cypher-directive-tests.adoc

Cypher Directive Test

Table of Contents

• Schema
• Queries
  • Simple Cypher Directive on Field
  • render cypher query directive params args
  • render cypher field directive with params defaults
  • render cypher query directive
  • render cypher mutation directive
  • render cypher field directive with params
  • render cypher field directive nested
  • render cypher query directive params
  • render cypher field directive scalar

Schema

type Person {
  id: ID
  name: String @cypher(statement:"RETURN this.name")
  age(mult:Int=13) : [Int] @cypher(statement:"RETURN this.age * mult as age")
  friends: [Person] @cypher(statement:"MATCH (this)-[:KNOWS]-(o) RETURN o")
}
type Query {
  person : [Person]
  p2: [Person] @cypher(statement:"MATCH (p:Person) RETURN p")
  p3(name:String): Person @cypher(statement:"MATCH (p:Person) WHERE p.name = name RETURN p LIMIT 1")
}
type Mutation {
  createPerson(name:String): Person @cypher(statement:"CREATE (p:Person) SET p.name = name RETURN p")
}
schema {
  query: Query
  mutation: Mutation
}

Queries

Simple Cypher Directive on Field

GraphQL-Query

{ person { name }}

Cypher Params

{}

Cypher

MATCH (person:Person)
RETURN person { name:apoc.cypher.runFirstColumnSingle('WITH $this AS this RETURN this.name', { this:person }) } AS person

render cypher query directive params args

GraphQL-Query

query($pname:String) { p3(name:$pname) { id }}

Query variables

{"pname":"foo"}

Cypher params

{"pname":"foo"}

Cypher

UNWIND apoc.cypher.runFirstColumnSingle('WITH $name AS name MATCH (p:Person) WHERE p.name = name RETURN p LIMIT 1', { name:$pname }) AS p3 RETURN p3 { .id } AS p3

render cypher field directive with params defaults

GraphQL-Query

{ person { age }}

Query variables

{}

Cypher params

{"personMult":13}

Cypher

MATCH (person:Person) RETURN person { age:apoc.cypher.runFirstColumnMany('WITH $this AS this, $mult AS mult RETURN this.age * mult as age', { this:person, mult:$personMult }) } AS person

render cypher query directive

GraphQL-Query

{ p2 { id }}

Query variables

{}

Cypher params

{}

Cypher

UNWIND apoc.cypher.runFirstColumnMany('MATCH (p:Person) RETURN p', { }) AS p2 RETURN p2 { .id } AS p2

render cypher mutation directive

GraphQL-Query

mutation { person: createPerson(name:"Joe") { id }}

Query variables

{}

Cypher params

{"personName":"Joe"}

Cypher

CALL apoc.cypher.doIt('WITH $name AS name CREATE (p:Person) SET p.name = name RETURN p', { name:$personName }) YIELD value WITH value[head(keys(value))] AS person RETURN person { .id } AS person

render cypher field directive with params

GraphQL-Query

{ person { age(mult:25) }}

Query variables

{}

Cypher params

{"personMult":25}

Cypher

MATCH (person:Person) RETURN person { age:apoc.cypher.runFirstColumnMany('WITH $this AS this, $mult AS mult RETURN this.age * mult as age', { this:person, mult:$personMult }) } AS person

render cypher field directive nested

GraphQL-Query

{ person { friends { id } }}

Query variables

{}

Cypher params

{}

Cypher

MATCH (person:Person)
RETURN person { friends:[personFriends IN
  apoc.cypher.runFirstColumnMany('WITH $this AS this  MATCH (this)-[:KNOWS]-(o) RETURN o', { this:person }) | personFriends { .id }] } AS person

render cypher query directive params

GraphQL-Query

{ p3(name:"Jane") { id }}

Query variables

{}

Cypher params

{"p3Name":"Jane"}

Cypher

UNWIND apoc.cypher.runFirstColumnSingle('WITH $name AS name MATCH (p:Person) WHERE p.name = name RETURN p LIMIT 1', { name:$p3Name }) AS p3 RETURN p3 { .id } AS p3

render cypher field directive scalar

GraphQL-Query

{ person { name }}

Query variables

{}

Cypher params

{}

Cypher

MATCH (person:Person) RETURN person { name:apoc.cypher.runFirstColumnSingle('WITH $this AS this RETURN this.name', { this:person }) } AS person