1 files changed, 19 insertions, 0 deletions
diff --git a/packages/gitbook-core/src/lib/getPayload.js b/packages/gitbook-core/src/lib/getPayload.js
new file mode 100644
index 0000000..2d54b9e
--- /dev/null
+++ b/packages/gitbook-core/src/lib/getPayload.js
@@ -0,0 +1,19 @@
+
+/**
+ * Get the payload for a GitBook page
+ * @param  {String|DOMDocument} html
+ * @return {Object}
+ */
+function getPayload(html) {
+    if (typeof html === 'string') {
+        const parser = new DOMParser();
+        html = parser.parseFromString(html, 'text/html');
+    }
+
+    const script = html.querySelector('script[type="application/payload+json"]');
+    const payload = JSON.parse(script.innerHTML);
+
+    return payload;
+}
+
+module.exports = getPayload;