Incompatibility with apollo-server ^2.2.0

Hello,

It seems that there is an incompatibility issue between graphql-middleware and apollo-server@^2.2.0

Here you can find an explanation about what is breaking : https://github.com/apollographql/apollo-server/issues/1935#issuecomment-438210375

So apparently something in graphql-middleware is turning the introspection query execution (from graphql/execution into a Promise instead of returning an object.

Another related issue : https://github.com/apollographql/apollo-server/issues/1934

In the meantime, the last working version is apollo-server@2.0.5

[schickling]

🎉 This issue has been resolved in version 3.0.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀

[dortamiguel]

@schickling Can we reopen this issue? I still get the following error using “graphql-middleware”: “^3.0.0” with “apollo-server-express”: “2.3.1”,

(node:38309) UnhandledPromiseRejectionWarning: Error: The introspection query is resolving asynchronously; execution of an introspection query is not expected to return a `Promise`.

This is how I use it

  const typeDefs = importSchema("./src/schema.graphql");
  const schema = makeExecutableSchema({ typeDefs, resolvers });
  const schemaWithMiddleware = applyMiddleware(schema, permissions);

  const apollo = new ApolloServer({
    schema: schemaWithMiddleware,
    resolvers,
    context: (ctx) => ({ ...ctx, db })
  });