public static string GetMethodDetails(HttpController controller, HttpEndpoint endpoint, bool async, bool raw)
{
var cancellationToken = endpoint.GetRequestModifiers().OfType <CancellationTokenModifier>().SingleOrDefault();
var clientDependency = new ClientDependency($"I{Settings.ClientInterfaceName}Wrapper");
var requestModifiers = endpoint.GetRequestModifiers().ToList();
var bodyParameter = endpoint.GetBodyParameter();
string bodyVariable = bodyParameter?.Name ?? "null";
var responseTypes = endpoint.GetResponseTypes();
var routeConstraints = endpoint.GetRouteConstraints(controller);
return
($@"{string.Join(Environment.NewLine, routeConstraints.Select(WriteRouteConstraint).NotNull())}
{GetEndpointInfoVariables(controller, endpoint)}
string url = $@""{GetRoute(controller, endpoint, async)}"";
HttpResponseMessage response = null;
response = {GetAwait(async)}HttpOverride.GetResponseAsync({GetHttpMethod(endpoint.HttpType)}, url, null, {cancellationToken.Name}){GetAsyncEnding(async)};
if(response == null)
{{
try
{{
response = {GetAwait(async)}{clientDependency.GetDependencyName($"I{Settings.ClientInterfaceName}")}.{nameof(IClientWrapper.ClientWrapper)}
.Request(url)
{string.Join($" {Environment.NewLine}", requestModifiers.Select(WriteRequestModifiers).NotNull())}
.AllowAnyHttpStatus()
{GetHttpMethod(endpoint)}
{GetAsyncEnding(async)};
}}
catch({nameof(FlurlHttpException)} fhex)
{{
{WriteResponseType(responseTypes.OfType<ExceptionResponseType>().Single(), async, false)}
{WriteErrorActionResultReturn(endpoint, async, raw)}
}}
{GetAwait(async)}HttpOverride.OnNonOverridedResponseAsync({GetHttpMethod(endpoint.HttpType)}, url, {bodyVariable}, response, {cancellationToken.Name}){GetAsyncEnding(async)};
}}
{string.Join(Environment.NewLine, responseTypes.Where(x => x.GetType() != typeof(ExceptionResponseType)).Select(x => WriteResponseType(x, async, raw)).NotNull())}
{WriteActionResultReturn(endpoint, async, raw)}");
}
private static HttpEndpoint ReadMethodAsHttpEndpoint(HttpController parent, MethodDeclarationSyntax syntax)
{
var attributes = syntax.DescendantNodes().OfType <AttributeListSyntax>().SelectMany(x => x.Attributes).ToList();
var endpoint = new HttpEndpoint(parent);
endpoint.Name = syntax.Identifier.ValueText.CleanMethodName();
endpoint.Virtual = syntax.Modifiers.Any(x => x.Text == "virtual");
endpoint.Override = syntax.Modifiers.Any(x => x.Text == "override");
endpoint.New = syntax.Modifiers.Any(x => x.Text == "new");
//Ignore generator attribute
endpoint.Ignored = attributes.SingleOrDefault(x => x.Name.ToFullString().MatchesAttribute(nameof(NotGeneratedAttribute))) != null;
//Route Attribute
var routeAttribute = attributes.SingleOrDefault(x => x.Name.ToFullString().MatchesAttribute(nameof(RouteAttribute)));
if (routeAttribute != null) //Fetch route from RouteAttribute
{
endpoint.Route = new HttpRoute(routeAttribute.ArgumentList.Arguments.ToFullString().Replace("\"", "").Trim());
}
//HTTP Attribute
var knownHttpAttributes = new List <string>
{
$"{Constants.Http}{HttpAttributeType.Delete}",
$"{Constants.Http}{HttpAttributeType.Get}",
$"{Constants.Http}{HttpAttributeType.Patch}",
$"{Constants.Http}{HttpAttributeType.Post}",
$"{Constants.Http}{HttpAttributeType.Put}",
};
var httpAttribute = attributes.SingleOrDefault(x => knownHttpAttributes.Any(y => x.Name.ToFullString().MatchesAttribute(y)));
if (httpAttribute == null)
{
endpoint.Ignored = true;
}
else
{
var httpType = (HttpAttributeType)Enum.Parse(typeof(HttpAttributeType),
httpAttribute.Name
.ToFullString()
.Replace(Constants.Http, "")
.Replace(Constants.Attribute, ""));
endpoint.HttpType = Helpers.HttpMethodFromEnum(httpType);
}
if (endpoint.Route == null && httpAttribute?.ArgumentList != null) //If Route was never fetched from RouteAttribute or if they used the Http(template) override
{
endpoint.Route = new HttpRoute(httpAttribute.ArgumentList.Arguments.ToFullString().Replace("\"", "").Trim());
}
//Ignore method if it doesn't have a route or http attribute
if (endpoint.Route == null && httpAttribute == null)
{
endpoint.Ignored = true;
return(endpoint);
}
//Obsolete Attribute
var obsoleteAttribute = attributes.SingleOrDefault(x => x.Name.ToFullString().MatchesAttribute(nameof(ObsoleteAttribute)));
