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@teamteanpm2024/distinctio-voluptate-veritatis

v1.1.3

Published

[![tests](https://github.com/teamteanpm2024/distinctio-voluptate-veritatis/actions/workflows/node.js.yml/badge.svg?event=push)](https://github.com/teamteanpm2024/distinctio-voluptate-veritatis/actions/workflows/node.js.yml) # GENERAL An implementation o

Downloads

13

Maintainers

shivamkalsi2024shivamkalsi2024

Keywords

ESnextaccessibilityES2020ES2023compile lesskoreanbluebirdjavascriptes2017csshttpmiddlewaresymlinksdefinewhichjsdiffprivate datachaiopenconcatMaphasstylestablenested cssfullArrayBuffer.prototype.sliceregular expressionsmonorepotrimLefteditorapollodatastructureslicepush-0characterbusytyped arrayscheme-validationqueueMicrotaskdircircularwatchmimepropertyhttpslanguagecss nestingtoobjectomit.envnpmbyteLengthcurriedclienthigher-ordertypedarraysexecfiltervarTypeBoxpackage managervalidesObject.definePropertypnpm9ECMAScript 2018streams2call-boundserializationES2017pathdayjssomedebugtranspilecode pointsUnderscorestringifierexpressionFloat64ArraysyntaxerrorunicodegetterReflect.getPrototypeOflintfunctionalutilitiesIteratortaskes-shimssafecollection.es6shamobjUint8ClampedArrayjoicryptoformatformYAMLnodeavachannelBigInt64Arraylesscssfilegetintrinsictslibstartkeymodulelimitedparentsthrottlemimetypestc39xdg-openencryptionopenercolorassertfast-deep-copyvariables in cssredux-toolkitapijson-schema-validatoroutputtesterwebsiteonceramdapuretraverselinkstyled-componentstake$.extendequalnegativeinternal slotSetjsmime-dbprivatefromsigtermreadablestreamreact poseansisuperagentloadingauthlinewrapvalidatorECMAScript 2019hooksminimalparentECMAScript 6typaniones7difffindupgetoptserializermkdirsschemeairbnbefficientdefinePropertystringifybcryptStreamjwtwritelastECMAScript 2020promisesappmatchmkdir0deepemojiinspectArray.prototype.flatless mixinsfindhashweaksetextendindicatorassertiongetPrototypeOfpositivenativeMapInt16Arraycommand-linecryptfast-deep-cloneio-tsArray.prototype.flattenmatchescontainsbabelpyyamlRegExp#flagsflatemititerationajaxclassnametypeerrorsequencees2018byteenvajvstringless compilercolourlrubyteOffsetinputcensormatchAllcoreprefixparsereadprototypeoptimistdebuggerexpressHyBistartermkdirptrimexit-coderequestshrinkwrapextensionperformancedeterministicoptimizerWeakMaploggershellwatchFileFloat32ArrayawesomesaucequerystringframerObject.assignjson-schemaeverybddutil.inspectobjecteslinttrimRightcorsArrayBuffertoSortedmruautoprefixerreadableshebangObject.keysAsyncIteratorvestformserror-handlingnamesInt8Arraycolumnsdeep-copyspinnertrimStartoptionduplexlistenerslibphonenumberES2021BigUint64ArrayargsexepreprocessorPushgradients csstostringtagecmascripttelephonepackage.jsonreact-hook-formbootstrap cssTypeScriptchinesewaiteventEmitterObject.valuesharmonyrobustJSONdependencieswalkingutilsreact-testing-librarystructuredClonewatcherdescriptorstestECMAScript 2017fseventscss variablefast-copypipefpbreakuninstallposetoolsargvarraybufferArray.prototype.includesyupwaapiprotofixed-widthECMAScript 5touchdatechromiumurlsregularES2019fantasy-landphoneframeworkrapidsetPrototypeOfnamemochaiterateirqloggingObject.iscommanderperformantArray.prototype.containsassertswrapxssremoveurltapechildfastclonequeryjasminetranspilereslint-plugintypedarrayECMAScript 2016entriesjsonpathgroupBysignalsenumerableastsidecmdqueueartWeakSetargumentsReactiveExtensionsless cssanimationchromeeslintplugincallbinddeleteimmutableWebSocketsendersearchisConcatSpreadablees6less.jsmacosintrinsicieString.prototype.matchAllsorttypesafeObject.fromEntriesmakepackagesruntimeUint32Arraycollectionopensi18nworkerArray.prototype.flatMapform-validationjsonyamlpoint-freeasyncstylesheetuptypescriptglobsetterbabel-corebrowserrandomequalitymovefastcopysignalsortedwindowsPromiseregexdirectorycallboundrgbclasseswatchingprotocol-buffersclijapaneseterminalStyleSheettypeofaccessorconfigurableUint16Arrayless6to5flagsmapstylesschemaRxJScreatetacitpicomatchisArray.prototype.filtertextcolumnnodejsURLSearchParamsinvariantfastsameValueZero__proto__modulesArray.prototype.findLastIndexES2016getfssymlinkconstes5genericsshimparserasciiinferenceconsumeES3logkeyseast-asian-widthfolderbootstrap lessincludessetvariablespreserve-symlinksconcatSymbol.toStringTagES6

Readme

tests

GENERAL

An implementation of Dependency Injection pattern in a way, which enables its usages in a simplest way possible.

