Archie Mistry

Archie Mistry

1609205520

A minimalistic DI (Dependency Injection) container for Dart

klizma

A minimalistic DI (Dependency Injection) container for Dart. Inspired by injector.

import 'package:klizma/klizma.dart';

void main() {
  final di = Klizma();
  di.add(() => Engine('Vroom!'));
  di.add(() => Engine('Whoosh!'), name: 'electric');
  di.add(() => Horn('Honk!'));
  di.add(() => Car(di.get<Engine>(), di.get<Horn>()));
  di.add(() => Car(di.get<Engine>('electric'), di.get<Horn>()), name: 'tesla');

  final car = di.get<Car>();
  /*
  Prints the following:
  =====================
  Engine: Vroom!
  Horn: Honk!
  Car: Vroom! Honk!
  */

  final tesla = di.get<Car>('tesla');
  /*
  Prints the following. Note that the horn is reused:
  =====================
  Engine: Whoosh!
  Car: Whoosh! Honk!
  */

  print(car.sound); // Vroom! Honk!
  print(tesla.sound); // Whoosh! Honk!
}

class Engine {
  Engine(this.sound) {
    print('Engine: $sound');
  }

  final String sound;
}

class Horn {
  Horn(this.sound) {
    print('Horn: $sound');
  }

  final String sound;
}

class Car {
  Car(Engine engine, Horn horn) : sound = '${engine.sound} ${horn.sound}' {
    print('Car: $sound');
  }

  final String sound;
}

Download Details:

Author: f3ath

Source Code: https://github.com/f3ath/klizma

#dart #flutter #mobile-apps

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Buddha Community

A minimalistic DI (Dependency Injection) container for Dart
Archie Mistry

Archie Mistry

1609205520

A minimalistic DI (Dependency Injection) container for Dart

klizma

A minimalistic DI (Dependency Injection) container for Dart. Inspired by injector.

import 'package:klizma/klizma.dart';

void main() {
  final di = Klizma();
  di.add(() => Engine('Vroom!'));
  di.add(() => Engine('Whoosh!'), name: 'electric');
  di.add(() => Horn('Honk!'));
  di.add(() => Car(di.get<Engine>(), di.get<Horn>()));
  di.add(() => Car(di.get<Engine>('electric'), di.get<Horn>()), name: 'tesla');

  final car = di.get<Car>();
  /*
  Prints the following:
  =====================
  Engine: Vroom!
  Horn: Honk!
  Car: Vroom! Honk!
  */

  final tesla = di.get<Car>('tesla');
  /*
  Prints the following. Note that the horn is reused:
  =====================
  Engine: Whoosh!
  Car: Whoosh! Honk!
  */

  print(car.sound); // Vroom! Honk!
  print(tesla.sound); // Whoosh! Honk!
}

class Engine {
  Engine(this.sound) {
    print('Engine: $sound');
  }

  final String sound;
}

class Horn {
  Horn(this.sound) {
    print('Horn: $sound');
  }

  final String sound;
}

class Car {
  Car(Engine engine, Horn horn) : sound = '${engine.sound} ${horn.sound}' {
    print('Car: $sound');
  }

  final String sound;
}

Download Details:

Author: f3ath

Source Code: https://github.com/f3ath/klizma

#dart #flutter #mobile-apps

Getting Started with ASP.NET Core Dependency Injection

I’ve lately been feeling my way around getting an actual, production-ready ASP.NET Core app developed, and one of the features I’ve really been digging (one of many) is native support for Dependency Injection (DI). DI is huge in modern web apps, so making it the default for ASP.NET

#asp.net core #asp.net core dependency injection #dependency #injection #programming

Seamus  Quitzon

Seamus Quitzon

1603763160

ActiveInject. Fast and Lightweight Dependency Injection Library

What is ActiveInject?

ActiveInject is a lightning-fast and powerful dependency injection library. It has a lot of tools and features to offer: support for nested scopes, singletons and transient bindings, modules, multi-threaded, and single-threaded injectors.

At the same time, it’s thoroughly optimized with all the dependencies graph preprocessing performed at startup time. According to the benchmarks, in some scenarios, ActiveInject is 5.5 times faster than Guice and hundreds of times faster than Spring DI. You can check the benchmark sources here.

