[got] Allow primitive types in JSON body for POST requests (#27109)

types/got/got-tests.ts

@@ -84,6 +84,22 @@ got.patch('todomvc.com', {hostname: 'todomvc'}).then(response => str = response.
 got.head('todomvc.com', {hostname: 'todomvc'}).then(response => str = response.body);
 got.delete('todomvc.com', {hostname: 'todomvc'}).then(response => str = response.body);
 
+// Allow primitive types as JSON body.
+{
+    got.post('todomvc.com', {
+        json: true,
+        body: 1
+    });
+    got.post('todomvc.com', {
+        json: true,
+        body: null
+    });
+    got.post('todomvc.com', {
+        json: true,
+        body: 'str'
+    });
+}
+
 got.stream('todomvc.com').pipe(fs.createWriteStream('index.html'));
 
 fs.createReadStream('index.html').pipe(got.stream.get('todomvc.com'));

types/got/index.d.ts

@@ -100,7 +100,7 @@ declare namespace got {
     }
 
     interface GotJSONOptions extends GotOptions<string | null> {
-        body?: object;
+        body?: any;
         form?: boolean;
         json: true;
     }