Graphql-code-generator: [Bug] Typescript errors in generated file

Created on 9 Dec 2020 · 2Comments · Source: dotansimha/graphql-code-generator

Describe the bug
I'm getting errors on the generated file. Comparing mine to other ones, it sure looks very strange. I could go on and fix the problem manually in the file, but it'd be lost after re-generating.

Error message

Type '"[object Object]"' does not satisfy the constraint '"__typename" | "id" | "name" | "size" | "filename" | "caminho" | "type" | "idObj" | "usuarios_id"'.  TS2344

    1004 |   & { anexos?: Maybe<Array<Maybe<(
    1005 |     { __typename?: 'anexos' }
  > 1006 |     & Pick<Anexos, '[object Object]' | '[object Object]' | '[object Object]' | '[object Object]'>
         |                    ^
    1007 |   )>>> }
    1008 | );
    1009 |

My GraphQL schema:

directive @cacheControl(
  maxAge: Int
  scope: CacheControlScope
) on FIELD_DEFINITION | OBJECT | INTERFACE
type anexos {
  id: ID!
  name: String!
  size: Float!
  filename: String!
  caminho: String!
  type: String!
  idObj: ID
  usuarios_id: sistema_usuarios!
}
...
type Query {
  anexos(idObj: ID): [anexos]
  anexo(id: ID!): anexos
  ...
}
...

My GraphQL operations:

query Anexos($idObj: ID) {
  anexos(idObj: $idObj) {
    id
    name
    size
    type
  }
}

Generated file

export type Anexos = {
  __typename?: 'anexos';
  id: Scalars['ID'];
  name: Scalars['String'];
  size: Scalars['Float'];
  filename: Scalars['String'];
  caminho: Scalars['String'];
  type: Scalars['String'];
  idObj?: Maybe<Scalars['ID']>;
  usuarios_id: Sistema_Usuarios;
};
...
export type AnexosQuery = (
  { __typename?: 'Query' }
  & { anexos?: Maybe<Array<Maybe<(
    { __typename?: 'anexos' }
    & Pick<Anexos, '[object Object]' | '[object Object]' | '[object Object]' | '[object Object]'>
  )>>> }
);

My codegen.yml config file:

overwrite: true
schema: "http://localhost:3938/graphql"
documents: "src/services/gql/api/*.gql"
generates:
  src/services/gql/generated/index.tsx:
    plugins:
      - "typescript"
      - "typescript-operations"
      - "typescript-react-apollo"
    config:
      whithHOC: false
      withComponents: false
      withHooks: true

Environment:

OS: macOS Sierra 10.12.6
@graphql-codegen/cli: 1.19.0
@graphql-codegen/typescript: 1.17.11
@graphql-codegen/typescript-operations: 1.17.8
@graphql-codegen/typescript-react-apollo: 2.0.7
typescript: 4.1.2
NodeJS: 15.2.0

Additional context
Query works fine on Playground. The error happens in other queries too, but I can't show them here. The error started after adding this query, it was working fine before, but removing the query doesn't fix the problem.

Source