danstarns

CREATE (:Movie {title: "The Matrix"})
CREATE (:Movie {title: "The Matrix Reloaded"})
CREATE (:Movie {title: "Forrest Gump"})

danstarns

type = "directrequest"
schemaVersion = 1
name = "select"
contractAddress = "YOUR_ORACLE_ADDRESS"
maxTaskDuration = "0s"
observationSource = """
    decode_log   [type="ethabidecodelog"
                  abi="OracleRequest(bytes32 indexed specId, address requester, bytes32 requestId, uint256 payment, address callbackAddr, bytes4 callbackFunctionId, uint256 cancelExpiration, uint256 dataVersion, bytes data)"
                  data="$(jobRun.logData)"
                  topics="$(jobRun.logTopics)"]

danstarns

CREATE (m:Movie {title: "Forrest Gump"})
CREATE (:Genre {name: "Action"})<-[:IN_GENRE]-(m)
CREATE (:Person {name: "Tom Hanks"})-[:ACTED_IN]->(m)

danstarns

MATCH (m:Movie {title: "Forrest Gump"})-[:ACTED_IN]->(a:Actor)
RETURN a

danstarns

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.7;

contract Movie {
    string public title; 
    string public imdbRating;

    constructor() {
        title = "Forrest Gump";
        imdbRating = "8.8";

danstarns

Neo4j-GraphQL-Code-Challenge

In this project, connect to or start a Neo4j database and seed data, run your own Neo4j GraphQL API, and make a HTTP call to your Neo4j GraphQL API using Javascript in the browser.

Objectives

1. Connect to or start a Neo4j database and seed data
2. Build a Neo4j GraphQL API to interact with the seeded data

danstarns

const { OGM } = require("@neo4j/graphql");
const neo4j = require("neo4j");

const typeDefs = gql`
    type Movie {
        released: BigInt!
        tagline: String
        title: String!
        ## Rest of the Relationships
    }

danstarns

Aggregation Queries Hasura vs Neo4j GraphQL

Comparing the queries here.

Fetch aggregated data of an object

Hasura

query {

danstarns

{
  "data": {
    "movies": [
      {
        "title": "The Da Vinci Code",
        "reviewersAggregate": {
          "edge": {
            "rating": {
              "max": "68"
            }

danstarns

{
  movies(where: { title: "The Da Vinci Code" }) {
    title
    reviewersAggregate {
      edge {
        rating {
          max
        }
      }
    }