diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..e8c8dbc
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,13 @@
+{
+  "name": "escuelajs-reto-03",
+  "version": "1.0.0",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "xmlhttprequest": {
+      "version": "1.8.0",
+      "resolved": "https://registry.npmjs.org/xmlhttprequest/-/xmlhttprequest-1.8.0.tgz",
+      "integrity": "sha1-Z/4HXFwk/vOfnWX197f+dRcZaPw="
+    }
+  }
+}
diff --git a/package.json b/package.json
index 65a8bf2..dbaa2f1 100644
--- a/package.json
+++ b/package.json
@@ -24,4 +24,4 @@
   "dependencies": {
     "xmlhttprequest": "^1.8.0"
   }
-}
\ No newline at end of file
+}
diff --git a/src/index.js b/src/index.js
index d6fa599..cd759fd 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,32 +1,43 @@
-var XMLHttpRequest = require("xmlhttprequest").XMLHttpRequest;
+const XMLHttpRequest = require("xmlhttprequest").XMLHttpRequest;
 
-var API = 'https://rickandmortyapi.com/api/character/';
-var xhttp = new XMLHttpRequest();
+const API = 'https://rickandmortyapi.com/api/character/';
+const xhttp = new XMLHttpRequest();
 
-function fetchData(url_api, callback) {
-  xhttp.onreadystatechange = function (event) {
-    if (xhttp.readyState === '4') {
+const fetchdata = url_api => new Promise((resolve,reject)=>{
+  xhttp.onreadystatechange =  event => {
+    if (xhttp.readyState === 4) {
       if (xhttp.status == 200)
-        callback(null, xhttp.responseText);
-      else return callback(url_api);
+      {
+        const objectchange = JSON.parse(xhttp.responseText)
+          resolve(objectchange);
+        }
+        
+      else reject (url_api);
     }
   };
   xhttp.open('GET', url_api, false);
   xhttp.send();
-};
+}
+)
+
+let data1
+let data2
+  
+
+fetchdata(API)
+.then((data)=>{console.log(`Primer Llamado...`)
+data1=data
+return  fetchdata (API + data.results[0].id)
+})
+.then((data)=> {console.log(`Segundo Llamado...`)
+data2=data
+return fetchdata (data.origin.url)
+})
+.then ((data3)=> {
+  console.log('Tercero Llamado...')
+  console.log(`Personajes: ${data1.info.count}`);
+  console.log(`Primer Personaje: ${data2.name}`);
+  console.log( `Dimensión: ${data3.dimension}`);
+})
+.catch((error)=> console.error(`Error ${error}`))
 
-fetchData(API, function (error1, data1) {
-  if (error1) return console.error('Error' + ' ' + error1);
-  console.log('Primer Llamado...')
-  fetchData(API + data1.results[0].id, function (error2, data2) {
-    if (error2) return console.error(error1);
-    console.log('Segundo Llamado...')
-    fetchData(data2.origin.url, function (error3, data3) {
-      if (error3) return console.error(error3);
-      console.log('Tercero Llamado...')
-      console.log('Personajes:' + ' ' + data1.info.count);
-      console.log('Primer Personaje:' + ' ' + data2.name);
-      console.log('Dimensión:' + ' ' + data3.dimension);
-    });
-  });
-});
\ No newline at end of file