Create an Asp.NET Core Web API Project

Assuming you have Visual Studio 2019 or Visual Studio 2022 installed, follow these steps to create a new ASP.NET Core Project

• Open the visual studio (IDE).
• Click on the “Create new project” option.
• Choose “ASP.NET Core Web API” from the list of available templates.
• Click the Next button.
• The configure a new project, specify the name and location of your project.
• Click the “Next” button.
• Then select .Net Core as the runtime and choose the version from the dropdown list at the top.
• Make sure to uncheck the checkboxes for “Enable Docker Support” and “Configure for HTTPS” since we won’t be using authentication.
• Click the “Create” button

Install the JwtBearer NuGet Package

Add the “Microsoft.AspNetCore.Authentication.JwtBearer” NuGet package to your project.

• Select the  project Solution in the Explorer window
• Right-click and select “Manage NuGet Packages”
• In the NuGet Package Manager window, search for the “Microsoft.AspNetCore.Authentication.JwtBearer”
• Click on the Install button.

Another way to install the package “Microsoft.AspNetCore.Authentication.JwtBearer”   via Package Manager Console

PM> Install-Package Microsoft.AspNetCore.Authentication.JwtBearer

Specify a Secret Key in the appsettings.json file

Add the following information in the appettings.json file.

 "JWT": {
   "key": "YouSecreteKeyforAuthenticationtovalidateApplication",
   "Issuer": "reactconf.org",
   "Audience": "reactconf.org"
 },

Configure JWT  authentication in the Program.cs file

using dotNet8CRUDWebAPI.Services;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.IdentityModel.Tokens;
using System.Text;

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.


builder.Services.AddAuthentication(option =>
{
    option.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
    option.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
    option.DefaultScheme = JwtBearerDefaults.AuthenticationScheme;
}).AddJwtBearer(opt =>
{
    opt.TokenValidationParameters = new TokenValidationParameters
    {
     ValidIssuer = builder.Configuration["Jwt:Issuer"],
     ValidAudience= builder.Configuration["Jwt:Audience"],
     IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(builder.Configuration["Jwt:Key"])),
     ValidateIssuer=true,
     ValidateAudience=true,
     ValidateLifetime=false,
     ValidateIssuerSigningKey=true

    };
});
    
    
    
   
builder.Services.AddControllers();

builder.Services.AddSingleton<IDepartment,DepartmentServices>();
var app = builder.Build();

// Configure the HTTP request pipeline.


app.UseHttpsRedirection();

app.UseAuthentication();
app.UseAuthorization();

app.MapControllers();

app.Run();

Create a User Model in ASP.NET Core

For storing the login credentials of the users, we need to create a class named Login in the Model folder.

namespace dotNet8CRUDWebAPI.Model
{
    public class Login
    {
        public string username {  get; set; }
        public string password { get; set; }
    }
}

Generate JWT Tokens

We are Creating another controller named “TokenGenerate”  to generate and validate the JWT. Create action method “Post”,  this method generated token in response to an initial request to the API, then use it for authorization in all subsequent requests.

using dotNet8CRUDWebAPI.Model;
using Microsoft.AspNetCore.DataProtection.KeyManagement;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Identity.Data;
using Microsoft.AspNetCore.Mvc;
using Microsoft.IdentityModel.Tokens;
using System.IdentityModel.Tokens.Jwt;
using System.Security.Claims;
using System.Text;

namespace dotNet8CRUDWebAPI.Controllers
{
    [Route("api/[controller]")]
    [ApiController]
    public class TokenGenerateController : ControllerBase
    {
        private readonly IConfiguration _configuration;
        //private SymmetricSecurityKey _key;
       

        public TokenGenerateController(IConfiguration configuration)
        {
            _configuration = configuration;
           
