使用Owin Self-Host ASP.Net API2无法接收带有正文中的数据而非查询字符串的POST请求

Question

I been making a Bot to Receive notification from a Ark: Survival Evolved Game Server and Send them to the Steam account of the player using steam chat system !

well, everything was done greatly with no problem, I tested my work using data sent from a query string, and it works and send the messages etc.

but now that i check using the game server, it won't work.

The Problem, seems to be coming from sending the HTTP POST Request with body content instead of query string as my app will not receive them.

I have made a lot of examples to receive the POST requests but non seems to work, I hope someone here know how to fix this, I lost all hope as i been working on this for over 5 hours and even ask about it in C# SOChat.

Here is my code : https://github.com/LuckyPed/Ark-Steam-Notifier-Console/blob/Post-Data/ArkSteamNotifier/ValuesController.cs

Non of these seems to work :

    public void Post1(string key, ulong steamid, string notetitle, string message)
    {
        if (!Program.settings.UnSub.Contains(steamid))
        {
            SteamID SID = new SteamID(steamid);
            Program.steamFriends.SendChatMessage(SID, EChatEntryType.ChatMsg, System.DateTime.UtcNow + " UTC ( GMT ) : " + notetitle);
            Thread.Sleep(1000);
            Program.steamFriends.SendChatMessage(SID, EChatEntryType.ChatMsg, message);
        }
    }

    public void Post([FromBody]string key,[FromBody]ulong steamid,[FromBody]string notetitle,[FromBody]string message)
    {
        if (!Program.settings.UnSub.Contains(steamid))
        {
            SteamID SID = new SteamID(steamid);
            Program.steamFriends.SendChatMessage(SID, EChatEntryType.ChatMsg, System.DateTime.UtcNow + " UTC ( GMT ) : " + notetitle);
            Thread.Sleep(1000);
            Program.steamFriends.SendChatMessage(SID, EChatEntryType.ChatMsg, message);
        }
    }

    public class MyFormData
    {
        public string Data { get; set; }
    }

    public void Post([FromBody]MyFormData formData)
    {
    }

    public void Post([FromBody]MyData formData)
    {
    }

    public class MyData
    {
        public string key { get; set; }
        public string steamid { get; set; }
        public string message { get; set; }
        public string notetitle { get; set; }
    }

    public void Post(string value)
    {
    }

    public void Post1([FromBody]string value)
    {
    }

Answer 1

Create an object to receive the data in the body:

public class SteamData
{
    public string Key {get; set;}
    public ulong SteamId {get; set;}
    public string NoteTitle {get; set;}
    public string Message {get;set;}
}

Then change your Post method like this:

public void Post([FromBody] SteamData data)
{
    if (!Program.settings.UnSub.Contains(steamid))
    {
        SteamID SID = new SteamID(data.SteamId);
        Program.steamFriends.SendChatMessage(SID, EChatEntryType.ChatMsg, System.DateTime.UtcNow + " UTC ( GMT ) : " + data.NoteTitle);
        Thread.Sleep(1000);
        Program.steamFriends.SendChatMessage(SID, EChatEntryType.ChatMsg, data.Message);
    }
}

Then when the post happens, the data can more easily be in the body of the request. WebAPI has difficulties retrieving more than one parameter with the [FromBody] attribute. You can do it, but it's harder than it is worth.

Hope that helps.