Cypher query options, including runtime can be defined in GraphQL

From version 5+ of the Neo4j GraphQL library, cypher query options are passed per request. 

Here is an example code snippet of how to set this when using startStandaloneServer:

import { ApolloServer } from '@apollo/server';
import { startStandaloneServer } from '@apollo/server/standalone';
import { Neo4jGraphQL } from "@neo4j/graphql";
import neo4j from "neo4j-driver";

const typeDefs = `....`;

const driver = neo4j.driver(
    "neo4j://localhost:7687",
    neo4j.auth.basic("username", "password")
);

const neoSchema = new Neo4jGraphQL({ typeDefs, driver })
const server = new ApolloServer({ schema: await neoSchema.getSchema() });

const { url } = await startStandaloneServer(server, {
    context: async ({ req }) => ({
         req, cypherQueryOptions: { runtime: "slotted", },
    }),
    listen: { port: 4000 },
});

Similarly,  here is a brief example of how you could achieve this when using a middleware pattern: 

import apolloServer from "./server"
app.use('/',
  expressMiddleware(apolloServer, {
      context: async ({ req, res }) => {
            return {
              req, res, cypherQueryOptions: { runtime: 'slotted' },
            };
        }
      },
  )
)

---

 

Prior to version 5 of the Neo4j Cypher library, query options can be set at a global level.

Please add CypherRuntime as a constant and then set runtime: CypherRuntime.INTERPRETED, when you define the neoSchema.

Below is an example code snippet for this:

const { ApolloServer } = require("apollo-server");
const neo4j = require("neo4j-driver");
const fs = require("fs");
const dotenv = require("dotenv");
const path = require("path");
const { Neo4jGraphQL, CypherRuntime } = require("@neo4j/graphql");

 // Create executable GraphQL schema from GraphQL type definitions,
 // using @neo4j/graphql to autogenerate resolvers
 const neoSchema = new Neo4jGraphQL({
     typeDefs,
     config: {
      queryOptions: {
         runtime: CypherRuntime.INTERPRETED,
      },
    },
 });

Please note that when you set this, the newly set runtime will be used for all the queries that will run.