Add HttpMethods.Query constant and IsQuery method to ASP.NET Core (#63260)

Author: Copilot

src/Http/Http.Abstractions/src/HttpMethods.cs

@@ -49,6 +49,10 @@ public static class HttpMethods
     /// </summary>
     public static readonly string Put = "PUT";
     /// <summary>
+    /// HTTP "QUERY" method.
+    /// </summary>
+    public static readonly string Query = "QUERY";
+    /// <summary>
     /// HTTP "TRACE" method.
     /// </summary>
     public static readonly string Trace = "TRACE";
@@ -149,6 +153,18 @@ public static bool IsPut(string method)
         return Equals(Put, method);
     }
 
+    /// <summary>
+    /// Returns a value that indicates if the HTTP request method is QUERY.
+    /// </summary>
+    /// <param name="method">The HTTP request method.</param>
+    /// <returns>
+    /// <see langword="true" /> if the method is QUERY; otherwise, <see langword="false" />.
+    /// </returns>
+    public static bool IsQuery(string method)
+    {
+        return Equals(Query, method);
+    }
+
     /// <summary>
     /// Returns a value that indicates if the HTTP request method is TRACE.
     /// </summary>
@@ -175,6 +191,7 @@ string _ when IsDelete(method) => Delete,
         string _ when IsOptions(method) => Options,
         string _ when IsHead(method) => Head,
         string _ when IsPatch(method) => Patch,
+        string _ when IsQuery(method) => Query,
         string _ when IsTrace(method) => Trace,
         string _ when IsConnect(method) => Connect,
         string _ => method

src/Http/Http.Abstractions/src/PublicAPI.Unshipped.txt

@@ -4,3 +4,5 @@ Microsoft.AspNetCore.Http.Metadata.IDisableValidationMetadata
 Microsoft.AspNetCore.Http.ProducesResponseTypeMetadata.Description.get -> string?
 Microsoft.AspNetCore.Http.ProducesResponseTypeMetadata.Description.set -> void
 Microsoft.AspNetCore.Http.Metadata.IProducesResponseTypeMetadata.Description.get -> string?
+static Microsoft.AspNetCore.Http.HttpMethods.IsQuery(string! method) -> bool
+static readonly Microsoft.AspNetCore.Http.HttpMethods.Query -> string!

src/Http/Http.Abstractions/test/HttpMethodslTests.cs

@@ -20,6 +20,7 @@ public void CanonicalizedValue_Success()
                 (new string[] { "CONNECT", "Connect", "connect" }, HttpMethods.Connect),
                 (new string[] { "OPTIONS", "Options", "options" }, HttpMethods.Options),
                 (new string[] { "PATCH", "Patch", "patch" }, HttpMethods.Patch),
+                (new string[] { "QUERY", "Query", "query" }, HttpMethods.Query),
                 (new string[] { "TRACE", "Trace", "trace" }, HttpMethods.Trace)
             };