@douglasgabr/cypher-builder - npm Package Versions

import { Builder } from '@douglasgabr/cypher-builder';
new Builder().where((w) => {
  w.andAll('item', 'list', (w) => w.and('item', '>', 0))
    .andExists('other')
    .orExists((p) => p.node('n1').relationship().node('n2'));
});
// WHERE all(item IN list WHERE item > $item)
//   AND exists(other)
//   OR exists((n1)--(n2))
// $item => 0

import { Builder } from '@douglasgabr/cypher-builder';
new Builder().create((c) => c.node('user', 'User'));
// CREATE (user:User)

import { Builder, literal } from '@douglasgabr/cypher-builder';
new Builder()
  .match((m) => m.node('user', 'User', { id: literal('literal.id') }))
  .where((w) => w.and('user.name', literal('friend.name')));
// MATCH (user:User{ id: literal.id })
// WHERE user.name = friend.name

const filter = { name: '' }; // empty filter
new Builder()
  .match((m) => m.node('person'))
  .where((w) => {
    if (filter.name) {
      // will not execute
      w.and('person.name', filter.name);
    }
  })
  .return('person')
  .build();
// MATCH (person)
// RETURN person

fix(patterns): don't add brackets to empty relationship patterns (.relationship())

• before: -[]-
• after: --

feat(clauses): add label predicates to where:

new Builder()
  .where((w) => {
    w.andLabel('user', 'User').andLabel('admin', ['User', 'Admin']);
  })
  .build();
// WHERE user:User AND admin:User:Admin