graphql load example https://medium.com/@mesirii/better-data-import-with-graphql-548084a35dfd

_run.sh

npm install -g neo4j-graphql graphql-cli graphql-cli-load
mkdir movies; cd movies
graphql init
neo4j-graphql movies-schema.graphql
graphql fetch-schema
grep -e "\(create\|add\)" schema.graphql
# addMovieActors(id: ID!, actors: [ID!]!): String
# createMovie(id: ID!, title: String, year: Long): String
# createActor(id: ID!, name: String): String

graphql load -m createMovie -file movies.json
graphql load -m createPerson -file people.json
graphql load -m addMovieActors -file actors.csv -mapping '{movieId:movie, roleName: role}'

actors.csv

movies-schema.graphql

type Movie {
  id: ID!
  title: String
  year: Int
  actors: [Actor] @relation(name: "ACTED_IN", direction: IN)
}
type Actor {
  id: ID!
  name: String
}

movies.json

[
{
  "id": 0,
  "title": "The Matrix",
  "year": 1999
}
,
{
  "id": 9,
  "title": "The Matrix Reloaded",
  "year": 2003
}
,
{
  "id": 10,
  "title": "The Matrix Revolutions",
  "year": 2003
}
,
{
  "id": 11,
  "title": "The Devil's Advocate",
  "year": 1997
}
,
{
  "id": 15,
  "title": "A Few Good Men",
  "year": 1992
}
,
{
  "id": 29,
  "title": "Top Gun",
  "year": 1986
}
,
{
  "id": 37,
  "title": "Jerry Maguire",
  "year": 2000
}
,
{
  "id": 46,
  "title": "Stand By Me",
  "year": 1986
}
,
{
  "id": 52,
  "title": "As Good as It Gets",
  "year": 1997
}
,
{
  "id": 56,
  "title": "What Dreams May Come",
  "year": 1998
}
]

people.json

[
{
  "id": 4,
  "name": "Hugo Weaving"
}
,
{
  "id": 3,
  "name": "Laurence Fishburne"
}
,
{
  "id": 2,
  "name": "Carrie-Anne Moss"
}
,
{
  "id": 1,
  "name": "Keanu Reeves"
}
,
{
  "id": 13,
  "name": "Al Pacino"
}
,
{
  "id": 12,
  "name": "Charlize Theron"
}
,
{
  "id": 28,
  "name": "Aaron Sorkin"
}
,
{
  "id": 26,
  "name": "Christopher Guest"
}
,
{
  "id": 23,
  "name": "Kevin Pollak"
}
,
{
  "id": 22,
  "name": "Cuba Gooding Jr."
}
,
{
  "id": 25,
  "name": "James Marshall"
}
,
{
  "id": 24,
  "name": "J.T. Walsh"
}
,
{
  "id": 20,
  "name": "Kiefer Sutherland"
}
,
{
  "id": 21,
  "name": "Noah Wyle"
}
,
{
  "id": 18,
  "name": "Demi Moore"
}
,
{
  "id": 19,
  "name": "Kevin Bacon"
}
,
{
  "id": 16,
  "name": "Tom Cruise"
}
,
{
  "id": 17,
  "name": "Jack Nicholson"
}
,
{
  "id": 34,
  "name": "Meg Ryan"
}
,
{
  "id": 33,
  "name": "Tom Skerritt"
}
,
{
  "id": 30,
  "name": "Kelly McGillis"
}
,
{
  "id": 32,
  "name": "Anthony Edwards"
}
,
{
  "id": 31,
  "name": "Val Kilmer"
}
,
{
  "id": 44,
  "name": "Jonathan Lipnicki"
}
,
{
  "id": 40,
  "name": "Jerry O'Connell"
}
,
{
  "id": 41,
  "name": "Jay Mohr"
}
,
{
  "id": 42,
  "name": "Bonnie Hunt"
}
,
{
  "id": 43,
  "name": "Regina King"
}
,
{
  "id": 38,
  "name": "Renee Zellweger"
}
,
{
  "id": 39,
  "name": "Kelly Preston"
}
,
{
  "id": 51,
  "name": "Marshall Bell"
}
,
{
  "id": 50,
  "name": "John Cusack"
}
,
{
  "id": 49,
  "name": "Wil Wheaton"
}
,
{
  "id": 47,
  "name": "River Phoenix"
}
,
{
  "id": 48,
  "name": "Corey Feldman"
}
,
{
  "id": 54,
  "name": "Greg Kinnear"
}
,
{
  "id": 53,
  "name": "Helen Hunt"
}
,
{
  "id": 57,
  "name": "Annabella Sciorra"
}
,
{
  "id": 60,
  "name": "Robin Williams"
}
,
{
  "id": 59,
  "name": "Werner Herzog"
}
,
{
  "id": 58,
  "name": "Max von Sydow"
}
]

z-create-data.cypher

:play movies

match (m:Movie) return collect(m {id:id(m), .title, year:m.released})[0..10] as movies
-> copy as movies.json

match (m:Movie) WITH m limit 10 match (m)<-[:ACTED_IN]-(a) where a.name <> 'Emil Eifrem' return collect(distinct a {id:id(a), .name}) as actors
-> copy as actors.json

match (m:Movie) WITH m limit 10 match (m)<-[:ACTED_IN]-(a) return id(m) as movieId, collect(id(a)) as actors
// download as CSV

// register schema

call graphql.idl('
type Movie {
  id: ID!
  title: String
  year: Int
  actors: [Actor] @relation(name: "ACTED_IN", direction: IN)
}
type Actor {
  id: ID!
  name: String
}
')