Royce  Reinger

Royce Reinger

1614575807

Dynamically Add and Remove CanActivate Route Guards in Angular

Every Angular application implements navigation through the Route table. Seasoned Angular developers are aware of how important it is to add guards to a route to secure the path.

There will be times when a developer might require certain flows that uses the same path to not be blocked by a guard on that route. A lot of times most developers accomplish this by adding extra logic in the guard. This is not a bad idea per se, but it means the guard will be hit and activated every time when going through the route, even if it’s not required.

This is where aop-routinglibrary comes in!

This article will explain how to easily update the Angular routing table at runtime to remove or add CanActivate guards on a route during navigation, using the aop-routing library.

As of Angular version 11, there is no native way to dynamically add or remove CanActivate guards during runtime of an application.

If you have not heard of the aop-routing library, read more about it here:  Aop-routing library for Angular

Aop-Routing library provides the capability to perform Imperative and Popstate navigation operations in Angular through the ease of typescript decorators, without the need to import the Angular Router object.

Image for post

Let’s begin by adding the aop-library to our angular application in 3 simple steps:

  1. Install the aop-routing library to your angular application
npm install aop-routing

2. After installing the library add AopRoutingModule to the top level/root module import array of your application.

imports: [
   ...
    AopRoutingModule
  ]

3. Add AopNavigationService dependency into your top level/root module constructor.

export class AppModule {
  constructor(private navigationService: AopNavigationService) {}
 }

#javascript #angular #typescript

What is GEEK

Buddha Community

Dynamically Add and Remove CanActivate Route Guards in Angular

I am Developer

1597489568

Dynamically Add/Remove Multiple input Fields and Submit to DB with jQuery and Laravel

In this post, i will show you how to dynamically add/remove multiple input fields and submit to database with jquery in php laravel framework. As well as, i will show you how to add/remove multiple input fields and submit to database with validation in laravel.

dynamically add remove multiple input fields and submit to database with jquery and laravel app will looks like, you can see in the following picture:

add/remove multiple input fields dynamically with jquery laravel

Laravel - Add/Remove Multiple Input Fields Using jQuery, javaScript

Follow the below given easy step to create dynamically add or remove multiple input fields and submit to database with jquery in php laravel

  • Step 1: Install Laravel App
  • Step 2: Add Database Details
  • Step 3: Create Migration & Model
  • Step 4: Add Routes
  • Step 5: Create Controller by Artisan
  • Step 6: Create Blade View
  • Step 7: Run Development Server

https://www.tutsmake.com/add-remove-multiple-input-fields-in-laravel-using-jquery/

#laravel - dynamically add or remove input fields using jquery #dynamically add / remove multiple input fields in laravel 7 using jquery ajax #add/remove multiple input fields dynamically with jquery laravel #dynamically add multiple input fields and submit to database with jquery and laravel #add remove input fields dynamically with jquery and submit to database #sql

I am Developer

1597489654

Laravel - Dynamically Add or Remove Input Fields

In this post, i will share with you how to dynamically add/remove input fields in laravel forms.

As well as, dynamically add/remove input field and save data to database laravel.

Laravel – Add/remove input field Dynamically with Jquery

Dynamically add/remove input fields using submit form with jQuery ajax with validation and store fields into database in laravel:

  1. Step 1: Install Laravel App
  2. Step 2: Add Database Details
  3. Step 3: Create Migration & Model
  4. Step 4: Add Routes
  5. Step 5: Create Controller by Artisan
  6. Step 6: Create Blade View
  7. Step 7: Run Development Server

https://www.tutsmake.com/laravel-dynamically-add-or-remove-input-fields-jquery/

#dynamically add input fields and save data to database laravel #laravel - dynamically add or remove input fields using jquery #add/remove input fields dynamically with jquery laravel #add remove input fields dynamically with jquery and submit to database in laravel

Marcelle  Smith

Marcelle Smith

1594451700

Angular Route Guard: Implement Route Guard in Angular 10

Angular route guard allows us to grant or remove access to certain parts of the navigation. Another route guard, the CanDeactivate guard, even enable you to prevent a user from accidentally leaving a component with unsaved changes.

