From b16be4bcce0514324f42fb579a17aac1186b8748 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Patricio=20D=C3=ADaz?= <padiazg@gmail.com>
Date: Sat, 6 Oct 2018 07:52:30 -0400
Subject: [PATCH 1/2] Index.js can handle is handler.js returns a promise
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Signed-off-by: Patricio Díaz <padiazg@gmail.com>
---
 template/node/function/handler.js |  4 ++++
 template/node/index.js            | 23 +++++++++++++++--------
 2 files changed, 19 insertions(+), 8 deletions(-)

diff --git a/template/node/function/handler.js b/template/node/function/handler.js
index 73344f43..a2e0160e 100644
--- a/template/node/function/handler.js
+++ b/template/node/function/handler.js
@@ -3,3 +3,7 @@
 module.exports = (context, callback) => {
     callback(undefined, {status: "done"});
 }
+
+// module.exports = context => new Promise((resolve, reject) => {
+//     resolve(undefined)
+// })
diff --git a/template/node/index.js b/template/node/index.js
index cb9d00d3..e8c2444d 100644
--- a/template/node/index.js
+++ b/template/node/index.js
@@ -8,24 +8,31 @@ const getStdin = require('get-stdin');
 const handler = require('./function/handler');
 
 getStdin().then(val => {
-    handler(val, (err, res) => {
+    const cb = (err, res) => {
         if (err) {
             return console.error(err);
         }
-        if(isArray(res) || isObject(res)) {
+        if (!res) {
+            return;
+        }
+        if(Array.isArray(res) || isObject(res)) {
             console.log(JSON.stringify(res));
         } else {
             process.stdout.write(res);
         }
-    });
+    } // cb ...
+
+    const result = handler(val, cb);
+    if (result instanceof Promise) {
+        result
+            .then(data => cb(undefined, data))
+            .catch(err => cb(err, undefined))
+            ;
+    }
 }).catch(e => {
-    console.error(e.stack);
+     console.error(e.stack);
 });
 
-const isArray = (a) => {
-    return (!!a) && (a.constructor === Array);
-};
-
 const isObject = (a) => {
     return (!!a) && (a.constructor === Object);
 };

From a8c787d7bb718b149db48602b1170c6eb2dad094 Mon Sep 17 00:00:00 2001
From: Patricio Diaz <padiazg@gmail.com>
Date: Sat, 6 Oct 2018 08:44:19 -0400
Subject: [PATCH 2/2] Example for promise returns a valid value

Signed-off-by: Patricio Diaz <padiazg@gmail.com>
---
 .gitignore                        |  3 +++
 template/node/function/handler.js | 12 ++++++------
 2 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/.gitignore b/.gitignore
index 9c47dc29..2ee00be9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,6 @@ build
 .gradle
 .idea
 template
+
+template
+build
diff --git a/template/node/function/handler.js b/template/node/function/handler.js
index a2e0160e..3a26d225 100644
--- a/template/node/function/handler.js
+++ b/template/node/function/handler.js
@@ -1,9 +1,9 @@
 "use strict"
 
-module.exports = (context, callback) => {
-    callback(undefined, {status: "done"});
-}
+//module.exports = (context, callback) => {
+//    callback(undefined, {status: "done"});
+//}
 
-// module.exports = context => new Promise((resolve, reject) => {
-//     resolve(undefined)
-// })
+module.exports = context => new Promise((resolve, reject) => {
+    resolve({status: "promise"})
+})