├── README.md
├── package.json
└── lambda.js


/README.md:
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1 | # Lambda Example
2 | Quick example of using Lambda. I am committing my node_modules folder so it's easy for everyone to pull down and zip up but I do not recommend doing that for when you are committing code to your repository. You should always include it in your .gitignore.
3 | 


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/package.json:
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 1 | {
 2 |   "name": "awstutorialseries",
 3 |   "version": "1.0.0",
 4 |   "description": "Simple lambda example.",
 5 |   "main": "index.js",
 6 |   "scripts": {
 7 |     "test": "echo \"Error: no test specified\" && exit 1"
 8 |   },
 9 |   "author": "Andrew Puch",
10 |   "license": "ISC",
11 |   "dependencies": {
12 |     "request": "^2.74.0",
13 |     "xml2js": "^0.4.17"
14 |   }
15 | }
16 | 


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/lambda.js:
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 1 | 'use strict';
 2 | 
 3 | /**
 4 |  *
 5 |  * Author: Andrew Puch
 6 |  *
 7 |  * Description: In this simple example we are going to parse the RSS feed for 
 8 |  * AWS EC2 East and return the first item in the feeds title. We will console 
 9 |  * log out the content so that the lambda logs can show the respose.
10 |  *
11 |  */
12 | 
13 | var request = require('request'),
14 |     xml     = require('xml2js').parseString;
15 | 
16 | exports.rss = function(event, context, callback) {
17 |     request('http://status.aws.amazon.com/rss/ec2-us-east-1.rss', function (error, response, body) {
18 |         if(!error && response.statusCode == 200) {
19 |             xml(body, { trim : true }, function (error, result) {
20 |                 if(error) {
21 |                     console.log("Error parsing data.");
22 | 
23 |                     // This will be used for when we hook up API Gateway.
24 |                     // It does no harm just being here for the Lambda only tutorial.
25 |                     context.done(null, { message : error });
26 | 
27 |                     return;
28 |                 }
29 | 
30 |                 var content = "\n\nAWS EC2 us-east-1\n";
31 |                 content = content + "-----------------\n";
32 |                 content = content + result.rss.channel[0].item[0].title[0]._ + "\n";
33 | 
34 |                 console.log(content);
35 | 
36 |                 // This will be used for when we hook up API Gateway.
37 |                 // It does no harm just being here for the Lambda only tutorial.
38 |                 context.done(null, { message : result.rss.channel[0].item[0].title[0]._ });
39 | 
40 |                 return;
41 |             });
42 |         } else {
43 |             console.log("Error receiving data.");
44 | 
45 |             // This will be used for when we hook up API Gateway.
46 |             // It does no harm just being here for the Lambda only tutorial.
47 |             context.done(null, { message : error });
48 |         }
49 |     });
50 | };


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