A node.js library created to help you create, modify, and export Factorio blueprints and blueprint strings!
This library supports simple tasks such as adding or removing entities to more complex tasks such as connecting entities via wires and modifying combinators.
See docs here.
If you want to use this on a site, you can access the latest build in /dist
$ npm install factorio-blueprint
const Blueprint = require('factorio-blueprint');
// Create a blueprint with nothing in it
const myBlueprint = new Blueprint();
// Import a blueprint using a blueprint string
const importedBlueprint = new Blueprint(blueprintString);
// Modify the blueprint!
myBlueprint.createEntity('transport-belt', { x: 0, y: 0 }, Blueprint.UP);
importedBlueprint.entities[0].remove();
// Export the string to use in-game
console.log(myBlueprint.encode());