Single object queries to use include and keys

spec/ParseQuery.spec.js

@@ -2393,4 +2393,44 @@ describe('Parse.Query testing', () => {
       done();
     });
   });
+
+  it('include for specific object', function(done){
+    var child = new Parse.Object('Child');
+    var parent = new Parse.Object('Parent');
+    child.set('foo', 'bar');
+    parent.set('child', child);
+    Parse.Object.saveAll([child, parent], function(response){
+      var savedParent = response[1];
+      var parentQuery = new Parse.Query('Parent');
+      parentQuery.include('child');
+      parentQuery.get(savedParent.id, {
+        success: function(parentObj) {
+          var childPointer = parentObj.get('child');
+          ok(childPointer);
+          equal(childPointer.get('foo'), 'bar');
+          done();
+        }
+      });
+    });
+  });
+
+  it('select keys for specific object', function(done){
+    var Foobar = new Parse.Object('Foobar');
+    Foobar.set('foo', 'bar');
+    Foobar.set('fizz', 'buzz');
+    Foobar.save({
+      success: function(savedFoobar){
+        var foobarQuery = new Parse.Query('Foobar');
+        foobarQuery.select('fizz');
+        foobarQuery.get(savedFoobar.id,{
+          success: function(foobarObj){
+            equal(foobarObj.get('fizz'), 'buzz');
+            equal(foobarObj.get('foo'), undefined);
+            done();
+          }
+        });
+      }
+    })
+  });
+
 });

src/Routers/ClassesRouter.js

@@ -59,7 +59,24 @@ export class ClassesRouter extends PromiseRouter {
 
   // Returns a promise for a {response} object.
   handleGet(req) {
-    return rest.find(req.config, req.auth, req.params.className, {objectId: req.params.objectId})
+    let body = Object.assign(req.body, ClassesRouter.JSONFromQuery(req.query));
+    let options = {};
+    let allowConstraints = ['keys', 'include'];
+
+    for (let key of Object.keys(body)) {
+      if (allowConstraints.indexOf(key) === -1) {
+        throw new Parse.Error(Parse.Error.INVALID_QUERY, 'Improper encode of parameter');
+      }
+    }
+
+    if (typeof body.keys == 'string') {
+      options.keys = body.keys;
+    }
+    if (body.include) {
+      options.include = String(body.include);
+    }
+
+    return rest.find(req.config, req.auth, req.params.className, {objectId: req.params.objectId}, options)
       .then((response) => {
         if (!response.results || response.results.length == 0) {
           throw new Parse.Error(Parse.Error.OBJECT_NOT_FOUND, 'Object not found.');