@dazl/engine-core

Run-time abstractions for creating multi-environment web applications while practicing feature-oriented software development.

Approach

- An application is a set of one or more features.
- A feature contains all the integration code required to get a subset of product functionality implemented.
- Features may depend on other features, consume their exposed services and register into their slots.
- A service is a set of functions exposed as an API of a feature.
- A slot is a registry of any type, which allows pluggability via registration.
- Environments (browser/webworker/iframe) are defined by features, and have semantic names (main/processing/preview).
- Each slot and service is available in a specific environment.
- Services can be marked as accessible cross-environments, which exposes them as async APIs in those environment.

Feature

A feature is combined of several files:

- .feature.ts - feature definition file.
- ..env.ts - some-env specific setup code.
- ..env.ts - another-env specific setup code.

$3

Feature definition is created in a .feature.ts file, and is exposed as the default export.

For example:

``ts
/ my-feature.feature.ts /

import { Feature } from '@dazl/engine-core';

/ defining a new feature /
export default new Feature({
id: 'myFeature' / unique id for the feature /,

dependencies: [
/ other features the feature depends on /
],

api: {
/ slots, services, and configurations of the feature /
},
});
``