        }
        [HttpPost]
        public IActionResult Post(Login  loginRequest)
        {
            if (loginRequest.username == "Admin" || loginRequest.password == "Passw0rd")
            {
                var issuer = _configuration["Jwt:Issuer"];
                var audience = _configuration["Jwt:Audience"];
                var _key =  Encoding.ASCII.GetBytes(_configuration["Jwt:Key"]);


                var tokenDescriptor = new SecurityTokenDescriptor
                {
                    Subject = new ClaimsIdentity(new[]
                    {
                        new Claim("Id",Guid.NewGuid().ToString()),
                        new Claim(JwtRegisteredClaimNames.Sub, loginRequest.username),
                        new Claim(JwtRegisteredClaimNames.Email, loginRequest.username),
                        new Claim(JwtRegisteredClaimNames.Jti,Guid.NewGuid().ToString())
                   }),

                    Expires = DateTime.UtcNow.AddMinutes(10),
                    Issuer = issuer,
                    Audience = audience,
                    SigningCredentials = new SigningCredentials(new SymmetricSecurityKey(_key), SecurityAlgorithms.HmacSha256Signature)
                };



                var tokenHandler = new JwtSecurityTokenHandler();
                var token = tokenHandler.CreateToken(tokenDescriptor);
                var jwttoken = tokenHandler.WriteToken(token);
                var stringToken = tokenHandler.WriteToken(token);
                return Ok(stringToken);
            }


            return Ok("Unauthorized");
        }
    }
}

Handling Authorization Checks

To handle authorization checks, you can use the [Authorize] attribute on controller and actions method.

namespace dotNet8CRUDWebAPI.Controllers
{
    [Authorize]
    [Route("api/[controller]")]
    [ApiController]
    public class DepartmentController : ControllerBase
    {
        private readonly IDepartment _department;

        public DepartmentController(IDepartment department)
        {
           _department = department;
        }

        [HttpGet]
        public IActionResult Get([FromQuery] bool? isActive=null)
        {
            return Ok(_department.GetAllList(isActive));
        }
   }
}

Now simply run the application or press F5 to run

Generate Token

Authorization Checks

See More: .NET 8: How to make API faster in Asp.Net Core

The post Implement JWT Authentication and Authorization in ASP.NET Core appeared first on Tech Insights.

Why Redis Cache?

Before we implementation of  Redis Cache, let’s understand why we need Redis Cache. In any application, fetching data from the database or any other different resources is a time-consuming process. To improve this, we use caching.

Redis Cache stores the frequently accessed data in-memory and retrieves it at a much faster rate compared to traditional databases.

Create an Asp.NET Core Web API Project

Assuming you have Visual Studio 2019 or Visual Studio 2022 installed, follow these steps to create a new ASP.NET Core Project

• Open the visual studio (IDE).
• Click on the “Create new project” option.
• Choose “ASP.NET Core Web API” from the list of available templates.
• Click the Next button.
• The configure a new project, specify the name and location of your project.
• Click the “Next” button.
• Then select .Net Core as the runtime and choose the version from the dropdown list at the top.
• Make sure to uncheck the checkboxes for “Enable Docker Support” and “Configure for HTTPS” since we won’t be using authentication.
• Click the “Create” button

Install Redis

Install Redis Cache using NuGet Package or run the following command in Package Manager Console.

PM>Install-Package Microsoft.Extensions.Caching.StackExchangeRedis -prerelease

Implement distributed Caching?

Open the Program.cs file and configure.

using dotNet8CRUDWebAPI.Services;

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.

builder.Services.AddControllers();

builder.Services.AddOutputCache(option => option.DefaultExpirationTimeSpan = TimeSpan.FromMinutes(10))
    .AddStackExchangeRedisCache(opt =>
    {
        opt.InstanceName = "TodosWebAPI";
        opt.Configuration = "localhost";
    }
    );


var app = builder.Build();

// Configure the HTTP request pipeline.

app.UseOutputCache();
app.UseHttpsRedirection();

app.UseAuthorization();

app.MapControllers();

app.Run();

