Program.cs

using CRUDOperationUsingWEBAPI.Context;
using CRUDOperationUsingWEBAPI.Data;
using CRUDOperationUsingWEBAPI.Services;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.AspNetCore.Identity;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.FileProviders;
using Microsoft.IdentityModel.Tokens;
using Microsoft.OpenApi.Models;
using System.Text;

var builder = WebApplication.CreateBuilder(args);

var connectionSTring = builder.Configuration.GetConnectionString("StudentDB");
builder.Services.AddDbContext<StudentDBContext>(options => options.UseSqlServer(connectionSTring));
builder.Services.AddScoped<IStudentService, StudentService>();
builder.Services.AddIdentity<Users,IdentityRole>().AddEntityFrameworkStores<StudentDBContext>();
builder.Services.AddSwaggerGen(swagger =>
{
    swagger.SwaggerDoc("v1",
                       new OpenApiInfo
                       {
                           Title = "API Title",
                           Version = "V1",
                           Description = "API Description"
                       });

    var securitySchema = new OpenApiSecurityScheme
    {
        Description = "Authorization header using the Bearer scheme. Example \"Authorization: Bearer {token}\"",
        Name = "Authorization",
        In = ParameterLocation.Header,
        Type = SecuritySchemeType.Http,
        Scheme = "Bearer",
        Reference = new OpenApiReference
        {
            Type = ReferenceType.SecurityScheme,
            Id = "Bearer"
        }
    };
    swagger.AddSecurityDefinition(securitySchema.Reference.Id, securitySchema);
    swagger.AddSecurityRequirement(new OpenApiSecurityRequirement
    {
        {securitySchema,Array.Empty<string>() }
    });
});
builder.Services.AddAuthentication(f =>
{
	f.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
    f.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
}).AddJwtBearer(k =>
{
	var Key = Encoding.UTF8.GetBytes(builder.Configuration["JWT:Key"]);
	k.SaveToken = true;
	k.TokenValidationParameters = new TokenValidationParameters
	{
		ValidateIssuer = true,
		ValidateAudience = true,
		ValidateLifetime = true,
		ValidateIssuerSigningKey = true,
		ValidIssuer = builder.Configuration["JWT:Issuer"],
		ValidAudience = builder.Configuration["JWT:Audience"],
		IssuerSigningKey = new SymmetricSecurityKey(Key),
		ClockSkew = TimeSpan.Zero
	};

});
// Add services to the container.

builder.Services.AddControllers();
// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();

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

app.UseStaticFiles(new StaticFileOptions
{
    FileProvider = new PhysicalFileProvider(
                Path.Combine(Directory.GetCurrentDirectory(), "Images")),
    RequestPath = "/Images"
});

app.UseHttpsRedirection();

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

app.Run();