“Received status code 400” after apollo-server deploy to heroku

问题

If I run localy npm start - everything is ok

If I run git subtree push --prefix server heroku-server master - Build succeeded!

When I open https://tmdb-apollo.herokuapp.com/ - "error": "Response not successful: Received status code 400"

If I still do a query or mutation - it works! magic! (but I do not have autocomplete and shema sidebar on the right is always spinning)

Github repo here

I suspect it has something to do with my MongoDB connection setup

回答1:

It's been nearly 3 days till I found a solution: Need to add introspection: true

// Set up Apollo Server
const server = new ApolloServer({
  typeDefs,
  resolvers,
  dataSources,
  context,
  introspection: true,
})

来源：https://stackoverflow.com/questions/53606573/received-status-code-400-after-apollo-server-deploy-to-heroku