Apollo Graphql Custom Scalar JSON - complains "TypeError: type.getFields is not a function" - json

Question

I'm working on an apollo-express graphql server. I attempted to integrate the module 'graphql-type-json' but when I followed this description on how to integrate, I've tried many things but it seems that the type isn't being passed to the resolver correctly - but I've hit a wall in my debugging and could use a little help. Here is a summary of what I'm doing.
import { makeExecutableSchema } from 'graphql-tools';
const GraphQLJSON = require('graphql-type-json');
//Have also tried import GraphQLJSON from 'graphql-type-json';
const schema = `
scalar JSON
type Device {
deviceconfig: JSON
}
type Query {
foo: Foo
}
`;
const resolveFunctions = {
JSON: GraphQLJSON,
//JSON: {return GraphQLJSON} stops error but other issues come up...
Query: ...
};
const jsSchema = makeExecutableSchema({
typeDefs: schema,
resolvers: resolveFunctions,
resolverValidationOptions: {
requireResolversForNonScalar: false,
},
allowUndefinedInResolve: true,
printErrors: true,
});
Not sure if it's relevant but there are a few issues with my npm:
graphql-type-json#0.1.4
UNMET PEER DEPENDENCY graphql#0.8.2 invalid
├─┬ graphql-tools#0.4.2
│ ├── UNMET PEER DEPENDENCY graphql#^0.5.0 || ^0.6.0
npm ERR! peer dep missing: graphql#^0.6.1 || ^0.7.0, required by apollo-server#0.3.3
npm ERR! peer dep missing: graphql#^0.5.0, required by graphql-tools#0.4.2
npm ERR! extraneous: casual#1.5.8 /home/apollo/node_modules/casual
npm ERR! extraneous: mongoose#4.6.6 /home/apollo/node_modules/mongoose
npm ERR! extraneous: mysql-events#0.0.8 /home/apollo/node_modules/mysql-events
npm ERR! peer dep missing: graphql#^0.5.0 || ^0.6.0, required by express-widgetizer#0.5.11

Answer 1

I resolved custom scalar JSON like this in resolvers
JSON: {
__serialize(value) {
return GraphQLJSON.parseValue(value);
} }
And It worked fine for me. I think it will help you