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HasanJaved-DeveloperHasanJaved-Developer
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Login view, controller model, login layout, client side and server side validations added in the web app.
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‎ApiIntegrationMvc/ApiIntegrationMvc.csproj‎

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<Project Sdk="Microsoft.NET.Sdk.Web">
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<PropertyGroup>
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<TargetFramework>net9.0</TargetFramework>
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<Nullable>enable</Nullable>
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<ImplicitUsings>enable</ImplicitUsings>
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</PropertyGroup>
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</Project>

‎ApiIntegrationMvc/Areas/Account/Controllers/LoginController.cs‎

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using ApiIntegrationMvc.Areas.Account.Models;
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using Microsoft.AspNetCore.Mvc;
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namespace ApiIntegrationMvc.Areas.Account.Controllers
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{
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[Area("Account")]
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public class LoginController : Controller
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{
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[HttpGet]
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[ResponseCache(NoStore = true, Location = ResponseCacheLocation.None)]
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public IActionResult Index()
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{
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ViewBag.Error = TempData["Error"]; // one-time error
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return View(new LoginViewModel()); // empty fields
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}
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[HttpPost]
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[ValidateAntiForgeryToken]
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public async Task<IActionResult> Index(LoginViewModel model)
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{
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if (!ModelState.IsValid)
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{
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return View(model);
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}
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if(model.Username == "admin" && model.Password == "123")
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return RedirectToAction("Index", "Home"); // PRG on success too
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TempData["Error"] = "Invalid username or password.";
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return RedirectToAction(nameof(Index)); // ← PRG on failure
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}
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}
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}

‎ApiIntegrationMvc/Areas/Account/Models/LoginViewModel.cs‎

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using System.ComponentModel.DataAnnotations;
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namespace ApiIntegrationMvc.Areas.Account.Models
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{
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public class LoginViewModel
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{
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[Required(ErrorMessage = "Username is required")]
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[StringLength(50)]
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public string Username { get; set; }
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[Required(ErrorMessage = "Password is required")]
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[DataType(DataType.Password)]
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[StringLength(100)]
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public string Password { get; set; }
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}
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}

‎ApiIntegrationMvc/Areas/Account/Views/Login/Index.cshtml‎

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@using ApiIntegrationMvc.Areas.Account.Models
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@model LoginViewModel
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@{
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ViewData["Title"] = "Login";
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}
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<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet" />
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<style>
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/* Page-specific centering */
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.login-container {
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height: 100vh;
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display: flex;
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justify-content: center; /* horizontal */
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align-items: center; /* vertical */
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}
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body {
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margin-bottom: 60px;
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background: linear-gradient(135deg, #f8f9fa, #e9ecef);
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}
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.login-card {
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width: 100%;
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max-width: 400px;
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background: #fff;
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border-radius: 12px;
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box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
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padding: 2rem;
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}
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.login-card h2 {
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font-weight: 600;
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color: #2c3e50;
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}
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.alert {
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border-radius: 8px;
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margin-top: 1rem;
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}
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</style>
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<div class="login-container">
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<div class="login-card text-center">
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<h2 class="mb-4">🔗 Integration Portal</h2>
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<form asp-action="Index" asp-controller="Login" method="post" novalidate>
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@Html.AntiForgeryToken()
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<div asp-validation-summary="ModelOnly" class="alert alert-danger text-start"></div>
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<!-- Username with icon -->
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<div class="input-group mb-3">
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<span class="input-group-text"><i class="bi bi-person"></i></span>
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<input asp-for="Username" class="form-control" placeholder="Username" />
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</div>
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<span asp-validation-for="Username" class="text-danger"></span>
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<!-- Password with icon -->
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<div class="input-group mb-4">
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<span class="input-group-text"><i class="bi bi-lock"></i></span>
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<input asp-for="Password" class="form-control" placeholder="Password" />
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</div>
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<span asp-validation-for="Password" class="text-danger"></span>
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<button type="submit" class="btn btn-primary w-100">
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<i class="bi bi-box-arrow-in-right"></i> Login
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</button>
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</form>
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@if (ViewBag.Error != null)
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{
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<div class="alert alert-danger mt-3">@ViewBag.Error</div>
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}
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</div>
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</div>
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‎ApiIntegrationMvc/Areas/Account/Views/_ViewImports.cshtml‎

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@using ApiIntegrationMvc
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@using ApiIntegrationMvc.Models
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@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers
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@using ApiIntegrationMvc.Areas.Account.Models

‎ApiIntegrationMvc/Areas/Account/Views/_ViewStart.cshtml‎

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@{
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Layout = "~/Views/Shared/_LoginLayout.cshtml"; // or area-specific layout if you want
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}

‎ApiIntegrationMvc/Controllers/HomeController.cs‎

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using ApiIntegrationMvc.Models;
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using Microsoft.AspNetCore.Mvc;
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using System.Diagnostics;
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namespace ApiIntegrationMvc.Controllers
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{
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public class HomeController : Controller
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{
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private readonly ILogger<HomeController> _logger;
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public HomeController(ILogger<HomeController> logger)
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{
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_logger = logger;
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}
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public IActionResult Index()
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{
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return View();
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}
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public IActionResult Privacy()
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{
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return View();
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}
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[ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
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public IActionResult Error()
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{
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return View(new ErrorViewModel { RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier });
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}
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}
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}

‎ApiIntegrationMvc/Models/ErrorViewModel.cs‎

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namespace ApiIntegrationMvc.Models
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{
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public class ErrorViewModel
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{
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public string? RequestId { get; set; }
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public bool ShowRequestId => !string.IsNullOrEmpty(RequestId);
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}
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}

‎ApiIntegrationMvc/Program.cs‎

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var builder = WebApplication.CreateBuilder(args);
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// Add services to the container.
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builder.Services.AddControllersWithViews();
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var app = builder.Build();
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// Configure the HTTP request pipeline.
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if (!app.Environment.IsDevelopment())
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{
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app.UseExceptionHandler("/Home/Error");
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// The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
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app.UseHsts();
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}
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app.UseHttpsRedirection();
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app.UseStaticFiles();
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app.UseRouting();
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app.UseAuthentication();
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app.UseAuthorization();
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app.MapControllerRoute(
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name: "areas",
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pattern: "{area:exists}/{controller=Login}/{action=Index}/{id?}");
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app.MapControllerRoute(
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name: "root_to_login",
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pattern: "",
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defaults: new { area = "Account", controller = "Login", action = "Index" });
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app.Run();

‎ApiIntegrationMvc/Properties/launchSettings.json‎

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{
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"$schema": "https://json.schemastore.org/launchsettings.json",
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"profiles": {
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"http": {
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"commandName": "Project",
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"dotnetRunMessages": true,
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"launchBrowser": true,
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"applicationUrl": "http://localhost:5255",
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"environmentVariables": {
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"ASPNETCORE_ENVIRONMENT": "Development"
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}
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},
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"https": {
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"commandName": "Project",
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"dotnetRunMessages": true,
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"launchBrowser": true,
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"applicationUrl": "https://localhost:7078;http://localhost:5255",
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"environmentVariables": {
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"ASPNETCORE_ENVIRONMENT": "Development"
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}
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}
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}
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}

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