diff --git "a/PULL_REQUEST_TEMPLATE.md\t" "b/PULL_REQUEST_TEMPLATE.md\t"
deleted file mode 100644
index 9a4d861..0000000
--- "a/PULL_REQUEST_TEMPLATE.md\t"
+++ /dev/null
@@ -1,17 +0,0 @@
-## DESCRIPTION
-
-Solución al reto 04 de Escuela de JavaScript
-
-Nombre:
-Usuario Platzi:
-
-## GRUPO
-- [ ] Martes
-- [ ] Miercoles
-- [ ] Jueves
-
-## Reto:
-  - [ ] Primer problema
-  - [ ] Segundo problema
-  - [ ] Tercer problema
-  - [ ] Cuarto Problema (Opcional)
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..0844706
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,13 @@
+{
+  "name": "escuelajs-reto-04",
+  "version": "1.0.0",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "node-fetch": {
+      "version": "2.6.0",
+      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.6.0.tgz",
+      "integrity": "sha512-8dG4H5ujfvFiqDmVu9fQ5bOHUC15JMjMY/Zumv26oOvvVJjM67KF8koCWIabKQ1GJIa9r2mMZscBq/TbdOcmNA=="
+    }
+  }
+}
diff --git a/package.json b/package.json
index bf060d5..b4101bc 100644
--- a/package.json
+++ b/package.json
@@ -20,5 +20,8 @@
   "bugs": {
     "url": "https://github.com/platzi/escuelajs-reto-04/issues"
   },
-  "homepage": "https://github.com/platzi/escuelajs-reto-04#readme"
-}
\ No newline at end of file
+  "homepage": "https://github.com/platzi/escuelajs-reto-04#readme",
+  "dependencies": {
+    "node-fetch": "^2.6.0"
+  }
+}
diff --git a/src/index.js b/src/index.js
index 4c965e7..787a455 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,8 +1,28 @@
-const orders = (time, product, table) => {
+const fetch = require("node-fetch");
+
+const maximo=8000;
+const minimo=1000;
+const randomTime=(maximo, minimo)=>Math.round(Math.random()*(maximo-minimo)+minimo);
+
+const orders = (time,product,table) => {
   console.log(`### Orden: ${product} para ${table}`);
   return new Promise((resolve, reject) => {
+    let Timing=randomTime(maximo, minimo);
+    setTimeout(() => {
+      let working=true;
+      if(working) resolve(`=== Pedido servido: ${product}, tiempo de preparación ${Timing}ms para la ${table}`);
+      else reject(`El pedido no pudo ser preparado`);
+    }, time);
+  });
+}
+
+const pickup_orders = (time, product, table) => {
+  return new Promise((resolve, reject) => {
+    let Timing=randomTime(maximo, minimo);
     setTimeout(() => {
-      resolve(`=== Pedido servido: ${product}, tiempo de preparación ${time}ms para la ${table}`);
+      let working=true;
+      if(working) resolve(`=== Pedido retirado: ${product}, tiempo de retiro ${Timing}ms para la ${table}`);
+      else reject(`El pedido no pudo ser retirado`);
     }, time);
   });
 }
@@ -21,4 +41,66 @@ const waiter = () => {
     .catch((err) => console.error(err));
 };
 
+const waiter2=()=>{
+  pickup_orders(6000, menu.hotdog, table[0])
+    .then((res) =>{
+      console.log(res)
+      return pickup_orders(6000, menu.pizza,table[2])
+    })
+    .then((res) => console.log(res))
+    .catch((err) => console.error(err));
+}
+
+const waiter3=()=>{
+  const pickup_orders2=async()=>{
+    try{
+      order=[menu.hotdog, menu.pizza, menu.hotdog]
+      const promises=order.map((product)=>orders(6000, product, table[1]));
+      const alertpickup=await Promise.all(promises);
+      console.log(alertpickup);
+      console.log(`Los pedidos para la ${table[1]} ya estan listos para ser retirados`);
+      const finalpromises=order.map((product)=>pickup_orders(6000, product, table[1]));
+      const pickup=await Promise.all(finalpromises);
+      console.log(pickup);
+    }catch(error){
+      onerror(error)
+    }
+  }
+  pickup_orders2();
+}
+
+const fetchOrders=async()=>{
+  try{
+  n=0;  
+  let newarrayorder = [];
+  while(n<4){
+    n++;
+    let url = 'https://us-central1-escuelajs-api.cloudfunctions.net/orders';
+    const response = await fetch(url);
+    const commits = await response.json();
+    const answer=commits.data;
+    newarrayorder.push(answer);      
+  }
+  console.log(newarrayorder);
+  const promises=newarrayorder.map((product)=>orders(6000, product, table[3]));
+  const alertpickup=await Promise.all(promises);
+  console.log(alertpickup);
+  console.log(`Los pedidos para la ${table[3]} ya estan listos para ser retirados`);
+  const finalpromises=newarrayorder.map((product)=>pickup_orders(6000, product, table[1]));
+  const pickup=await Promise.all(finalpromises);
+  console.log(pickup);
+  }catch(error){
+      onerror();
+    }
+}
+
+waiter4=()=>{
+  fetchOrders();
+}
+
+const onerror=()=>console.log(`No se pudo retirar los pedidos solicitados`);
+
 waiter();
+waiter2();
+waiter3();
+waiter4();
\ No newline at end of file