ActiveInject_ is an independent technology of ActiveJ platform. It has no third-party dependencies on its own and can be used as a stand-alone DI library._

Getting Started

Let’s try the library out and bake some virtual cookies using ActiveInject. A cookie requires the following ingredients: FlourSugar and Butter. These ingredients form a Pastry which can be baked into a Cookie. Assume each of these entities has a POJO. Let’s start with a basic example:

public void provideAnnotation() {
  Module cookbook = new AbstractModule() {
     @Provides
     Sugar sugar() { return new Sugar("WhiteSugar", 10.f); }

     @Provides
     Butter butter() { return new Butter("PerfectButter", 20.0f); }

     @Provides
     Flour flour() { return new Flour("GoodFlour", 100.0f); }

     @Provides
     Pastry pastry(Sugar sugar, Butter butter, Flour flour) {
        return new Pastry(sugar, butter, flour);
     }

     @Provides
     Cookie cookie(Pastry pastry) {
        return new Cookie(pastry);
     }
  };

  Injector injector = Injector.of(cookbook);
  injector.getInstance(Cookie.class).getPastry().getButter().getName());
}

Here we’ve created an AbstractModule named cookbook that contains all the required bindings, or “recipes”, for the ingredients. Call Injector.getInstance method to get an instance of the Cookie.

How does it work from the inside? Injector provides all the required dependencies for the component recursively traversing the dependencies graph in a postorder way. So it first created SugarButter and Flour, the next was Pastry, and finally a Cookie.

#java #dependency injection #java library #dependency injection tutorial

Devan  Johnson

Devan Johnson

1600703700

Laravel 6 Dependency Injection Example | DI In Laravel

Laravel Dependency Injection Tutorial Example is today’s leading topic. We are using Laravel 6 so, and it is a Laravel 6 Dependency Injection TutorialDependency injection is the phrase that necessarily means the class dependencies that are “injected” into a class via a constructor or, in some cases, “setter” methods.

We can inject the classes into another class’s constructor and then get the object of that class, and through that object, we can access its methods and properties.

Laravel Dependency Injection Example

The Service Container in Laravel is a Dependency Injection Container and a Registry for the application.

Laravel Container is a powerful tool for that managing dependencies and stores objects for various purposes; for example; You can store objects and use them in  Facades.

Dependency injection is commonly used in Laravel. Even access to Request, we mostly inject it.

public function __construct(Request $request)

Let us look beneath the surface because I believe that knowing how things work is always better than just memorizing it.

#laravel #dependency injection #di in laravel

Christa  Stehr

Christa Stehr

1602964260

50+ Useful Kubernetes Tools for 2020 - Part 2

Introduction

Last year, we provided a list of Kubernetes tools that proved so popular we have decided to curate another list of some useful additions for working with the platform—among which are many tools that we personally use here at Caylent. Check out the original tools list here in case you missed it.

According to a recent survey done by Stackrox, the dominance Kubernetes enjoys in the market continues to be reinforced, with 86% of respondents using it for container orchestration.

(State of Kubernetes and Container Security, 2020)

And as you can see below, more and more companies are jumping into containerization for their apps. If you’re among them, here are some tools to aid you going forward as Kubernetes continues its rapid growth.

(State of Kubernetes and Container Security, 2020)

#blog #tools #amazon elastic kubernetes service #application security #aws kms #botkube #caylent #cli #container monitoring #container orchestration tools #container security #containers #continuous delivery #continuous deployment #continuous integration #contour #developers #development #developments #draft #eksctl #firewall #gcp #github #harbor #helm #helm charts #helm-2to3 #helm-aws-secret-plugin #helm-docs #helm-operator-get-started #helm-secrets #iam #json #k-rail #k3s #k3sup #k8s #keel.sh #keycloak #kiali #kiam #klum #knative #krew #ksniff #kube #kube-prod-runtime #kube-ps1 #kube-scan #kube-state-metrics #kube2iam #kubeapps #kubebuilder #kubeconfig #kubectl #kubectl-aws-secrets #kubefwd #kubernetes #kubernetes command line tool #kubernetes configuration #kubernetes deployment #kubernetes in development #kubernetes in production #kubernetes ingress #kubernetes interfaces #kubernetes monitoring #kubernetes networking #kubernetes observability #kubernetes plugins #kubernetes secrets #kubernetes security #kubernetes security best practices #kubernetes security vendors #kubernetes service discovery #kubernetic #kubesec #kubeterminal #kubeval #kudo #kuma #microsoft azure key vault #mozilla sops #octant #octarine #open source #palo alto kubernetes security #permission-manager #pgp #rafay #rakess #rancher #rook #secrets operations #serverless function #service mesh #shell-operator #snyk #snyk container #sonobuoy #strongdm #tcpdump #tenkai #testing #tigera #tilt #vert.x #wireshark #yaml