I have two applications running together at the same time. I was trying to find a way to be able to use TempData
in my own type of class and after reading it I implemented it in my Middleware for my MVC project which works smoothly. However, when I copy the Middleware code from my MVC project to my Middleware for my asp.net web api project it does not work. When I run the programs together, and when it calls the web api project it returns the following the web api (MVC works fine I do not get any errors on that):
InvalidOperationException: Unable to resolve service for type 'Microsoft.AspNetCore.Mvc.ViewFeatures.ITempDataDictionaryFactory' while attempting to activate 'AddressService.API.Middleware.CorrelationIdMiddleware'.
Before I implemented TempData (ITempDataDictionaryFactory
) in the middleware of my web api project it worked fine... but after implementing ITempDataDictionaryFactory
to it, it gives me that error. Is there something I have to do in order for it to work like it does in my Middleware for my MVC project?
Middleware
in my web api project:
public class CorrelationIdMiddleware
{
private readonly RequestDelegate _next;
private readonly ILogger _logger;
private readonly ITempDataDictionaryFactory _tempDataDictionaryFactory;
public CorrelationIdMiddleware(RequestDelegate next, ILoggerFactory loggerFactory, ITempDataDictionaryFactory tempDataDictionaryFactory)
{
_next = next;
_logger = loggerFactory.CreateLogger<CorrelationIdMiddleware>();
_tempDataDictionaryFactory = tempDataDictionaryFactory;
}
public async Task Invoke(HttpContext context)
{
string correlationId = null;
string userName;
string ipAddress;
var tempData = _tempDataDictionaryFactory.GetTempData(context);
var key = context.Request.Headers.Keys.FirstOrDefault(n => n.ToLower().Equals("x-correlation-id"));
if (!string.IsNullOrWhiteSpace(key))
{
correlationId = context.Request.Headers[key];
_logger.LogInformation("Header contained CorrelationId: {@CorrelationId}", correlationId);
}
else
{
if (tempData.ContainsKey("username") && tempData.ContainsKey("ipaddress"))
{
userName = tempData.Peek("username").ToString();
ipAddress = tempData.Peek("ipaddress").ToString();
context.Response.Headers.Append("X-username", userName);
context.Response.Headers.Append("X-ipAddress", ipAddress);
}
correlationId = Guid.NewGuid().ToString();
_logger.LogInformation("Generated new CorrelationId: {@CorrelationId}", correlationId);
}
context.Response.Headers.Append("x-correlation-id", correlationId);
using (LogContext.PushProperty("CorrelationId", correlationId))
{
await _next.Invoke(context);
}
}
CorrelationIdExtensions.cs
(use to call app.UseCorrelationId()
in startup):
public static class CorrelationIdExtensions
{
public static IApplicationBuilder UseCorrelationId(this IApplicationBuilder builder)
{
return builder.UseMiddleware<CorrelationIdMiddleware>();
}
}
Startup.cs
:
public class Startup
{
public Startup(IConfiguration configuration)
{
Configuration = configuration;
}
public IConfiguration Configuration { get; }
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
services.AddControllers();
services.AddSwaggerGen(c =>
{
c.SwaggerDoc("v1", new OpenApiInfo { Title = "AddressService.API", Version = "v1" });
});
services.AddHttpContextAccessor();
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
app.UseCorrelationId();
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
app.UseSwagger();
app.UseSwaggerUI(c => c.SwaggerEndpoint("/swagger/v1/swagger.json", "AddressService.API v1"));
}
app.UseHttpsRedirection();
app.UseRouting();
app.UseAuthorization();
app.UseEndpoints(endpoints =>
{
endpoints.MapControllers();
});
}
}
One of the ways to solve this should be using:
services.AddControllersWithViews();
or
services.AddMvc();
Instead of services.AddControllers();
.