Wednesday, 21 October 2015

Web Data Connectors

Craig Bloodworth

There are many data sources that would help us understand the world around us that are still only exporting .csv so how do you automate these? Web Data Connector

There are resources out there. You need the Simulator and SDK. Don’t be afraid to google and use other people’s code.

The WDC allows you to use a connection that is hosted on a webpage (and been written by someone else) and works just like a Driver for a database.

HTML – the building blocks of the page
CSS – the styling of the page
Javascript – the engine that is running in the background.

In Javascript there are Variables (like a Parameter in Tableau), Objects (a Variable that has many properties) and Functions (the elements that do the work)

HTML DOM – native set of functions to Javascript
J Query – a bit quicker to write

Event Listeners – waiting for certain user actions like a click

Arrays – like a shopping list
AJAX – how to connect to an external web service
JSON – hopefully the data will be in JSON as it is made for Javascript
Loops & Logic – need to be able to loop through those

Recommended read: Javasccript & Jquery by Jon Duckett

Major components: 1. User interface, 2. API interactions & config, 3. Decalre column names and data types, 4. Build data table
Major Compnents in coded order: 1. Declare column  names and data types, 2. build data table, 3. API interactions & config, 4. User interface.

Build through adjusting an existing WDC to help you see the changes you are making to see the effects.


  1. It is really a great work and the way in which you are sharing the knowledge is excellent.Tableau Training in Chennai

    1. Big data is a term that describes the large volume of data – both structured and unstructured – that inundates a business on a day-to-day basis. big data projects for students But it’s not the amount of data that’s important.Project Center in Chennai

      Spring Framework has already made serious inroads as an integrated technology stack for building user-facing applications. Corporate TRaining Spring Framework the authors explore the idea of using Java in Big Data platforms.

      Spring Training in Chennai

      The new Angular TRaining will lay the foundation you need to specialise in Single Page Application developer. Angular Training

  2. Thank you so much for your wonderful concept and truly well post. I appreciative to your sharing and i want more updates from your blog.
    Tableau Course in Bangalore
    Tableau Certification in Bangalore
    Tableau Training Institutes in Bangalore
    Tableau Training in Bangalore
    Tableau Classes in Bangalore

  3. All are saying the same thing repeatedly, but in your blog I had a chance to get some useful and unique information, I love your writing style very much, I would like to suggest your blog in my dude circle, so keep on updates.
    Selenium Training Institute in Chennai
    Best selenium training in chennai
    selenium course in coimbatore
    selenium training
    Selenium Course in Bangalore
    Selenium Classes in Bangalore


  4. This is an awesome post.Really very informative and creative contents. These concept is a good way to enhance the knowledge.I like it and help me to article very well.Thank you for this brief explanation and very nice information.Well, got a good knowledge.

  5. Thanks for posting useful information.You have provided an nice article, Thank you very much for this one. And i hope this will be useful for many people.. and i am waiting for your next post keep on updating these kinds of knowledgeable things...Really it was an awesome article...very interesting to read..please sharing like this information.

    Cpa offers

  6. Thanks for sharing this information.
    Yes Done is the best online site for on demand home services, professional service providers in Jaipur, Rajasthan. We are providing top services like carpenter, cleaning, TV, and many more services at your doorstep in Jaipur, Rajasthan. For more services visit our website.

  7. Thanks for sharing this information.
    Pheeta is the best online shopping sites for Salwar suits for women and woman Kurti online in Jaipur, Rajasthan. To shop more latest fancy and attractive dresses and Kurtas visit us at our website.

  8. Thank you for sharing this information.

    Mediwapp is the best Online Medical Store and a leading Online Medicine store which sells different and most trusted products like Medicines, OTC-Products and other Medicine and Surgery Devices across India.

  9. Thank you for sharing our information.

    Jewellery By Mitali Jain is the best website to buy artificial jewellery online and Jain Jewellery in Jaipur. They sell fancy and attractive products like Earrings, Rings, Necklaces, Headgears, Bracelets, Mask and Glass Chains, Bookmark Jewellery, Gift Cards and many more items like this. And also checkout our new collections Summer Luna Collection and Holy Mess Collection.

  10. This is really amazing blog and like to share Hindustan Tradecom.

    Hindustan Tradecom is the best website where you can open your Demat Account in Jaipur, jodhpur, Bikaner, Kota, Rajasthan. We provide best services opening a Free Deamt Account. We also help you opening Demat Account in Different Banks. For other services like Equity Trading, Commodity trading, Currency Derivatives, Easy-IPOs, Mutual Funds, and many more. Please visit our website.

  11. Thanks for sharing this information

    Shop jewellery from Best Silver Jewellery Designer and Manufacturer in Jaipur , Buy jaipuri bangles online, rajasthani silver jewellery, Latest maang tikka designs, 925 silver earring, Best designer silver pendant necklace, silver kundan jewellery, marhaba jewellery925 silver jewellery wholesale jewellery manufacturers in jaipur is SilverMountain Jaipur.

  12. Wow, what a nice blog. I have read it and really impressed by its writing.
    Meerahini is the best site to buy Jaipur Salwar Suits Online and Hand block Kurta sets. We have straight suit sets, anarkali suit sets, kurta and plazzo sets, and Sharara Sets. We have premium clothing collection of Rang and Utsav.

  13. GIEC GLOBAL is the best education consultant in melbourne. We are formost education consultants in melbourne. We are prime education migration agent in melbourne and best performance education in melbourne. For the study and work in melbourne. Our services are in melbourne as migration and education consultants. we are education agents in Australia and provide education migration services in Australia.

  14. Thanks for sharing this information.
    Yes Done is the best online site for on demand home services, professional service providers in Jaipur, Rajasthan. We are providing top services like carpenter, cleaning, TV, best pest control services in Jaipur, ro repair service in Jaipur, ac repair service in Jaipur online by Yes Done is there for services at your doorstep in Jaipur, Rajasthan. For more service visit our website. For more services visit our website.

  15. Extremely useful case! There is bunches of intimation here that could previously any situation income started further to a well off person to person communication cognizant up assessment. Fifa 19 License Key

  16. I was confining a piece of your substance material irately this site and that I consider this net page is believe it or not steady ! hold while inspiration to setting happening. Regcure Pro Freeware

  17. Charming, notice. I just tracked down your blog and expected to declare that i've esteemed examining your weblog posts. Once more after every one in all degree of part of, I can really get involved with your feed, and that I objective you could form quickly! Special Birthday Wishes For Dad