public static object RunHandler <TIn, TOut>(this NancyModule module, Func <TIn, TOut> handler)
{
try
{
TIn model;
try
{
model = module.BindAndValidate <TIn>();
if (!module.ModelValidationResult.IsValid)
{
return(module.Negotiate.RespondWithValidationFailure(module.ModelValidationResult));
}
}
catch (ModelBindingException)
{
return(module.Negotiate.RespondWithValidationFailure(ModelBindingErrorMessage));
}
return(handler(model));
}
catch (Exception Ex)
{
return(module.Negotiate.RespondWithFailure(Ex));
}
}
public static async Task <object> RunHandlerAsync <TIn>(this NancyModule module, Func <TIn, Task <object> > handler)
{
try
{
TIn model;
try
{
model = module.BindAndValidate <TIn>();
if (!module.ModelValidationResult.IsValid)
{
return(module.Negotiate.RespondWithValidationFailure(module.ModelValidationResult));
}
}
catch (ModelBindingException)
{
return(module.Negotiate.RespondWithValidationFailure(ModelBindingErrorMessage));
}
return(await handler(model).ConfigureAwait(false));
}
catch (Exception Ex)
{
return(module.Negotiate.RespondWithFailure(Ex));
}
}
public static Response Command <T, TU>(this NancyModule module, Func <T, TU> commandHandler)
where TU : Entity
where T : ApiAction
{
var command = module.BindAndValidate <T>();
return(module.Response.AsJson(commandHandler(command))
.WithContentType("application/vnd.siren+json; charset=utf-8"));
}
public static Response Query <T, TU>(this NancyModule module, Func <T, TU> requestHandler, int cachingInSeconds = 0)
where TU : Entity
where T : ApiLink
{
var request = module.BindAndValidate <T>();
return(module.Response.AsJson(requestHandler(request))
.WithContentType("application/vnd.siren+json; charset=utf-8")
.WithHeader("Cache-Control", string.Format("Max-Age={0}", cachingInSeconds)));
}
public static T BindAndValidateModel <T>(this NancyModule module)
{
var result = module.BindAndValidate <T>();
if (!module.ModelValidationResult.IsValid)
{
throw new BadModelException(module.ModelValidationResult);
}
return(result);
}
public static async Task <Negotiator> EvaluateAndBind <TRequest>(this NancyModule module, Func <TRequest, Task <object> > success, HttpStatusCode onSuccessHttpCode = HttpStatusCode.OK) where TRequest : class
{
var request = module.BindAndValidate <TRequest>();
if (!module.ModelValidationResult.IsValid)
{
var errors = MakeError(module.ModelValidationResult);
throw new GenericBadRequest(errors);
}
var result = await success(request);
return(await module.Negotiate.WithStatusCode(onSuccessHttpCode)
.WithModel(result));
}