Why we need Angular guards

To prevent unauthorized access to certain parts of our navigation, use route guards in Angular.

The client-side route guards like this are not meant to be a security feature. They won’t prevent a smart user from figuring out a way to get to the protected routes.

Such security should be implemented on the server-side. So you need to develop the logic for the server-side, and based on the response, we will change the routes.

Route guards are instead meant as a way to improve the UX for your apps.

Types of routing guards

Route guards in Angular can prevent users from navigating to parts of an app without authorization.

There are 4 route guards available in Angular.

  1. CanActivate: It controls if a route can be activated.
  2. CanActivateChild: It controls if children of a route can be activated.
  3. CanLoad: It controls if a route can even be loaded. This becomes useful for lazy-loaded feature modules. They won’t also load if the guard returns false.
  4. CanDeactivate: It controls if the user can leave a route. Note that this guard doesn’t prevent the user from closing the browser tab or navigating to a different address. It only prevents actions from within the application itself.

To use route guards, consider using component-less routes as this facilitates guarding child routes.

How to Create Guard Service in Angular

To create a service for your guard, type the following command.

ng generate guard your-guard-name

In your guard class, implement the guard you want to use. The following example uses CanActivate to guard the route.

In your guard class, implement the guard you want to use. The following example uses CanActivate to guard the route.export class YourGuard implements CanActivate {
  canActivate(
    next: ActivatedRouteSnapshot,
    state: RouterStateSnapshot): boolean {
      // your  logic goes here
  }
}

#angular #angular 10 #angular route

Christa  Stehr

Christa Stehr

1598940617

Install Angular - Angular Environment Setup Process

Angular is a TypeScript based framework that works in synchronization with HTML, CSS, and JavaScript. To work with angular, domain knowledge of these 3 is required.

  1. Installing Node.js and npm
  2. Installing Angular CLI
  3. Creating workspace
  4. Deploying your First App

In this article, you will get to know about the Angular Environment setup process. After reading this article, you will be able to install, setup, create, and launch your own application in Angular. So let’s start!!!

Angular environment setup

Install Angular in Easy Steps

For Installing Angular on your Machine, there are 2 prerequisites:

  • Node.js
  • npm Package Manager
Node.js

First you need to have Node.js installed as Angular require current, active LTS or maintenance LTS version of Node.js

Download and Install Node.js version suitable for your machine’s operating system.

Npm Package Manager

Angular, Angular CLI and Angular applications are dependent on npm packages. By installing Node.js, you have automatically installed the npm Package manager which will be the base for installing angular in your system. To check the presence of npm client and Angular version check of npm client, run this command:

  1. npm -v

Installing Angular CLI

  • Open Terminal/Command Prompt
  • To install Angular CLI, run the below command:
  1. npm install -g @angular/cli

installing angular CLI

· After executing the command, Angular CLI will get installed within some time. You can check it using the following command

  1. ng --version

Workspace Creation

Now as your Angular CLI is installed, you need to create a workspace to work upon your application. Methods for it are:

  • Using CLI
  • Using Visual Studio Code
1. Using CLI

To create a workspace:

  • Navigate to the desired directory where you want to create your workspace using cd command in the Terminal/Command prompt
  • Then in the directory write this command on your terminal and provide the name of the app which you want to create. In my case I have mentioned DataFlair:
  1. Ng new YourAppName

create angular workspace

  • After running this command, it will prompt you to select from various options about the CSS and other functionalities.

angular CSS options

  • To leave everything to default, simply press the Enter or the Return key.

angular setup

#angular tutorials #angular cli install #angular environment setup #angular version check #download angular #install angular #install angular cli

Sasha  Roberts

Sasha Roberts

1626823620

Create a generic canDeactivate Guard in Angular

In this video, we will see how to protect a user from leaving a page that has unsaved changes. We will warn the user of the unsaved changes if tries to change the page without first submitting the #form.

We will use #angular reactive forms for the example and we will make use of the #routing feature which is the Deactivate Guard

#angular #guard #angular tutorial #what is angular