fix: respect the relative path in base uri (#19)

* support relative path in baseUri

* add tests

* add test case

Author: deleteLater

src/FeatBit.ServerSdk/Events/DefaultEventSender.cs

@@ -18,7 +18,7 @@ internal partial class DefaultEventSender : IEventSender
         private static readonly TimeSpan DefaultTimeout = DefaultConnectTimeout + DefaultReadTimeout;
 
         private readonly Uri _eventUri;
-        private const string EventPath = "/api/public/insight/track";
+        private const string EventPath = "api/public/insight/track";
         private readonly int _maxAttempts;
         private readonly TimeSpan _retryInterval;
 

src/FeatBit.ServerSdk/Transport/FbWebSocket.cs

@@ -116,13 +116,8 @@ private WebSocketTransport DefaultWebSocketTransportFactory()
         private static Uri DefaultWebSocketUriResolver(FbOptions options)
         {
             var token = ConnectionToken.New(options.EnvSecret);
-            var webSocketUri = new UriBuilder(options.StreamingUri)
-            {
-                Path = "streaming",
-                Query = $"type=server&token={token}"
-            }.Uri;
-
-            return webSocketUri;
+            var websocketUri = new Uri(options.StreamingUri, $"streaming?type=server&token={token}");
+            return websocketUri;
         }
 
         private async Task ReceiveLoop()

tests/FeatBit.ServerSdk.Tests/UriTests.cs

@@ -0,0 +1,22 @@
+namespace FeatBit.Sdk.Server;
+
+public class UriTests
+{
+    // According to the documentation: https://learn.microsoft.com/en-us/dotnet/api/system.uri.-ctor?view=net-6.0#system-uri-ctor(system-uri-system-string)
+    // if the relative part of baseUri is to be preserved in the constructed Uri, 
+    // the baseUri has relative parts (like /api), then the relative part must be terminated with a slash, (like /api/) 
+    [Theory]
+    [InlineData("https://contoso.com/featbit/", "relative", "https://contoso.com/featbit/relative")]
+    [InlineData("https://contoso.com/featbit/", "/relative", "https://contoso.com/relative")]
+    [InlineData("https://contoso.com/featbit/", "relative?type=server", "https://contoso.com/featbit/relative?type=server")]
+    [InlineData("https://contoso.com", "relative", "https://contoso.com/relative")]
+    [InlineData("https://contoso.com", "/relative", "https://contoso.com/relative")]
+    [InlineData("https://contoso.com/", "/relative", "https://contoso.com/relative")]
+    public void CreateUri(string @base, string relative, string expected)
+    {
+        var baseUri = new Uri(@base);
+        var uri = new Uri(baseUri, relative);
+
+        Assert.Equal(expected, uri.ToString());
+    }
+}