Create a Model

namespace dotNet8CRUDWebAPI.Model
{
    public class TodoUserList
    {
        public int userId {  get; set; }
        public int id { get; set; }
        public string title { get; set; }
        public bool completed { get; set; }
    }
}

Create a Controller

Open the controller create action method and Add the [OutputCache] attribute.

using dotNet8CRUDWebAPI.Model;
using dotNet8CRUDWebAPI.Services;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.OutputCaching;

namespace dotNet8CRUDWebAPI.Controllers
{
    [Route("api/[controller]")]
    [ApiController]
    public class DepartmentController : ControllerBase
    {

        [HttpGet("GetDatafromOtherSource")]
        [OutputCache]
        public async Task<IActionResult> GetDatafromOtherSource()
        {
            using var httpClient = new HttpClient();
            var response = await httpClient.GetFromJsonAsync<TodoUserList[]>("https://jsonplaceholder.typicode.com/todos");
            return Ok(response); 
        }
    }
}

Now simply run the application or press F5 to run

As you can see, caching has allowed us to reduce the response time all the way down to 1.2 s.  that’s all I have to say for now, I hope you found this information helpful.

See More: .NET 8: ASP.Net Core Web API CRUD Operations

The post .NET 8: How to make API faster in Asp.Net Core appeared first on Tech Insights.

What is an API?

• API stands for Application Programming Interface.
• API is a software intermediary that allows different software applications to communicate and exchange data.

What is RESTful API?

1. REST stands for Representational State Transfer.
2. REST is a software architecture that imposes conditions on how an API should work.
3. RESTful API is an interface that two computer systems use to exchange information securely over the internet.

Create an Asp.NET Core Web API Project

Assuming you have Visual Studio 2019 or Visual Studio 2022 installed, follow these steps to create a new ASP.NET Core Project

1. Open the visual studio (IDE).
2. Click on the “Create new project” option.
3. Choose “ASP.NET Core Web API” from the list of available templates.
4. Click the Next button.
5. The configure a new project, specify the name and location of your project.
6. Click the “Next” button.
7. Then select .Net Core as the runtime and choose the version from the dropdown list at the top.
8. Make sure to uncheck the checkboxes for “Enable Docker Support” and “Configure for HTTPS” since we won’t be using authentication.
9. Click the “Create” button

Once the project is created, let’s delete the existing WeatherForecast controller and model file.

Let’s create a folder in the project named

• Model
• Services

Right-click on Solution -> Add-> New Folder

Creating a Model

Right-click on Model Folder and select Add then click on New Item then enter class Name (Department.cs) and press the Add button.

namespace dotNet8CRUDWebAPI.Model
{
    public class Department
    {

        public int Id { get; set; }
        public required string DepartmentName { get; set; }
        public string Description { get; set; } = string.Empty;
        public bool IsActive { get; set; } = true;
    }
}

For Adding and updating the department list create another model AddUpdatedepartment.cs

namespace dotNet8CRUDWebAPI.Model
{
    public class AddUpdateDepartment
    {

        public required string DepartmentName { get; set; }
        public string Description { get; set; } = string.Empty;
        public bool IsActive { get; set; } = true;
    }
}

Create Services

Create an interface, Right click on Services Folder select Add, and click on New Item then select an interface and enter Interface Name(IDepartment.cs), and press the Add button.

In the interface, we are going to define business logic.

using dotNet8CRUDWebAPI.Model;

namespace dotNet8CRUDWebAPI.Services
{
    public interface IDepartment
    {
        List<Department> GetAllList(bool? IsActive);
        Department? GetById(int id);
        Department AddDeparement(AddUpdateDepartment DeptObj);
        Department? UpdateDepartment(int id, AddUpdateDepartment DeptObj);
        bool DeleteDepartmentById(int id);

    }
}

Create a concrete class, Right click on Services Folder and select Add, and click on New Item then select the class and enter class Name(DepartmentServices.cs) and press the Add button.

