Documentation update

Author: github-actions

docs/migrations/migration8/index.html

@@ -1160,6 +1160,33 @@ <h3 id="32-code-classlanguage-textigraphqlbuildervalidateservicescode-added-to-v
         <span class="token class-name"><span class="token keyword">var</span></span> service <span class="token operator">=</span> context<span class="token punctuation">.</span>RequestServices<span class="token operator">!</span><span class="token punctuation">.</span><span class="token generic-method"><span class="token function">GetRequiredService</span><span class="token generic class-name"><span class="token punctuation">&lt;</span>IMyService<span class="token punctuation">></span></span></span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
         <span class="token keyword">return</span> service<span class="token punctuation">.</span><span class="token function">GetMyValue</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
     <span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span></code></pre></div>
+<h3 id="33-added-capability-to-reference-object-graph-types-from-their-implementing-interfaces-850" style="position:relative;"><a href="#33-added-capability-to-reference-object-graph-types-from-their-implementing-interfaces-850" aria-label="33 added capability to reference object graph types from their implementing interfaces 850 permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>33. Added capability to reference object graph types from their implementing interfaces (8.5.0+)</h3>
+<p>GraphQL.NET allows developers to configure object graph types to reference interfaces that they
+implement via the <code class="language-text">Interface&lt;T>()</code> or <code class="language-text">AddResolvedInterface(IInterfaceGraphType type)</code>.
+Alternatively, you may reference the object graph type from the interface by using
+<code class="language-text">AddPossibleType(IObjectGraphType type)</code>. However, this requires a concrete reference to the
+instantiated class rather than just the <code class="language-text">Type</code> to be resolved during schema initialization.</p>
+<p>In version 8.5.0+, you may use <code class="language-text">Type&lt;TObjectType>()</code> or <code class="language-text">Type(Type objectType)</code> to reference
+the object type from the interface type. This matches the same methods already available on
+<code class="language-text">UnionGraphType</code>, unifying the API between unions and interfaces. The new methods will be
+added to <code class="language-text">IAbstractGraphType</code> in version 9, which is implemented by both <code class="language-text">UnionGraphType</code>
+and <code class="language-text">IInterfaceGraphType</code>. For example:</p>
+<div class="gatsby-highlight" data-language="csharp"><pre class="language-csharp"><code class="language-csharp"><span class="token keyword">public</span> <span class="token keyword">class</span> <span class="token class-name">MyInterfaceGraphType</span> <span class="token punctuation">:</span> <span class="token type-list"><span class="token class-name">InterfaceGraphType</span></span>
+<span class="token punctuation">{</span>
+    <span class="token keyword">public</span> <span class="token function">MyInterfaceGraphType</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
+    <span class="token punctuation">{</span>
+        <span class="token generic-method"><span class="token function">Type</span><span class="token generic class-name"><span class="token punctuation">&lt;</span>MyObjectGraphType<span class="token punctuation">></span></span></span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
+        <span class="token generic-method"><span class="token function">Field</span><span class="token generic class-name"><span class="token punctuation">&lt;</span><span class="token keyword">string</span><span class="token punctuation">></span></span></span><span class="token punctuation">(</span><span class="token string">"Name"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
+    <span class="token punctuation">}</span>
+<span class="token punctuation">}</span></code></pre></div>
+<p>For type-first users, a new attribute <code class="language-text">[PossibleType(Type objectType)]</code> has been added which
+can be marked on interface CLR types to reference an object CLR or graph type that the interface
+type implements. For instance:</p>
+<div class="gatsby-highlight" data-language="csharp"><pre class="language-csharp"><code class="language-csharp"><span class="token punctuation">[</span><span class="token attribute"><span class="token class-name">PossibleType</span><span class="token attribute-arguments"><span class="token punctuation">(</span><span class="token keyword">typeof</span><span class="token punctuation">(</span><span class="token type-expression class-name">MyObject</span><span class="token punctuation">)</span><span class="token punctuation">)</span></span></span><span class="token punctuation">]</span>
+<span class="token keyword">public</span> <span class="token keyword">interface</span> <span class="token class-name">IMyInterface</span>
+<span class="token punctuation">{</span>
+    <span class="token keyword">public</span> <span class="token return-type class-name"><span class="token keyword">string</span></span> Name <span class="token punctuation">{</span> <span class="token keyword">get</span><span class="token punctuation">;</span> <span class="token keyword">set</span><span class="token punctuation">;</span> <span class="token punctuation">}</span>
+<span class="token punctuation">}</span></code></pre></div>
 <h2 id="breaking-changes" style="position:relative;"><a href="#breaking-changes" aria-label="breaking changes permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Breaking Changes</h2>
 <h3 id="1-query-type-is-required" style="position:relative;"><a href="#1-query-type-is-required" aria-label="1 query type is required permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>1. Query type is required</h3>
 <p>Pursuant to the GraphQL specification, a query type is required for any schema.