feat: add JsonSerializerOptions to JsonAsync (microsoft#2817) (micros…

…oft#2818)

src/Playwright.Tests/BrowserContextFetchTests.cs

@@ -772,6 +772,19 @@ record SimpleObject
         public string Foo { get; set; }
     }
 
+    [PlaywrightTest("", "should parse response JSON while passing a type with serializer options")]
+    public async Task ShouldParseResponseJSONWhilePassingATypeWithSerializerOptions()
+    {
+        var response = await Context.APIRequest.GetAsync(Server.Prefix + "/simple.json");
+        var json = await response.JsonAsync<SimpleObject>(new() { PropertyNameCaseInsensitive = true });
+        Assert.AreEqual("bar", json.Foo);
+    }
+
+    record SimplerObject
+    {
+        public string Foo { get; set; }
+    }
+
     [PlaywrightTest("browsercontext-fetch.spec.ts", "should accept bool and numeric params")]
     public async Task ShouldAcceptBoolAndNumericParams()
     {

src/Playwright/API/Supplements/IAPIResponse.cs

@@ -23,11 +23,14 @@
  */
 
 using System;
+using System.Text.Json;
 using System.Threading.Tasks;
 
+#nullable enable
+
 namespace Microsoft.Playwright;
 
 public partial interface IAPIResponse : IAsyncDisposable
 {
-    Task<T> JsonAsync<T>();
+    Task<T?> JsonAsync<T>(JsonSerializerOptions? options = null);
 }

src/Playwright/Core/APIResponse.cs

@@ -29,6 +29,8 @@
 using System.Threading.Tasks;
 using Microsoft.Playwright.Helpers;
 
+#nullable enable
+
 namespace Microsoft.Playwright.Core;
 
 internal class APIResponse : IAPIResponse
@@ -77,7 +79,7 @@ public async Task<byte[]> BodyAsync()
 
     public async Task<JsonElement?> JsonAsync() => JsonSerializer.Deserialize<JsonElement>(await BodyAsync().ConfigureAwait(false));
 
-    public async Task<T> JsonAsync<T>() => JsonSerializer.Deserialize<T>(await BodyAsync().ConfigureAwait(false));
+    public async Task<T?> JsonAsync<T>(JsonSerializerOptions? options) => JsonSerializer.Deserialize<T>(await BodyAsync().ConfigureAwait(false), options);
 
     public async Task<string> TextAsync()
     {