In the concrete class, we are going to implement the interface.

using dotNet8CRUDWebAPI.Model;

namespace dotNet8CRUDWebAPI.Services
{
    public class DepartmentServices : IDepartment
    {
        private readonly List<Department> _departmentList;

        public DepartmentServices()
        {
            _departmentList = new List<Department>()
            {
                new Department()
                {
                    Id = 1,
                    DepartmentName= "Computer Science",
                    Description = "Head of Department",
                    IsActive = true,


                }
            };
        }
        public List<Department> GetAllList(bool? IsActive)
        {
            return IsActive== null ? _departmentList : _departmentList.Where(dept=>dept.IsActive==IsActive).ToList();
        }

        public Department? GetById(int id)
        {
            return _departmentList.FirstOrDefault(dept=>dept.Id==id);
         }


        public Department AddDeparement(AddUpdateDepartment DeptObj)
        {
            var AddDepartment = new Department()
            {
                Id = _departmentList.Max(id=> id.Id) + 1,
                DepartmentName = DeptObj.DepartmentName,
                Description = DeptObj.Description,
                IsActive =DeptObj.IsActive
            };
            _departmentList.Add(AddDepartment);

            return AddDepartment;
        }
              
        
        
        public Department? UpdateDepartment(int id, AddUpdateDepartment DeptObj)
        {
            var Deptindex = _departmentList.FindIndex(idx => idx.Id==id);

            if(Deptindex>0)
            {
                var Dept = _departmentList[Deptindex];
                Dept.DepartmentName = DeptObj.DepartmentName;
                Dept.Description = DeptObj.Description;
                Dept.IsActive = DeptObj.IsActive;

                _departmentList[Deptindex] = Dept;

                return Dept;

            }
            else
            {
                return null;
            }

        }

        public bool DeleteDepartmentById(int id)
        {
            var deptindex = _departmentList.FindIndex(idx => idx.Id == id);
            if (deptindex>0)
            {
                _departmentList.RemoveAt(deptindex);
            }
            return deptindex>0;
        }

    }
}

Creating a  Controller

Create a Controller, Right-click on Controller Folder select Add -> Controller -> API -> API Controller, and enter controller Name (DepartmentController.cs) and press the Add button.

• Open the DepartmentController file
• Create a constructor and inject the IDepartment interface
• Create action methods
• • GET
  • POST
  • PUT
  • Delete

using dotNet8CRUDWebAPI.Model;
using dotNet8CRUDWebAPI.Services;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;

namespace dotNet8CRUDWebAPI.Controllers
{
    [Route("api/[controller]")]
    [ApiController]
    public class DepartmentController : ControllerBase
    {
        private readonly IDepartment _department;

        public DepartmentController(IDepartment department)
        {
           _department = department;
        }

        [HttpGet]
        public IActionResult Get([FromQuery] bool? isActive=null)
        {
            return Ok(_department.GetAllList(isActive));
        }
        [HttpGet]
        [Route("{id}")]
        public  IActionResult Get(int id)
        {
            var dept = _department.GetById(id);
            if (dept == null)
            {
                return NotFound();
            }
            return Ok(dept);

        }

        [HttpPost]
        public IActionResult Post(AddUpdateDepartment obj)
        {
            var dept = _department.AddDeparement(obj);
            if(dept == null)
            {
                return BadRequest();
            }
            return Ok(new
            {
                message = "Deparment Created Successfully...!",
                id = dept!.Id
            });
        }

        [HttpPut]
        [Route("{id}")]
        public IActionResult Put([FromRoute] int id, [FromBody]  AddUpdateDepartment obj)
        {
            var dept = _department.UpdateDepartment(id, obj);
            if (dept == null)
            {
                return NotFound();
            }
            return Ok(new
            {
                message = "Deparement Updated Successfully...!",
                id = dept!.Id
            });
        }

        [HttpDelete]
        [Route("{id}")]
        public IActionResult Delete([FromRoute]int id)
        {
            
            if (!_department.DeleteDepartmentById(id))
            {
                return NotFound();
            }
            return Ok(new {
                message = "Department Deleted Successfully..!",
                id = id
            });
        }
    }
}

