Dject-CLI

CLI tooling for setting up and using the Dject DI system

Table Of Contents

• Section 1: Introduction
• Section 2: Installation
• Section 3: Dject CLI Usage
• Section 4: Version History

Introduction

Dject CLI is the companion tool to Dject for simplifying setup and use of the Dject dependency injection system.

The goal of this project is to simplify:

• Setup of a Node, require-based Dject configuration

• Setup for compile-at-build Dject configuration file for import-based projects

• Running build-time import-based Dject configuration

Installation

• npm i --global dject-cli
• npm i dject-cli --save-dev

Dject CLI Usage

Currently Dject CLI supports configuration creation for Node projects using CommonJS modules. Dject is capable of managing dependencies in a number of scenarios, but we all have to start somewhere, right?

Getting Help

Command: dject --help

This command will give you information about the current supported behaviors of Dject CLI. The provided information will always reflect the most up-to-date functionality.

Building a Node CommonJS Container Configuration

Command: dject --configure-node-commonjs

Configure-node-commonjs will prompt the user for configuration options. Sane defaults are provided and providing values for any options is strictly optional. After running configure-node-commonjs, a file will be written in the current working directory which fully configures Dject to work as a DI container for your node application.

Creating a Container Builder Config for ES-Next Modules

Command: dject --configure-es-module-builder

Configure-es-module-builder will prompt the user for configuration options. Sane defaults are provided and providing values for any options is strictly optional. After running Configure-es-module-builder, a file will be written in the current working directory which fully configures Dject CLI to build/rebuild a DI file for your import-based project. This build step will need to be integrated into your project build process.

An example of the generated config is as follows:

{
    "cwd": "app",
    "djectLocation": "dject",
    "destinationPath": "${cwd}${pathSeparator}container",
    "modulePaths": [
        "**${pathSeparator}*.js"
    ]
}

Configuration Variables

There are currently two supported configuration variables: ${cwd} and ${pathSeparator}. Following is how they are used:

• ${cwd} -- This will be replaced with the value in the cwd property of your configuration.
• ${pathSeparator} -- this will be replaced with the path separator for your operating system, '' in Windows and '/' in all other operating systems. This is identical to the value in path.sep within Node.

Building a Container for Imported/ES-Next Modules

Command: `dject --build-import-container [--config-path ./path/to/config/file.json]

Build-import-container will create a Dject container and load all import-style modules found in configured path. An example of the generated file is as follows:

import dject from 'dject';

import module0 from '../test-imports/subfolder/test2.js';
import module1 from '../test-imports/test1.js';


const container = dject.new();

container.register(module0.value, module0.name);
container.register(module1.value, module1.name);


export default container;

All files which are intended to be consumed this way should be in the Dject-style module configuration and export a name and a value, like the following:

function myModule(
    dependency1,
    dependency2
) {
    // your module code goes here
}

export default {
    name: 'myModule',
    value: myModule
};

Version History

v1.2.0

• Added import DI container automated build, which consumes the configuration generated from added feature in v1.1.0
• Added configuration path option for choosing a different file name than the default (es-module-config.json).

v1.1.0

• Updated default file location to app instead of dependencies for configuration builders
• Introduced configuration construction for ES-Next Module DI container builder -- dject --configure-es-module-builder

v1.0.0

Initial release. Current feature support:

• Help -- dject --help

• Configure Node CommonJS container -- dject --configure-node-commonjs