@hapi/topo

Adding items with dependencies

This feature allows you to add items to a Topo instance with specified dependencies. In the code sample, 'first' depends on 'second', so 'second' will come before 'first' in the output order.

{"const Topo = require('@hapi/topo');
const topo = new Topo();
topo.add('first', { after: ['second'], group: 'a' });
topo.add('second', { group: 'b' });
console.log(topo.nodes); // Output will be in the order of dependencies, ['second', 'first']"}

Grouping and ordering

This feature demonstrates how to group items and ensure they are processed in a specific order based on their group dependencies. Items can be added in groups and ordered relative to other groups.

{"const Topo = require('@hapi/topo');
const topo = new Topo();
topo.add(['first', 'second'], { group: 'a' });
topo.add('third', { group: 'b', after: ['a'] });
console.log(topo.nodes); // Output will respect the group order and dependencies, ['first', 'second', 'third']"}