Register services

Open the Program.cs file and register IDepartment and DepartmentServices as an AddSingleton.

using dotNet8CRUDWebAPI.Services;

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.

builder.Services.AddControllers();

builder.Services.AddSingleton<IDepartment,DepartmentServices>();
var app = builder.Build();

// Configure the HTTP request pipeline.

app.UseHttpsRedirection();

app.UseAuthorization();

app.MapControllers();

app.Run();

Run the API Project

Get All Department List

Adding a Deparments

Updating Department

Delete a Department

See More: How to Avoid Data Overload in EF Core

The post .NET 8: ASP.Net Core Web API CRUD Operations appeared first on Tech Insights.

In this article, we will learn How to avoid data overload in EF Core, which improves the performance of applications.

It is a common mistake to retrieve the entire entities when only a subset of their properties is needed. This can lead to unnecessary data transfer, increased memory usage, and decreased performance. As you can see in the below code snippet.

           var customer = AppDbContext.Customer.ToList();

            foreach (var cust in customer)
            {
                Console.WriteLine($"{cust.Name} |  {cust.Address} | {cust.Type}");
            }         

To prevent data overload in EF Core, we will use projections to pick just the required fields and avoid retrieving unnecessary fields

 var customer = AppDbContext.Customer
                            .select(c => new { c.Name, c.Address, c.Type })
                            .ToList();

            foreach (var cust in customer)
            {
                Console.WriteLine($"{cust.Name} |  {cust.Address} | {cust.Type}");
            }

This above code snippet reduces the amount of data retrieved from the database minimizes memory usage, and improves the overall performance of your application.

See More: How to Check if a string is numeric in C#

The post How to Avoid Data Overload in EF Core appeared first on Tech Insights.

Create a Console Application

Assuming you have Visual Studio 2019 or Visual Studio 2022 installed, follow these steps to create a new Console Application.

• Open the visual studio (IDE).
• Click on the “Create new project” option.
• Choose “Console App” from the list of available templates.
• Click the Next button.
• The configure a new project, specify the name and location of your project.
• Click the “Next” button.
• Then select .Net Core as the runtime and choose the version from the dropdown list at the top.
• Click the “Create” button

Use TryParse() method to check if a string is a numeric

The TrypParse() method is the simplest way to check if a string is numeric in c#. This method takes in a string and tries to parse it as an integer. If the string is a valid integer, then the method will return true and save the parsed integer value in the out parameter.

string stringvalue = "978912";
int numericvalue;
bool isNumber = int.TryParse(stringvalue, out numericvalue);
if (isNumber == true)
  {
    Console.WriteLine("String contain number");
}
else
{
    Console.WriteLine("String Not contain number");
}

Using Regular Expressions

Regular repression is extremely helpful when checking patterns within a string. And it makes pattern matching more versatile and powerful.

string stringvalue = "901287";
bool isNumber = Regex.IsMatch(stringvalue, @"^\d+$");

if (isNumber == true)
{
    Console.WriteLine("String contain number ");
}
else
{
    Console.WriteLine("String Not contain number");
}

The Regex.IsMatch method to check if the string contains only digits.

See More: Create a Login Form in React TypeScript

The post C#: How to Check if a string is numeric in C# appeared first on Tech Insights.

Discover AI-related conferences, meetings, seminars, workshops, and other events in 2023 and 2024.

We provide detailed information for each event, such as the conference name, date, location, organizer information, and conference program.

See More: React Conference 2023 / 2024

The post AI Conference 2023 / 2024 appeared first on Tech Insights.

Prerequisites

Install Node.js and npm, the standard package manager for javascript.

Creating the React App

Once installed Node.js, create a new React app by running the following command with Vite.

npm create vite@latest

Next, React app project name

√ Project name: ... Login_app

And give the package name

√ Package name: ... reactlogin

Select a Framework

? Select a framework: » – Use arrow keys. Return to submit.

