json.toJson

flex.json.toJson(value)

WITH {name: 'Alice', age: 30, active: true} AS user
RETURN flex.json.toJson(user) AS json

json
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'{"name":"Alice","age":30,"active":true}'

WITH [1, 2, 3, 4, 5] AS numbers
RETURN flex.json.toJson(numbers) AS json

json
-----------
'[1,2,3,4,5]'

MATCH (p:Product)
WITH collect({id: p.id, name: p.name, price: p.price}) AS products
RETURN flex.json.toJson(products) AS jsonExport

MATCH (u:User {id: 123})
WITH u, {lastLogin: u.lastLogin, preferences: u.preferences} AS metadata
SET u.metadataJson = flex.json.toJson(metadata)