static void Main(string[] args)
{
if (args.Length == 0)
throw new ArgumentException("Must provide a path to the .cs output file.");
var codePath = args[0];
using (var writer = new CodeWriter(codePath)) {
writer
.WriteLine("// This file was auto-generated by Flurl.Http.CodeGen. Do not edit directly.")
.WriteLine()
.WriteLine("using System.Collections.Generic;")
.WriteLine("using System.IO;")
.WriteLine("using System.Net.Http;")
.WriteLine("using System.Threading;")
.WriteLine("using System.Threading.Tasks;")
.WriteLine("using Flurl.Http.Content;")
.WriteLine("")
.WriteLine("namespace Flurl.Http")
.WriteLine("{")
.WriteLine("public static class HttpExtensions")
.WriteLine("{");
WriteExtensionMethods(writer);
writer
.WriteLine("}")
.WriteLine("}");
}
}
private static void WriteExtensionMethods(CodeWriter writer) {
foreach (var xm in ExtensionMethodModel.GetAll()) {
writer.WriteLine("/// <summary>");
var summaryStart = (xm.ExtentionOfType == "FlurlClient") ? "Sends" : "Creates a FlurlClient from the URL and sends";
writer.WriteLine("/// @0 an asynchronous @1 request.", summaryStart, xm.HttpVerb.ToUpperInvariant());
writer.WriteLine("/// </summary>");
if (xm.BodyType != null)
writer.WriteLine("/// <param name=\"data\">Contents of the request body.</param>");
if (xm.HasCancelationToken)
writer.WriteLine("/// <param name=\"cancellationToken\">A cancellation token that can be used by other objects or threads to receive notice of cancellation.</param>");
writer.WriteLine("/// <returns>A Task whose result is @0.</returns>", xm.ReturnTypeDescription);
var args = new List<string>();
args.Add("this " + xm.ExtentionOfType + (xm.ExtentionOfType == "FlurlClient" ? " client" : " url"));
if (xm.BodyType != null)
args.Add((xm.BodyType == "String" ? "string" : "object") + " data");
if (xm.HasCancelationToken)
args.Add("CancellationToken cancellationToken");
writer.WriteLine("public static Task<@0> @1@2(@3) {", xm.TaskArg, xm.Name, xm.IsGeneric ? "<T>" : "", string.Join(", ", args));
if (xm.ExtentionOfType == "FlurlClient") {
if (xm.BodyType != null) {
writer.WriteLine("var content = new Captured@0Content(@1);",
xm.BodyType,
xm.BodyType == "String" ? "data" : string.Format("client.Settings.{0}Serializer.Serialize(data)", xm.BodyType));
}
args.Clear();
args.Add(xm.HttpVerb == "Patch" ? "new HttpMethod(\"PATCH\")" : "HttpMethod." + xm.HttpVerb); // there's no HttpMethod.Patch
if (xm.BodyType != null)
args.Add("content: content");
if (xm.HasCancelationToken)
args.Add("cancellationToken: cancellationToken");
var client = (xm.ExtentionOfType == "FlurlClient") ? "client" : "new FlurlClient(url, false)";
var receive = (xm.DeserializeToType == null) ? "" : string.Format(".Receive{0}{1}()", xm.DeserializeToType, xm.IsGeneric ? "<T>" : "");
writer.WriteLine("return @0.SendAsync(@1)@2;", client, string.Join(", ", args), receive);
}
else {
writer.WriteLine("return new FlurlClient(url, false).@0(@1);",
xm.Name + (xm.IsGeneric ? "<T>" : ""),
string.Join(", ", args.Skip(1).Select(a => a.Split(' ').Last())));
}
writer.WriteLine("}").WriteLine();
}
}
private static void WriteExtensionMethods(CodeWriter writer)
{
string name = null;
foreach (var xm in HttpExtensionMethod.GetAll())
{
var hasRequestBody = (xm.HttpVerb == "Post" || xm.HttpVerb == "Put" || xm.HttpVerb == "Patch" || xm.HttpVerb == null);
if (xm.Name != name)
{
Console.WriteLine($"writing {xm.Name}...");
name = xm.Name;
}
writer.WriteLine("/// <summary>");
var summaryStart = (xm.ExtentionOfType == "IFlurlRequest") ? "Sends" : "Creates a FlurlRequest from the URL and sends";
if (xm.HttpVerb == null)
{
writer.WriteLine("/// @0 an asynchronous request.", summaryStart);
}
else
{
writer.WriteLine("/// @0 an asynchronous @1 request.", summaryStart, xm.HttpVerb.ToUpperInvariant());
}
writer.WriteLine("/// </summary>");
if (xm.ExtentionOfType == "IFlurlRequest")
{