Then select TypeScript

Open the application in vs code. Open the terminal in VS Code and run the following command

npm install

Run the application  npm run dev

Create file Login.tsx and login.css

import { useState } from 'react'
import './Login.css'
import { BrowserRouter as Routers, Routes , Route, Navigate } from 'react-router-dom'
import HomePage from '../Home'
 

// eslint-disable-next-line @typescript-eslint/no-unused-vars
function Login(){

  const [email, setEmail] = useState("")
  const[password, setPassword] = useState("")
  // eslint-disable-next-line @typescript-eslint/no-unused-vars
  const[emailError, setEmailError] = useState("")
  // eslint-disable-next-line @typescript-eslint/no-unused-vars
  const[passwordError,setPasswordError]= useState("")
//  const navigate = useNavigate();

  const onButtonClick = () =>{
    setEmailError("")
    setPasswordError("")

    if("" === email){
      setEmailError("Please enter your email")
      return
    }

    if("" === password)
    {
      setPasswordError("Please enter a password")
      return
    }
    if(password.length<7){
      setPasswordError("password must be 8 character or longer")
      return
    }

    if(!/^[\w-.]+@([\w-]+\.)+[\w-]{2,4}$/.test(email)){
      setEmailError("please enter a vlid email address")
      return
    }
   
    if(email){
      return(
      <>
      {
        <Routers>
          {
          <Routes>
            <Route path='/' element={<HomePage />}>

            </Route>
          </Routes>
    }
        </Routers>
      }
       
      </>
      )
    }else{
      return <Navigate to='/Component/Login/Login'/>
    }
  //navigate("../Home")

  }

    return(
        <div className="login-box">
  <h2>Login</h2>
  <form>
    <div className="user-box">
        <input  
        value={email}
        placeholder='Enter email address here' 
        onChange={ev=> setEmail(ev.target.value)}
        className={"user-box"}      
        
        />
      
      <label className='errorLabel'>{emailError}</label>
    </div>
    <div className="user-box">
      <input 
      value={password}
      placeholder='Enter password here'
      onChange={ev=>setPassword(ev.target.value)}
      className={'user-box'}
      
      />
      <label className='errorLabel'>{passwordError}</label>
    </div>
    <input onClick={onButtonClick}
      className={"inputButton"}
      type="button"      
      value={"Submit"}
    />
  </form>
</div>     
        
)
}

export default Login

Login.css

html {
  height: 100%;
}
body {
  margin:0;
  padding:0;
  font-family: sans-serif;
  background: linear-gradient(#141e30, #446891);
}

.login-box {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 400px;
  padding: 40px;
  transform: translate(-50%, -50%);
  background: rgba(0,0,0,.5);
  box-sizing: border-box;
  box-shadow: 0 15px 25px rgba(0,0,0,.6);
  border-radius: 10px;
}

.login-box h2 {
  margin: 0 0 30px;
  padding: 0;
  color: #fff;
  text-align: center;
}

.login-box .user-box {
  position: relative;
}

.login-box .user-box input {
  width: 100%;
  padding: 10px 0;
  font-size: 16px;
  color: #fff;
  margin-bottom: 30px;
  border: none;
  border-bottom: 1px solid #fff;
  outline: none;
  background: transparent;
}
.login-box .user-box label {
  position: absolute;
  top:0;
  left: 0;
  padding: 10px 0;
  font-size: 16px;
  color: #fff;
  pointer-events: none;
  transition: .5s;
}

.login-box .user-box input:focus ~ label,
.login-box .user-box input:valid ~ label {
  top: -20px;
  left: 0;
  color: #03e9f4;
  font-size: 12px;
}

.login-box form a {
  position: relative;
  display: inline-block;
  padding: 10px 20px;
  color: #03e9f4;
  font-size: 16px;
  text-decoration: none;
  text-transform: uppercase;
  overflow: hidden;
  transition: .5s;
  margin-top: 40px;
  letter-spacing: 4px
}

