hw3 first half done

ng1/server.js

@@ -16,6 +16,7 @@ app.get('/api/contacts', getContacts);
 app.get('/api/contacts/:id', getContact);
 app.post('/api/contacts', addContact);
 app.put('/api/contacts/:id', changeContact);
+app.post('/api/contacts/delete', deleteMultibleContact);
 app.delete('/api/contacts/:id', deleteContact);
 
 var contacts = [
@@ -64,14 +65,15 @@ function getContact(req, resp) {
 
 function addContact(req, resp) {
     var contact = req.body;
-
-    contacts.push({
+    var sanitizedContact = {
         "_id": ++lastContactId,
         "name": contact.name,
         "phone": contact.phone
-    })
+    }
 
-    resp.status(201).end("Created");
+    contacts.push(sanitizedContact)
+
+    resp.status(200).json(sanitizedContact);
 }
 
 function changeContact(req, resp) {
@@ -101,3 +103,35 @@ function deleteContact(req, resp) {
     }
     resp.status(404).end("Contact Not Found");
 }
+
+function deleteMultibleContact(req, resp) {
+    var contactIds = req.body;
+    var invalidIds = [];
+
+    while (true){
+        let id = contactIds.pop()
+        if (!id){
+            break;
+        }
+        for (let i=0; i < contacts.length; i++){
+            var contact = contacts[i];
+            if (contact._id == id){
+                contacts.splice(i, 1);
+                id = null;
+            }
+        }
+
+        if (id){
+            invalidIds.push(id);
+        }
+    }
+
+    if(invalidIds.length == 0){
+        resp.status(200).end("Deleted");
+    } else {
+        resp.status(404);
+        resp.json(invalidIds);
+    }
+
+
+}