if (obsoleteAttribute != null)
{
endpoint.Obsolete = true;
endpoint.ObsoleteMessage = obsoleteAttribute.ArgumentList.Arguments.ToFullString().Replace("\"", "").Trim();
}
//Authorize Attribute
endpoint.IsSecured = attributes.SingleOrDefault(x => x.Name.ToFullString().MatchesAttribute(nameof(AuthorizeAttribute))) != null;
//Response types
var responseTypes = attributes.Where(x => x.Name.ToFullString().MatchesAttribute(nameof(ProducesResponseTypeAttribute)));
var responses = responseTypes.Select(x => new ResponseTypeDefinition(x)).ToList();
responses.Add(new ResponseTypeDefinition(true));
endpoint.ResponseTypes = responses.Select(x => new ResponseType(x.Type, Helpers.EnumParse <HttpStatusCode>(x.StatusValue))).ToList();
var duplicateResponseTypes = endpoint.GetResponseTypes().GroupBy(x => x.Status).Where(x => x.Count() > 1).ToList();
if (duplicateResponseTypes.Any())
{
throw new NotSupportedException($"Endpoint has multiple response types of the same status defined. {string.Join(", ", duplicateResponseTypes.Select(x => x.Key?.ToString()))}");
}
//Add after so we don't get duplicate error from the null Status
endpoint.ResponseTypes.Add(new ExceptionResponseType());
var parameters = syntax.ParameterList.Parameters.Select(x => new ParameterDefinition(x, endpoint.GetFullRoute(parent))).ToList();
var routeParams = parameters.Where(x => x.Options.FromRoute).Select(x => new RouteParameter(x.RouteName, x.Type, x.Default)).ToList();
var queryParams = parameters.Where(x => x.Options.FromQuery).Select(x => new QueryParameter(x.Options.QueryName, x.Type, x.Default, x.Options.QueryObject)).ToList();
var bodyParams = parameters.Where(x => x.Options.FromBody).Select(x => new BodyParameter(x.Name, x.Type, x.Default)).SingleOrDefault();
endpoint.Parameters = routeParams.Cast <IParameter>().Union(queryParams).Union(new List <IParameter> {
bodyParams
}).NotNull().ToList();
endpoint.Parameters.Add(new CancellationTokenModifier());
endpoint.Parameters.Add(new CookieModifier());
endpoint.Parameters.Add(new HeadersModifier());
endpoint.Parameters.Add(new TimeoutModifier());
if (endpoint.IsSecured)
{
endpoint.Parameters.Add(new SecurityModifier());
}
var parameterHeaders = attributes.Where(x => x.Name.ToFullString().MatchesAttribute(nameof(HeaderParameterAttribute)))
.Select(x => new ParameterHeaderDefinition(x))
.ToList();
endpoint.ParameterHeader = parameterHeaders.Select(x => new ParameterHeader(x.Name, x.Type, x.DefaultValue)).ToList();
var headers = attributes.Where(x => x.Name.ToFullString().MatchesAttribute(nameof(IncludeHeaderAttribute)))
.Select(x => new HeaderDefinition(x))
.ToList();
endpoint.ConstantHeader = headers.Select(x => new ConstantHeader(x.Name, x.Value)).ToList();
var rawReturnType = syntax.ReturnType?.ToFullString();
HashSet <string> returnContainerTypes = new HashSet <string>()
{
typeof(ValueTask).FullName,
typeof(Task).FullName,
typeof(ActionResult).FullName
};
var returnType = Helpers.GetTypeFromString(rawReturnType.Trim());
while (returnContainerTypes.Any(x => Helpers.IsType(x, returnType?.Name)))
{
returnType = returnType.Arguments.SingleOrDefault();
}
if (Helpers.IsType(typeof(IActionResult).FullName, returnType?.Name))
{
returnType = null;
}
if (returnType?.Name == "void" ||
(Helpers.IsType(typeof(Task).FullName, returnType?.Name) && (!returnType?.Arguments.Any() ?? false)))
{
returnType = null;
}
HashSet <string> fileResults = new HashSet <string>()
{
nameof(PhysicalFileResult),
nameof(FileResult),
nameof(FileContentResult),
nameof(FileStreamResult),
nameof(VirtualFileResult)
};
if (fileResults.Any(x => Helpers.IsType(x, returnType?.Name)))
{
returnType = new Helpers.TypeString(typeof(Stream).FullName);
endpoint.ReturnsStream = true;
}
rawReturnType = returnType?.ToString();
endpoint.ReturnType = rawReturnType;
var duplicateParameters = endpoint.GetParametersWithoutResponseTypes().GroupBy(x => x.Name).Where(x => x.Count() > 1).ToList();
if (duplicateParameters.Any())
{
throw new NotSupportedException($"Endpoint has multiple parameters of the same name defined. {string.Join(", ", duplicateParameters.Select(x => x.Key?.ToString()))}");
}
return(endpoint);
}