.login-box a:hover {
  background: #03e9f4;
  color: #fff;
  border-radius: 5px;
  box-shadow: 0 0 5px #03e9f4,
              0 0 25px #03e9f4,
              0 0 50px #03e9f4,
              0 0 100px #03e9f4;
}

.login-box a span {
  position: absolute;
  display: block;
}

.login-box a span:nth-child(1) {
  top: 0;
  left: -100%;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, #03e9f4);
  animation: btn-anim1 1s linear infinite;
}

@keyframes btn-anim1 {
  0% {
    left: -100%;
  }
  50%,100% {
    left: 100%;
  }
}

.login-box a span:nth-child(2) {
  top: -100%;
  right: 0;
  width: 2px;
  height: 100%;
  background: linear-gradient(180deg, transparent, #03e9f4);
  animation: btn-anim2 1s linear infinite;
  animation-delay: .25s
}

@keyframes btn-anim2 {
  0% {
    top: -100%;
  }
  50%,100% {
    top: 100%;
  }
}

.login-box a span:nth-child(3) {
  bottom: 0;
  right: -100%;
  width: 100%;
  height: 2px;
  background: linear-gradient(270deg, transparent, #03e9f4);
  animation: btn-anim3 1s linear infinite;
  animation-delay: .5s
}

@keyframes btn-anim3 {
  0% {
    right: -100%;
  }
  50%,100% {
    right: 100%;
  }
}

.login-box a span:nth-child(4) {
  bottom: -100%;
  left: 0;
  width: 2px;
  height: 100%;
  background: linear-gradient(360deg, transparent, #03e9f4);
  animation: btn-anim4 1s linear infinite;
  animation-delay: .75s
}

@keyframes btn-anim4 {
  0% {
    bottom: -100%;
  }
  50%,100% {
    bottom: 100%;
  }
}

.mainContainer {
  flex-direction: column;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
}

.titleContainer {
  display: flex;
  flex-direction: column;
  font-size: 64px;
  font-weight: bolder;
  align-items: center;
  justify-content: center;
}

.resultContainer, .historyItem { 
  flex-direction: row;
  display: flex;
  width: 400px;
  align-items: center;
  justify-content: space-between;
}

.historyContainer {
  flex-direction: column;
  display: flex;
  height: 200px;
  align-items: center;
  flex-grow: 5;
  justify-content: flex-start;
}

.buttonContainer {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 260px;
}

.inputContainer {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
}

.inputContainer > .errorLabel {
  color: red;
  font-size: 12px;
}

.inputBox {
  height: 48px;
  width: 400px;
  font-size: large;
  border-radius: 8px;
  border: 1px solid grey;
  padding-left: 8px;
}
input[type="button"] {
  border: none;
  background: cornflowerblue;
  color: white;
  padding: 12px 24px;
  margin: 8px;
  font-size: 15px;
  border-radius: 8px;
  cursor: pointer;
}

Open the App.tsx and call the login function

import './App.css'
import Login from './Login'

function MyApp() {

  return (
    <>
    <Login  />     
    </>
  )
}

export default MyApp

Run the application

npm run dev

See More: React Conference 2023 / 2024

The post Create a Login Form in React TypeScript appeared first on Tech Insights.

See More: How Generative AI Impact on Software Engineering

The post React Conference 2023 / 2024 appeared first on Tech Insights.

AI Coding Assists Integration

Popular development environments like IntelliJ, Android Studio, Visual Studio, and Eclipse now seamlessly integrate GitHub Copilot and Amazon Code Whisperer.

These AI assistants can generate code based on prompts. And make code restructuring and transformation easier, they are increasing developer productivity.

Testing with Generative AI

Using generative AI techniques to generate test cases. Evaluating the performance and quality of code is a field that is gaining popularity. These tools allow for richer interactions between analysts and software engineers. And go beyond the capabilities of typical static analysis tools.

