Program.cs

using System.Text;
using DotnetAPI.Data;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.IdentityModel.Tokens;

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddControllers();
// Add services to the container.
// Learn more about configuring OpenAPI at https://aka.ms/aspnet/openapi
//builder.Services.AddOpenApi();
builder.Services.AddEndpointsApiExplorer(); //look for available api endpoints and map them to swagger
builder.Services.AddSwaggerGen();

builder.Services.AddCors((options) =>
{
    options.AddPolicy("DevCors", (corsBuilder) =>
    {
        corsBuilder.WithOrigins("http://localhost:4200", "http://localhost:3000", "http://localhost:8000")
            .AllowAnyMethod()
            .AllowAnyHeader()
            .AllowCredentials();
    });
    options.AddPolicy("ProdCors", (corsBuilder) =>
    {
        corsBuilder.WithOrigins("https://myProductionSite.com")
            .AllowAnyMethod()
            .AllowAnyHeader()
            .AllowCredentials();
    });
});

builder.Services.AddScoped<IUserRepository, UserRepository>();

string? tokenKeyString = builder.Configuration.GetSection("AppSettings:TokenKey").Value;
        
SymmetricSecurityKey tokenKey = new SymmetricSecurityKey(
    Encoding.UTF8.GetBytes(tokenKeyString!=null ? tokenKeyString: ""));

TokenValidationParameters tokenValidationParameters = new TokenValidationParameters()
{
    IssuerSigningKey = tokenKey,
    ValidateIssuer = false,
    ValidateIssuerSigningKey = false,
    ValidateAudience = false,
};

builder.Services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
    .AddJwtBearer(options =>
    {
        options.TokenValidationParameters = tokenValidationParameters;
    });

var app = builder.Build();
 
// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
    app.UseCors("DevCors");
    app.UseSwagger();
    app.UseSwaggerUI();
}
else
{
    app.UseCors("ProdCors");
    app.UseHttpsRedirection();
}

// var app = builder.Build();
//
// // Configure the HTTP request pipeline.
// if (app.Environment.IsDevelopment())
// {
//     app.UseSwagger();
//     app.UseSwaggerUI();
// }
// else
// {
//     app.UseHttpsRedirection();
// }

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

app.MapControllers();

// app.MapGet("/weatherforecast", () =>
// {
//
// })
// .WithName("GetWeatherForecast");

app.Run();