GraphQL Error when Querying Model that Has a Union Multiple Type Prop

[phil-lgr]

I have an error with the lastest beta version .8

This query works with the GraphCMS.com playground:

{
  forms {
    id
    name
    formFields {
      __typename
      ... on FormField {
        id
        name
        locale
      }
      ... on FormFieldGroup {
        id
        locale
      }
    }
  }
}

but locally it doesn't:

query MyQuery {
  allGraphCmsForm {
    nodes {
      id
      name
      formFields {
        ... on GraphCMS_FormField {
          id
          name
        }
      }
    }
  }
}

Here is the error we get:

{
  "errors": [
    {
      "message": "Abstract type GraphCMS_FormFormFields must resolve to an Object type at runtime for field GraphCMS_Form.formFields with value {}, received \"null\". Either the GraphCMS_FormFormFields type should provide a \"resolveType\" function or each possible type should provide an \"isTypeOf\" function.",
      "locations": [
        {
          "line": 6,
          "column": 7
        }
      ],
      "path": [
        "allGraphCmsForm",
        "nodes",
        0,
        "formFields",
        1
      ],
      "stack": [
        "GraphQLError: Abstract type GraphCMS_FormFormFields must resolve to an Object type at runtime for field GraphCMS_Form.formFields with value {}, received \"null\". Either the GraphCMS_FormFormFields type should provide a \"resolveType\" function or each possible type should provide an \"isTypeOf\" function.",
        "    at ensureValidRuntimeType (/Users/phil/Documents/Code/newrade/node_modules/graphql/execution/execute.js:667:11)",
        "    at completeAbstractValue (/Users/phil/Documents/Code/newrade/node_modules/graphql/execution/execute.js:660:42)",
        "    at completeValue (/Users/phil/Documents/Code/newrade/node_modules/graphql/execution/execute.js:585:12)",
        "    at completeValue (/Users/phil/Documents/Code/newrade/node_modules/graphql/execution/execute.js:557:21)",
        "    at completeValueCatchingError (/Users/phil/Documents/Code/newrade/node_modules/graphql/execution/execute.js:495:19)",
        "    at /Users/phil/Documents/Code/newrade/node_modules/graphql/execution/execute.js:618:25",
        "    at Array.forEach (<anonymous>)",
        "    at forEach (/Users/phil/Documents/Code/newrade/node_modules/iterall/index.js:83:25)",
        "    at completeListValue (/Users/phil/Documents/Code/newrade/node_modules/graphql/execution/execute.js:614:24)",
        "    at completeValue (/Users/phil/Documents/Code/newrade/node_modules/graphql/execution/execute.js:573:12)",
        "    at completeValue (/Users/phil/Documents/Code/newrade/node_modules/graphql/execution/execute.js:557:21)",
        "    at /Users/phil/Documents/Code/newrade/node_modules/graphql/execution/execute.js:492:16",
        "    at processTicksAndRejections (internal/process/task_queues.js:93:5)",
        "    at async Promise.all (index 2)",
        "    at async Promise.all (index 0)",
        "    at async Promise.all (index 0)"
      ]
    }
  ],
  "data": null,
  "extensions": {
    "enableRefresh": "true"
  }
}

[phil-lgr]

cc @elliotpellerin

[ynnoj]

@phil-lgr Can you please share the generated GraphQL fragment for type Form?

Also, some kind of reproduction if possible (Codesandbox, GitHub repo). Will be very useful!

[phil-lgr]

fragment Form on Form {
  stage
  locale
  remoteId: id
  createdAt(variation: COMBINED)
  updatedAt(variation: COMBINED)
  publishedAt(variation: COMBINED)
  remoteParent: parent {
    ... on Form {
      remoteTypeName: __typename
      remoteId: id
      locale
    }
  }
  name
  childs {
    ... on Form {
      remoteTypeName: __typename
      remoteId: id
      locale
    }
  }
  formFields {
    ... on FormField {
      remoteTypeName: __typename
      remoteId: id
      locale
    }
  }
}

fragment FormField on FormField {
  stage
  locale
  remoteId: id
  createdAt(variation: COMBINED)
  updatedAt(variation: COMBINED)
  publishedAt(variation: COMBINED)
  type
  name
  placeholder
  validations {
    ... on FormFieldValidation {
      remoteTypeName: __typename
      remoteId: id
      locale
    }
  }
  form {
    ... on Form {
      remoteTypeName: __typename
      remoteId: id
      locale
    }
  }
}

fragment FormFieldGroup on FormFieldGroup {
  stage
  locale
  remoteId: id
  createdAt(variation: COMBINED)
  updatedAt(variation: COMBINED)
  publishedAt(variation: COMBINED)
  name
  formFields {
    ... on FormField {
      remoteTypeName: __typename
      remoteId: id
      locale
    }
  }
  form {
    ... on Form {
      remoteTypeName: __typename
      remoteId: id
      locale
    }
  }
}

[phil-lgr]

One thing I don't get is formFields

formFields {
    ... on FormField {
      remoteTypeName: __typename
      remoteId: id
      locale
    }
  }

Can be linked to FormField or FormFieldGroup

Do you see anything wrong with the schemas?

[phil-lgr]

Ok somehow we regenerated it again with the new version and it seems fine! Closing for now

Thanks @ynnoj