Code Interaction with LLMs

Software engineers are interacting with code in novel ways with LLMs: they are looking for summaries, verifying that coding standards are being followed, and having talks about particular factors like performance, safety, or security.

Human Knowledge in Relationships with Generative AI

 It is important to recognize that in these kinds of situations, the knowledge and skills of seasoned software developers are still necessary to avoid relying too much on generative AI techniques. Software engineers can now investigate solutions and improve them iteratively because of the increased interactivity.

Advantages of Generative AI

The advantages of generative AI go beyond improving code-related activities across the software lifecycle. It also provides extra benefits for software engineering practitioners.

Aside from coding, software engineers are involved in a variety of responsibilities such as attending meetings, reviewing documentation, and interacting with stakeholders.

Generative AI is skilled at supporting people in doing these tasks more efficiently and accurately, leading to the improvement of quality and efficiency in government software purchase efforts.

Important Points

The importance of people in the generative AI process emphasizes the importance of competent software and systems engineers, as well as subject matter experts, in spotting mistakes and retaining critical context.

Even as generative AI technologies provide considerable new possibilities, human skills remain indispensable.

See More: Key Concepts and Best Practices of React

The post How Generative AI Impact on Software Engineering appeared first on Tech Insights.

Declarative UI in React

React uses a declarative paradigm that makes it easier for developers to create and maintain complex user interfaces by allowing them to specify the desired state of the UI based on its current data with the specified state in place, react then takes care of the complex task of updating the DOM (Document Object Model).

import { useState} from 'react'

const Counter =() =>{
  const [count,setCount] = useState(0);

  const handleIncrement = () =>{
    setCount(count + 1);
  };

  return (
    <div>
      <h2>Counter: {count}</h2>
      <button onClick={handleIncrement}>Increment</button>
    </div>
  );
};

export default Counter;

Component-Based Architecture

Developers use a component-based architecture to build React Applications. Components are self-contained units that encapsulate a specific piece of functionality. Understanding component structure and composition is essential for developing scalable and maintainable React apps.

//Header.tsx
const Header =()=>{
    return(
        <header>
            <h1>React Apps</h1>
        </header>
    );
};

export default Header;

//SideMenu.tsx

const SideMenu =()=>{
    return(
        <ul>
            <li>Admin</li>
            <li>Trasaction</li>
            <li>Report</li>
        </ul>
    );
};

export default SideMenu;

// App.tsx

import Header from "./Header";
import SideMenu from "./SideMenu";


function App(){

  return (
    <>
    <Header />
    <SideMenu />
    
    </>
  );
}
    

export default App

Functional Components and Hooks

For Defining React components, functional components are now the preferred choice. And functional components may now gracefully manage state and side effects, through the introduction of hooks, such as “useState” and “useEffect”, and Code is now easier to read and maintain.

import { useState, useEffect} from 'react'

const Counter =() =>{
  const [count,setCount] = useState(0);

  useEffect( ()=> {
    document.title = 'Count: ${count}';
  },[count]);

 

  return (
    <div>
      <h2>Counter: {count}</h2>
      <button onClick={()=>  setCount(count+1)}>Counter</button>
    </div>
  );
};

export default Counter;

JSX

JSX is a syntax extension for JavaScript, that enables integrated HTML–like elements into JavaScript code. This not only enhances the expressiveness and readability of React components but is also a powerful tool for creating complex UI structures in a declarative manner.

const JsxComponent =()=>{
    return(
        <div>
            <h1>WelCome , React..!</h1>
            <p>Example of JSX-Powered component.</p>
        </div>
    );

};

export default JsxComponent;

Conclusion

React.js continues to be a powerful and widely adopted library for creating modern user interfaces. developers must become proficient in the newest ideas and industry best practices. In this article, we’ll discuss Key Concepts and Best Practices of React.

The post Key Concepts and Best Practices of React appeared first on Tech Insights.