could not add custom dateTime

[chaymag]

Hello , i'm trying to add dateTime scalar, i followed this tuto https://www.okgrow.com/posts/using-scalar-types-to-improve-graphql-schemas , i populated my seeder with data, added a dateTime field to my type and inserted some data with created_at as dateTime but when i execute npm start i get the following error " throw new Error('Type "' + typeRef.name.value + '" not found in document.');
^

Error: Type "DateTime" not found in document."
I can't figure out what causes this error.

[johnymontana]

@chaymag could you try again now with the updated version? I've updated the version of neo4j-graphql.js used which should include support for custom scalars.

Also, we're working on adding proper DateTime support to neo4j-graphql.js soon, so once this is merged in a custom scalar won't be needed and will work out of the box with the Neo4j temporal types.

[JohnathanMaravilla]

@johnymontana,

I've updated neo4j-graphql-js to ^1.0.5 and I'm still having the same issue @chaymag originally reported while attempting to use the DateTime custom scalar within the okgrow/graphql-scalars package , as well as the issues I've outlined in issue #15.

[mikejoconnor]

This is due to the starter using makeAugmenentedSchema() where the install instructions for DateTime are using makeExecutableSchema.

After spending more time on this than I care to admit, I have it working. Here is my index.js

import { ApolloServer, makeExecutableSchema } from "apollo-server";
import { v1 as neo4j } from "neo4j-driver";
import { makeAugmentedSchema, augmentTypeDefs } from "neo4j-graphql-js";
import dotenv from "dotenv";

import { DateTime, DateTimeScalar} from "@okgrow/graphql-scalars"

// set environment variables from ../.env
dotenv.config();

/*
 * Create an executable GraphQL schema object from GraphQL type definitions
 * including autogenerated queries and mutations.
 * Optionally a config object can be included to specify which types to include
 * in generated queries and/or mutations. Read more in the docs:
 * https://grandstack.io/docs/neo4j-graphql-js-api.html#makeaugmentedschemaoptions-graphqlschema
 */


const schema = makeExecutableSchema({
  typeDefs: [
    DateTimeScalar, augmentTypeDefs(typeDefs)
  ],
  resolverValidationOptions: {
    requireResolversForResolveType: false
  },
  resolvers: {
    DateTime,
  },
});

const augmentedSchema = makeAugmentedSchema({
  schema: schema,
  //typeDefs: typeDefs

});

/*
 * Create a Neo4j driver instance to connect to the database
 * using credentials specified as environment variables
 * with fallback to defaults
 */
const driver = neo4j.driver(
  process.env.NEO4J_URI || "bolt://localhost:7687",
  neo4j.auth.basic(
    process.env.NEO4J_USER || "neo4j",
    process.env.NEO4J_PASSWORD || "neo4j"
  )
);

/*
 * Create a new ApolloServer instance, serving the GraphQL schema
 * created using makeAugmentedSchema above and injecting the Neo4j driver
 * instance into the context object so it is available in the
 * generated resolvers to connect to the database.
 */
const server = new ApolloServer({
  context: { driver },
  schema: augmentedSchema
});

server.listen(process.env.GRAPHQL_LISTEN_PORT, "0.0.0.0").then(({ url }) => {
  console.log(`GraphQL API ready at ${url}`);
});