Getting Unexpected schema type: Query

[garritfra]

Hi,

I just stumbled upon this error:

Error: Unexpected schema type: Query
at rewireNamedType (/app/node_modules/@graphql-tools/utils/index.js:2274:15)
at rewireTypes (/app/node_modules/@graphql-tools/utils/index.js:2199:32)
at Object.mapSchema (/app/node_modules/@graphql-tools/utils/index.js:2370:37)
at createNewSchemaWithResolvers (/app/node_modules/@graphql-tools/schema/index.js:304:20)
at addResolversToSchema (/app/node_modules/@graphql-tools/schema/index.js:194:11)
at makeExecutableSchema (/app/node_modules/@graphql-tools/schema/index.js:503:14)
at module.exports (/app/server/apolloServer.js:52:30)
at main (/app/server/index.js:24:32

but I can't really make anything out of it, nor do I know where to look for errors. Is it an issue with the resolvers, or with the typedefs?

The strange thing out it is that it only occurs on our deployed infrastructure, and never on my local development environment. In the meantime I bumped some dependencies, including the graphql-tools packages listed below. The migration guide did not mention any of the imported functions we use, so I'd assume that it should (tm) be migrated correctly.

We recently implemented caching via directives. I don't know if that might have anything with how the schema is assembled.

Some Context

The versions used:

    "@graphql-tools/load-files": "^6.2.5",
    "@graphql-tools/merge": "8.1.2",
    "@graphql-tools/schema": "8.2.0",

Our schema is generated using makeExecutableSchema:

    const executableSchema = makeExecutableSchema({
        typeDefs: mergeTypeDefs(loadFilesSync(path.join(__dirname, './typeDefs'))),
        resolvers: mergeResolvers(loadFilesSync(path.join(__dirname, './resolvers/!(*.test).js'))),
    });

    const schema = applyMiddleware(executableSchema, tokenExpiredCheck, permissions, aliasResolver);

Our resolvers generally look like this:

module.exports = {
    Query: {
        users: (parent, variables, context, info) => (
            User.query().graphqlEager(info)
        ),
    },
    Mutation: {
        // ...
    },
    User: {
        fullName: async (parent) => {
            return "Jon Doe";
        },
    },
};

Our typedefs look like this:

type Query {
    users: [User!]!
}

type Mutation {
    updateUser(input: UpdateUserInput!): User!
}

type User @cacheControl(inheritMaxAge: true) {
    id: ID!
    name: String!
    type: UserType!
}

enum UserType {
    ADMIN
    REGULAR
}

[ardatan]

Could you create a live reproduction on CodeSandbox?

[garritfra]

Since I can't reproduce it locally, I'm afraid I can't pin down the exact issue. Do you have any pointers where I could look?

[ardatan]

Maybe applyMiddleware causes that but not sure. It is hard to tell something without a reproduction

[garritfra]

Just found the issue. We were manually overriding the version of graphql in our package.json, so it had nothing to do with this package. Sorry for the inconvenience!