writer.WriteLine("/// <param name=\"request\">The IFlurlRequest instance.</param>");
}
if (xm.ExtentionOfType == "Url" || xm.ExtentionOfType == "string")
{
writer.WriteLine("/// <param name=\"url\">The URL.</param>");
}
if (xm.HttpVerb == null)
{
writer.WriteLine("/// <param name=\"verb\">The HTTP method used to make the request.</param>");
}
if (hasRequestBody)
{
if (xm.RequestBodyType == "Json")
{
writer.WriteLine("/// <param name=\"data\">An object representing the request body, which will be serialized to JSON.</param>");
}
else if (xm.RequestBodyType != null)
{
writer.WriteLine("/// <param name=\"data\">Contents of the request body.</param>");
}
else
{
writer.WriteLine("/// <param name=\"content\">Contents of the request body.</param>");
}
}
writer.WriteLine("/// <param name=\"cancellationToken\">The token to monitor for cancellation requests.</param>");
writer.WriteLine("/// <param name=\"completionOption\">The HttpCompletionOption used in the request. Optional.</param>");
writer.WriteLine("/// <returns>A Task whose result is @0.</returns>", xm.ReturnTypeDescription);
var args = new List <string>();
args.Add("this " + xm.ExtentionOfType + (xm.ExtentionOfType == "IFlurlRequest" ? " request" : " url"));
if (xm.HttpVerb == null)
{
args.Add("HttpMethod verb");
}
if (xm.RequestBodyType != null)
{
args.Add((xm.RequestBodyType == "String" ? "string" : "object") + " data");
}
else if (hasRequestBody)
{
args.Add("HttpContent content");
}
// http://stackoverflow.com/questions/22359706/default-parameter-for-cancellationtoken
args.Add("CancellationToken cancellationToken = default(CancellationToken)");
args.Add("HttpCompletionOption completionOption = HttpCompletionOption.ResponseContentRead");
writer.WriteLine("public static Task<@0> @1@2(@3) {", xm.TaskArg, xm.Name, xm.IsGeneric ? "<T>" : "", string.Join(", ", args));
if (xm.ExtentionOfType == "IFlurlRequest")
{
args.Clear();
args.Add(
xm.HttpVerb == null ? "verb" :
xm.HttpVerb == "Patch" ? "new HttpMethod(\"PATCH\")" : // there's no HttpMethod.Patch
"HttpMethod." + xm.HttpVerb);
if (xm.RequestBodyType != null || hasRequestBody)
{
args.Add("content: content");
}
args.Add("cancellationToken: cancellationToken");
args.Add("completionOption: completionOption");
if (xm.RequestBodyType != null)
{
writer.WriteLine("var content = new Captured@0Content(@1);",
xm.RequestBodyType,
xm.RequestBodyType == "String" ? "data" : $"request.Settings.{xm.RequestBodyType}Serializer.Serialize(data)");
}
var request = (xm.ExtentionOfType == "IFlurlRequest") ? "request" : "new FlurlRequest(url)";
var receive = (xm.ResponseBodyType == null) ? "" : string.Format(".Receive{0}{1}()", xm.ResponseBodyType, xm.IsGeneric ? "<T>" : "");
writer.WriteLine("return @0.SendAsync(@1)@2;", request, string.Join(", ", args), receive);
}
else
{
writer.WriteLine("return new FlurlRequest(url).@0(@1);",
xm.Name + (xm.IsGeneric ? "<T>" : ""),
string.Join(", ", args.Skip(1).Select(a => a.Split(' ')[1])));
}
writer.WriteLine("}").WriteLine();
}
foreach (var xtype in new[] { "Url", "string" })
{
foreach (var xm in UrlExtensionMethod.GetAll())
{
if (xm.Name != name)
{
Console.WriteLine($"writing {xm.Name}...");
name = xm.Name;
}
writer.WriteLine("/// <summary>");
writer.WriteLine($"/// {xm.Description}");
writer.WriteLine("/// </summary>");
writer.WriteLine("/// <param name=\"url\">The URL.</param>");
foreach (var p in xm.Params)
{
writer.WriteLine($"/// <param name=\"{p.Name}\">{p.Description}</param>");
}
writer.WriteLine("/// <returns>The IFlurlRequest.</returns>");
var argList = new List <string> {
$"this {xtype} url"
};
argList.AddRange(xm.Params.Select(p => $"{p.Type} {p.Name}" + (p.Default == null ? "" : $" = {p.Default}")));
writer.WriteLine($"public static IFlurlRequest {xm.Name}({string.Join(", ", argList)}) {{");
writer.WriteLine($"return new FlurlRequest(url).{xm.Name}({string.Join(", ", xm.Params.Select(p => p.Name))});");
writer.WriteLine("}");
}
}
}