[Sample App] Using HTTP GET to fetch data from a web server

[Dave Smart]

Here's a sample app which does an HTTP Get to fetch data from a public web service:-

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//This sample demonstrates getting a list of UK place names

//within a post code area, using the free geonames.org web service.

//Called when application is started.

function OnStart()

{

    //Create a layout with objects vertically centered.

    lay = app.CreateLayout( "linear", "VCenter,FillXY" );    

    //Create an text edit box for postcode entry. 

    edt = app.CreateTextEdit( "CB1", 0.8 ); 

    lay.AddChild( edt ); 

    //Create a button to send request.

    btn = app.CreateButton( "Get Places", 0.3, 0.1 ); 

    btn.SetMargins( 0, 0.05, 0, 0 ); 

    btn.SetOnTouch( btn_OnTouch ); 

    lay.AddChild( btn ); 

    //Create a text label to show results.

    txt = app.CreateText( "", 0.8, 0.6, "Left,Multiline" ); 

    txt.SetBackColor( "#ff222222" ); 

    txt.SetTextSize( 12 );

    lay.AddChild( txt );

    

    //Add layout to app.    

    app.AddLayout( lay );

}   

//Handle button press.

function btn_OnTouch() 

{ 

  //Send request to remote server.

  var postCode = edt.GetText();

  var url = "http://api.geonames.org/postalCodeLookupJSON?"

        + "postalcode=" + postCode + "&country=UK&username=androidscript";

  SendRequest( url  );

}

//Send an http get request.

function SendRequest( url )

{

    var httpRequest = new XMLHttpRequest();

    httpRequest.onreadystatechange = function() { HandleReply(httpRequest); };  

    httpRequest.open("GET", url, true);

    httpRequest.send(null);

    

    app.ShowProgress( "Loading..." );

}

//Handle the server's reply (a json object).

function HandleReply( httpRequest )

{

    if( httpRequest.readyState==4 )

    {

        //If we got a valid response.

        if( httpRequest.status==200 )

        {

            txt.SetText( "Response: " + httpRequest.status + httpRequest.responseText);

        }

        //An error occurred

        else

            txt.SetText( "Error: " + httpRequest.status + httpRequest.responseText);

    }

  app.HideProgress();

}

[Netpower8]

this sample program for api data fetching... can this be implemented for BOX (www.box.com) ?

thanks for the reply

[Netpower8]

is there a sample program for api data fetching ???... can this be implemented for BOX (www.box.com) ?

like downloading or uploading files to a box acct. (www.box.com)

[Mark Allemang]

this is an example HTTP GET to fetch data....a postal code lookup.

If you want to do this with www.box.com ...just go here for info:  https://developer.box.com/reference/