph:
  name: "production"
  token: ""

log_level: "info"
listen_addr: "localhost:3002"
playground_enabled: true
introspection_enabled: true
json_log: true
shutdown_delay: 15s
grace_period: 20s
poll_interval: 10s
health_check_path: "/health"
readiness_check_path: "/health/ready"
liveness_check_path: "/health/live"
router_config_path: "config.json"

cors:
  allow_origins: ["*"]
  allow_methods:
    - HEAD
    - GET
    - POST
  allow_headers:
    - Origin
    - Content-Length
    - Content-Type
  allow_credentials: true
  max_age_minutes: 5m

# Config for custom modules   
# See "https://cosmo-docs.wundergraph.com/router/custom-modules" for more information   
modules:
  myModule:
    # Arbitrary values, unmarshalled by the module
    value: 1

Router execution config

No response

Log output

No response

Additional context

No response

[github-actions]

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[Aenimus]

Hi @flymedllva,

This does indeed appear to be an issue with the introspection datasource. However, this does not appear to be affecting any of our existing customers, who we must prioritise. We will attempt to address it when we have the capacity.

If this is urgent for you, we would encourage you to create a Pull Request that adequately fixes (with tests) this issue in the engine v2 package:
https://github.com/wundergraph/graphql-go-tools/
https://github.com/wundergraph/graphql-go-tools/tree/master/v2/pkg/introspection

Thanks!

The WunderGraph Team