fix(enrolling): change email address as required field

Also improve some logging and update nuget package dependency

Author: ratanparai

src/Services/Enrolling/Enrolling.API/Application/Validations/EnrollmentApplicationCommandValidator.cs

@@ -9,7 +9,7 @@ public class EnrollmentApplicationCommandValidator
         public EnrollmentApplicationCommandValidator()
         {
             RuleFor(application => application.Name).NotEmpty();
-            RuleFor(application => application.Email).EmailAddress();
+            RuleFor(application => application.Email).NotEmpty().EmailAddress();
             RuleFor(application => application.Mobile).NotEmpty();
         }
     }

src/Services/Enrolling/Enrolling.API/Enrolling.API.csproj

@@ -32,7 +32,7 @@
     <PackageReference Include="Serilog.Sinks.Seq" Version="4.0.0" />
 
     <!-- Swagger -->
-    <PackageReference Include="Swashbuckle.AspNetCore" Version="5.5.0" />
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="5.5.1" />
 
     <!-- Need this package for generating migration files -->
     <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="3.1.5">

src/Services/Enrolling/Enrolling.API/IWebHostExtensions.cs

@@ -21,7 +21,7 @@ public static IHost MigrateDbContext<TContext>(this IHost webHost, Action<TConte
 
                 try
                 {
-                    logger.LogInformation($"Migrating database associated with context { typeof(TContext).Name}");
+                    logger.LogInformation("Migrating database associated with context {ContextName}", typeof(TContext).Name);
 
                     var retry = Policy.Handle<SqlException>()
                         .WaitAndRetry(new TimeSpan[]

src/Services/Enrolling/Enrolling.API/Startup.cs

@@ -46,6 +46,10 @@ public void ConfigureServices(IServiceCollection services)
                 });
 
             services.AddControllers()
+                .AddJsonOptions(options =>
+                {
+                    options.JsonSerializerOptions.IgnoreNullValues = true;
+                })
                 .AddFluentValidation(fv =>
                     fv.RegisterValidatorsFromAssemblyContaining<EnrollmentApplicationCommandValidator>());