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Comments (4)

jeffijoe avatar jeffijoe commented on August 28, 2024

This is where you want to introduce a factory - I've answered this question in #29 β€” please check that out. πŸ˜„

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leorossi avatar leorossi commented on August 28, 2024

Ok thanks. :D
So I have changed the code to

File: user.js

'use strict';

module.exports = User;

function User({ log }, someData) {
  this.data = someData;
  this.id = Math.random();
  this.logger = log;
}

User.prototype.testStuff = function() {
  this.logger.info(`testStuff(): ${this.id}`);
  this.logger.info(this.data);
}

File: other.js

'use strict';

module.exports = Other

function Other({ createUser }) {
  this.createUser = createUser;
};

Other.prototype.createTwoUsers = function() {
  // what should I do here?
  const u1 = this.createUser({ name: 'Leonardo' });
  const u2 = this.createUser({ name: 'Antani'});

  u1.testStuff();
  u2.testStuff();
}

File: log.js

'use strict';

module.exports = Log

function Log({}) {};

Log.prototype.info = function(message) {
  console.log(message);
}

File: container.js

'use strict';

const { createContainer, Lifetime } = require('awilix');
const container = createContainer();

// Load modules
const log = require('./log');
const user = require('./user');
const other = require('./other');


container.registerClass({
  log: log,
  user: user,
  other: other
});


container.registerFunction({
  createUser: (cradle) => (data) => new user(cradle, data)
});
module.exports = container;

File: entrypoint.js

'use strict';
const container = require('./library/container');
// Require modules

const other = container.resolve('other');
other.createTwoUsers();

And as expected the output is

testStuff(): 0.8338925546289266
{ name: 'leorossi' }
testStuff(): 0.39900385375984593
{ name: 'jeffijoe' }

Thanks for the hints, great job!

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jeffijoe avatar jeffijoe commented on August 28, 2024

Glad I could help! Btw, you don’t have to register user since you only use the factory. πŸ˜€

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leorossi avatar leorossi commented on August 28, 2024

Yes that was a leftover from the previous example ;)

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