GraphQL : the object name is defined in resolvers, but not in schema

Question

I want to define a mutation using graphql.

My mutation is getting an object as argument. So I defined the new Object in the schema and in the resolver using GraphQLObjec

Answer 1

Extra data (Related to the error - not to the Q code).

hello-world

We define our resolvers in a map, where the map's keys correspond to our schema's types. https://www.apollographql.com/docs/tutorial/resolvers/

The most basic "hello world" example of this "wrong map" error.

I was wrong on purpose (under resolver definitions - use hello2 instead of hello).

graphql-yoga server example:

/*index.js*/
const { GraphQLServer } = require('graphql-yoga')

const typeDefs = `
  type Query {
    hello(name: String): String!
  }
`

const resolvers = {
  Query: {
    hello2: (_, { name }) => `Hello ${name || 'World'}`,
  },
}

const server = new GraphQLServer({ typeDefs, resolvers })
server.start(() => console.log('Server is running on localhost:4000'))

Throw error:

[Error: Query.hello2 defined in resolvers, but not in schema]

Change the resolver to hello (match to hello schema type) to fix this error:

Related:

• schema docs: https://graphql.org/learn/schema/
• Great tuturial: https://www.apollographql.com/docs/tutorial/introduction/