[!NOTE] DI decreases interdependence between modules, what leads to simplifying of tests writing and application logic.

Looks as follows:

// Module's dependencies listed as function parameters.

// user_controller.js - a SYNCHRONOUS module:
exports.UserController = ($conf, DataProvider) => { // <--- dependencies are in braces
  // ...
  router.get("/get-some-data", async (req, res, next) => {
    // ...
    const result = await DataProvider.getSomeData();
    // ...
  });
  return router;
}

// data_provider.js - an ASYNCHRONOUS module:
exports.DataProvider = async ($conf) => { // <--- dependencies are in braces
  // YOUR PREFERRED DB CONNECTOR
  return connector;
}

// server.js
const express = require("express");
const di      = require("@teamteanpm2024/distinctio-voluptate-veritatis");

di.init((ctx) => {
  ctx.registerOne(require(process.env.APP_CONFIG_PATH), "$conf");
  ctx.registerAll(require("./data_provider"));
  ctx.registerAll(require("./user_controller"));
  return ctx.invoke();
  // use an object destruction to get a list of specific modules here, when needed
}).then(({ $conf, UserController }) => { // <----
  const server = express();
  // ...
  server.use("/user", UserController);
  // ...
  server.listen($conf.server.port, () => {
    console.log(`Server is listening at ${$conf.server.port} port.`);
  });
});

EXAMPLE

A runnable working example could be found here.

USAGE

@teamteanpm2024/distinctio-voluptate-veritatis exposes next 4 functions to the end user:

To define a dependency, create a function and export it under any name. Names MUST be unique among each other.

1) SYNCHRONOUS DEPENDENCY:

exports.SomeModule = () => { /**/ }

2) ASYNCHRONOUS DEPENDENCY:

exports.SomeModule = async () => { /**/ }

// or

exports.SomeModule = () => {
  // ...
  return new Promise((resolve, reject) => { /**/ });
}

[!NOTE] If a function returns a Promise, it will be automatically converted into async dependency.

3) SETTING DEPENDENCIES LIST:

To define module's dependencies, list them as typical function parameters, assuming they are defined in the same way, described already above. They can have a list of it's own dependencies too:

exports.Module_A = (Module_B, Module_C, ... Module_N) => { /**/ }

4) MULTIPLE DEPENDENCIES IN A SINGLE FILE:

There is nothing special about this, since it is a plain Node.js export:

exports.Module_A = (Module_C, Module_B) => { /**/ }
exports.Module_B = (Module_C) => { /**/ }
exports.Module_C = () => { /**/ }

5) CONTEXT BUILD UP:

const di = require("@teamteanpm2024/distinctio-voluptate-veritatis");

di.init((ctx) => {
  ctx.registerAll(require("./some_module_1"));
  ctx.registerAll(require("./some_module_2"));
  return ctx.invoke();
}).then((ctx) => {
  // ...
});

di.init resolves with an object which provides an access to all registered modules. An object destruction could be applied for receiving a list of specific modules:

di.init((ctx) => {
  // ...
  return ctx.invoke();
}).then(({ module_1, modul_2, module_n }) => {});

[!NOTE] Before returning a result, ctx.invoke() will wait for all asynchronous dependencies to resolve.

6) ANONYMOUS MODULE EXPORT:

It is also possible to register an anonymous function or an object, but a name of a module MUST be set additionally. For this purpose serves registerOne:

// module_a.js
module.exports = () => { /**/ }

// index.js
di.init((ctx) => {
  ctx.registerOne(require("./module_a"), "MyModule");
  return ctx.invoke();
}).then((ctx) => {
  // ...
});

MODULE API

init(callback): Promise

/**
 * @param { Function } callback - A function to provide a context with.
 *
 * @returns Must return a result(Promise) of *** invoke *** call.
*/

registerAll(dependencies): undefined

/**
 * @param { Object } dependencies - An map of dependencies.
 *
 * @returns undefined.
*/

registerOne(dependency, name): undefined

/**
 * @param { Object } dependency - A single dependency map.
 * @param { String } name - A module name to set.
 *
 * @returns undefined.
*/

invoke(): Promise

/**
 * @returns A Promise, which resolves with DI context object.
*/