graphql enum not defined in schema

Question

I am currently learning GraphQL and I have stumbled upon this error. How can I fix it while still using the GraphQLEnumType object.

const { ApolloServer, gql } = require('apollo-server');
const { GraphQLEnumType } = require('graphql');

const Bonus = new GraphQLEnumType({
    name: 'Bonus',
    values: {
        BIG: {
            value: "Big",
        },
        SMALL: {
            value: "Small",
        }
    },
});

const typeDefs = gql`

enum Bonus {
  BIG
  SMALL
}
`;

const resolvers = {
    Bonus : Bonus
}

const server = new ApolloServer({
    typeDefs,
    resolvers
});

server.listen().then(({ url }) => {
    console.log(`????  Server ready at ${url}`);
});

Following is the error:

/home/jonas/Projects/javascript-questions-flow4b/backend/node_modules/graphql-tools/dist/generate/addResolveFunctionsToSchema.js:53 throw new _1.SchemaError(typeName + "." + fieldName + " was defined in resolvers, but enum is not in schema"); ^

Error: Bonus.name was defined in resolvers, but enum is not in schema

Daniel Rearden Daniel Rearden · Accepted Answer · 2019-05-14T19:41:19

You can't use GraphQLEnumType if you're configuring ApolloServer using typeDefs and resolvers. Instead, if you want to provide custom values for your enum values, pass in the appropriate object as part of your resolvers, as shown in the docs.

const resolvers: {
  Bonus: {
    BIG: 'Big',
    SMALL: 'Small', 
  },
}

Note that you only need to do this if you want to internally map the enum values to something other than their names. BIG will map to "BIG" and SMALL will map to "SMALL" by default, so if that's all you need, just don't include Bonus in your resolvers at all.

graphql enum not defined in schema

2 Answers