June 2012 presentation on ql.io and working with the system inside Node.js applications.

1. ql.io and Node.js: Next Generation
Open Source Web Querying System
Jonathan LeBlanc
Developer Evangelist: X.commerce
Email: jleblanc@x.com
Twitter: @jcleblanc
Github: github.com/jcleblanc

2. Topics We’ll Be Covering
Overview of ql.io
Language Specifications
Monkey Patching & Enhancements
Integrating Into Your Node Applications
Tools and More

3. Topics We’ll Be Covering
Overview of ql.io
Language Specifications
Monkey Patching & Enhancements
Integrating Into Your Node Applications
Tools and More

4. ql.io: The Problem is API Overload

5. ql.io: Developing for Mobile

6. ql.io: Reducing Workload + Processing
Reduced Documentation
Reduced Code Length
Reduced Result Syncing

7. ql.io: Increasing Performance (Requests)

8. ql.io: Error Handling and Reporting

9. ql.io: Open Standard Foundation

10. ql.io: Using the System
Web Endpoint Standalone Server

11. ql.io: Quering the Web Endpoint
HTTP GET
http://ql.io/q?s=QUERY

12. ql.io: Using the Standalone Server
Data
(internal)
ql.io Node Host
Data
(external)

13. Topics We’ll Be Covering
Overview of ql.io
Language Specifications
Monkey Patching & Enhancements
Integrating Into Your Node Applications
Tools and More

14. Language: Defining a Data Source
Include in Request Include in .ql Table

15. Language: Create Table for Data Source
create table TABLE_NAME
on select get from "http://api.com/?val1={val1}"
using defaults val1="VALUE",
val2="VALUE”;

16. Language: Sample Github Issues Table
create table github.issues
on select get from "https://github.com/api/v2/json/
issues/list/{user}/{repository}/
{state}/"
using defaults state="open";

17. Language: Obtain Data From New Tables
select * from TABLE_NAME
where val1="VALUE"
and val2="VALUE"
limit 10
offset 3;

18. Language: Sample Github Table Call
select * from github.issues
where user="jcleblanc"
and repository="reddit-php-sdk";
{
"comments": 0,
"body": "http://www.phpdoc.org/",
"title": "Use standardized documentation",
"updated_at": "2011/12/11 13:49:07 -0800",
"html_url": "https://github.com/jcleblanc/reddit-php-sdk/issues/3",
"state": "open”
}

19. Language: Insert Request
insert into bitly.shorten (longUrl)
values ('http://ql.io/docs');
"http://bit.ly/uZIvmY"

20. Language: Nested Selects
select ItemID, ViewItemURLForNaturalSearch, Location
from details
where itemId
in (select itemId
from finditems
where keywords='mini cooper');
[
"330730216553",
"http://www.ebay.com/itm/Clubman-Auto-Sunroof-Prem-…",
"Huntingdon Valley, Pennsylvania"
],

21. ql.io: The Test Console
Test Console: http://ql.io/console

22. Language: Including Script Routes
user = "jcleblanc";
slides = select * from slideshare where user="{user}";
twitter = select * from github.users where user="{user}";
return {
"slides": "{slides}",
"twitter": "{twitter}"
}
via route '/social' using method post;

23. Language: Using Script Routes
curl --header "content-type: application/x-www-form-urlencoded"
-d "user=jcleblanc" http://localhost:3000/social

24. Topics We’ll Be Covering
Overview of ql.io
Language Specifications
Monkey Patching & Enhancements
Integrating Into Your Node Applications
Tools and More

25. Patching: Including the Monkey Patch
create table TABLE_NAME
on select get from "http://api.com/?val1={val1}"
using defaults val1="VALUE"
using patch "patch.js";

26. Patching: Validating Input Parameters
exports['validate param'] = function(args, param, value) {
switch(param) {
case 'duration' :
return !isNaN(value - 0)
default:
return true;
}
}

27. Patching: The Body Patch
exports['patch body'] = function() {
return {
type: 'application/json',
content: JSON.stringify({message : 'aok'})
};
}

28. Patching: The Response Patch
exports['patch response'] = function(args){
var body = args.body;
//modify response body
return body;
}

29. Topics We’ll Be Covering
Overview of ql.io
Language Specifications
Monkey Patching & Enhancements
Integrating Into Your Node Applications
Tools and More

30. Node.js: Installing the Package
npm install ql.io-engine

31. Node.js: Including the Engine
var Engine = require('ql.io-engine');
var engine = new Engine({
connection: 'close'
});

32. Node.js: Building the Script

33. Topics We’ll Be Covering
Overview of ql.io
Language Specifications
Monkey Patching & Enhancements
Integrating Into Your Node Applications
Tools and More

34. Tools: API Masher
Visualization Engine:
https://github.com/jcleblanc/api-masher
Technology Backbone
– ql.io
– jQuery
– Mustache Templates

35. Tools: API Masher
var format = “<li><a href=‘{{link}}’ target=‘_blank’>
<img src=‘{{media:content.media:thumbnail.url}}’
width=‘{{media:content.media:thumbnail.width}}’
height=‘{{media:content.media:thumbnail.height}}’ /></a>
<br /><span class=‘small’>
<a href=‘{{link}}’ target=‘_blank’>{{title}}</a></span></li>”;

36. Tools: API Masher
var query = “create table slideshare
on select get from ‘http://www.slideshare.net/rss/user/{user}’
resultset ‘rss.channel’;
select * from slideshare where user=“jcleblanc”
var insertEl = “widgetContainer”;
parser.push(query, format, insertEl);
parser.render();

37. Tools: API Masher Results
Showcase Website: http://jcleblanc.com

38. Tools: External API Tables
Tables Source:
https://github.com/jcleblanc/ql.io-tables

39. ql.io: The Link

40. Thank You!
http://slidesha.re/ql-io-node
Jonathan LeBlanc
Developer Evangelist: X.commerce
Email: jleblanc@x.com
Twitter: @jcleblanc
Github: github.com/jcleblanc