From 1109132f09d75da9a28b649c7677bb6ce07c40c0 Mon Sep 17 00:00:00 2001
From: Peter Bengtsson <mail@peterbe.com>
Date: Tue, 8 Dec 2020 14:41:45 -0500
Subject: initial commit

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+---
+title: Body.json()
+slug: Web/API/Body/json
+translation_of: Web/API/Body/json
+---
+<div>{{APIRef("Fetch API")}}</div>
+
+<p>El método <strong><code>json()</code></strong> de {{DOMxRef("Body")}} recibe un flujo de datos {{DOMxRef("Response")}} y lo lee a término. Devuelve una promesa con el cuerpo del texto transformado a {{JSxRef("JSON")}}.</p>
+
+<h2 id="Sintáxis">Sintáxis</h2>
+
+<pre class="syntaxbox"><em>response</em>.json().then(<em>data</em> =&gt; {
+  // do something with your data
+});</pre>
+
+<h3 id="Parámetros">Parámetros</h3>
+
+<p>No.</p>
+
+<h3 id="Valor_devuelto">Valor devuelto</h3>
+
+<p>Una {{jsxref("Promise")}} que se resuelve a un objeto JavaScript. Este objeto puede ser cualquier cosa que pueda ser representada por JSON (un objeto, un array, una cadena de caracteres, un número...).</p>
+
+<h2 id="Example">Example</h2>
+
+<p>In our <a href="https://github.com/mdn/fetch-examples/tree/master/fetch-json">fetch json example</a> (run <a href="http://mdn.github.io/fetch-examples/fetch-json/">fetch json live</a>), we create a new request using the {{DOMxRef("Request.Request", "Request()")}} constructor, then use it to fetch a <code>.json</code> file. When the fetch is successful, we read and parse the data using <code>json()</code>, then read values out of the resulting objects as you'd expect and insert them into list items to display our product data.</p>
+
+<pre class="brush: js highlight[5]">const myList = document.querySelector('ul');
+const myRequest = new Request('products.json');
+
+fetch(myRequest)
+  .then(response =&gt; response.json())
+  .then(data =&gt; {
+    for (const product of data.products) {
+      let listItem = document.createElement('li');
+      listItem.appendChild(
+        document.createElement('strong')
+      ).textContent = product.Name;
+      listItem.append(
+        ` can be found in ${
+          product.Location
+        }. Cost: `
+      );
+      listItem.appendChild(
+        document.createElement('strong')
+      ).textContent = `£${product.Price}`;
+      myList.appendChild(listItem);
+    }
+  });</pre>
+
+<h2 id="Specifications">Specifications</h2>
+
+<table class="standard-table">
+ <thead>
+  <tr>
+   <th scope="col">Specification</th>
+   <th scope="col">Status</th>
+   <th scope="col">Comment</th>
+  </tr>
+ </thead>
+ <tbody>
+  <tr>
+   <td>{{SpecName("Fetch", "#dom-body-json", "Body.json()")}}</td>
+   <td>{{Spec2("Fetch")}}</td>
+   <td>Initial definition</td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="Browser_compatibility">Browser compatibility</h2>
+
+
+
+<p>{{Compat("api.Body.json")}}</p>
+
+<h2 id="See_also">See also</h2>
+
+<ul>
+ <li><a href="/en-US/docs/Web/API/ServiceWorker_API">ServiceWorker API</a></li>
+ <li><a href="/en-US/docs/Web/HTTP/CORS">Cross-Origin Resource Sharing (CORS)</a></li>
+ <li><a href="/en-US/docs/Web/HTTP">HTTP</a></li>
+</ul>
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