added server code

.gitignore

@@ -22,3 +22,5 @@
 npm-debug.log*
 yarn-debug.log*
 yarn-error.log*
+
+package-lock.json

index.js

@@ -0,0 +1,62 @@
+const express = require("express");
+const cors = require("cors");
+const app = express();
+const mysql = require("mysql");
+
+const GET_ALL_PETS_QUERY = "SELECT * FROM pet;";
+const ADD_PET_QUERY = "INSERT INTO pet (name, age, description, owner_id, species_id) VALUES (req.body.name, req.body.age, " +
+    "req.body.description, req.body.owner_id, req.body.species_id)";
+
+const connection = mysql.createConnection({
+   host: 'localhost',
+   user: 'root',
+   password: '',
+   database: 'petsitting'
+});
+
+connection.connect(err => {
+  if (err) {
+      return err;
+  }
+});
+
+app.use(cors());
+
+app.get('/', (req, res) => {
+
+});
+
+app.post('/pets/add', function(req, res) {
+    console.log("here")
+    connection.query(ADD_PET_QUERY, (err, results) => {
+        if (err) {
+            return res.send(err)
+        } else {
+            console.log(results);
+            return res.json({
+                data: results
+            })
+        }
+    })
+
+
+});
+
+app.get("/pets", (req, res) => {
+    console.log("at /pets hurr")
+    connection.query(GET_ALL_PETS_QUERY, (err, results) => {
+        if (err) {
+            return res.send(err)
+        } else {
+            return res.json({
+                data: results
+            })
+        }
+    })
+});
+
+
+
+app.listen(4000, () => {
+    console.log("potato on port 4000");
+});