DZone Snippets: webservice code

Using Google's API to Access Picasa Albums

stayefeh (Sascha Tayefeh) — Thu, 19 Jun 2008 08:36:37 GMT

Google provides its API in multiple languages. Here is an example that shows how to access a picasa album.

Before you start, you need to download Google's API for .NET. Then copy the files to you project (in the project explorer) in Visual Studio and in the references in the project explorer. Now you can make use of the namespaces:

using Google.GData.Client;
using Google.GData.Photos;



namespace GetPicasaFeed

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

            this.getAtomFeed();

            return;

        }



        private void getAtomFeed()

        {



            // Album query and picasa query are specialized atomfeed classes

            AlbumQuery aQuery = new AlbumQuery(PicasaQuery.CreatePicasaUri("saschatayefeh"));

            PicasaService pService = new PicasaService("PicasaDemo");

            AtomFeed kResultFeed = pService.Query(aQuery);



            foreach (AtomEntry entry in kResultFeed.Entries)

            {

                this.textBox1.AppendText(entry.Title.Text + "\r\n");

                foreach (AtomLink eLink in entry.Links)

                {

                    this.textBox1.AppendText("  " + eLink.HRef.ToString() + "\r\n"); ;

                }

            }

            return;

        }



 

    }

}

Accessing a web service

stayefeh (Sascha Tayefeh) — Thu, 19 Jun 2008 08:23:03 GMT

1. In Visual Studio, add a web reference in the project explorer.

2. Create an class describing an object that represents the web service.



    public class CurrentWeather

    {



        #region attributes



        private String location;

        private String time;

        private String wind;

        private String visibility;

        private String temperature;

        private String dewPoint;

        private String relativeHumidity;

        private String pressure;

        private String status;



        #endregion





        #region properties



        public String Location { get { return this.location; } set { this.location = value; } }

        public String Time { get { return this.time; } set { this.time = value; } }

        public String Wind { get { return this.wind; } set { this.wind = value; } }

        public String Visibility { get { return this.visibility; } set { this.visibility = value; } }

        public String Temperature { get { return this.temperature; } set { this.temperature = value; } }

        public String DewPoint { get { return this.dewPoint; } set { this.dewPoint = value; } }

        public String RelativeHumidity { get { return this.relativeHumidity; } set { this.relativeHumidity = value; } }

        public String Pressure { get { return this.pressure; } set { this.pressure = value; } }

        public String Status { get { return this.status; } set { this.status = value; } }



        #endregion



    }

Use a method like this to call the service



        private void btRead_Click(object sender, EventArgs e)

        {

            net.webservice.www.MyWeather gw = new net.webservice.www.MyWeather ();

            this.lblShowStatus.Text = "Accessing Service";

            this.Refresh();

 

            Objects.CurrentWeather cwo = new Objects.CurrentWeather();

            System.Xml.Serialization.XmlSerializer xs =

                new System.Xml.Serialization.XmlSerializer(typeof(Objects.CurrentWeather));



            // Deserialize

            try

            {

                System.IO.TextReader tr = new System.IO.StringReader(gw.GetWeather(this.tbCity.Text, this.tbCountry.Text));

                cwo = (Objects.CurrentWeather)xs.Deserialize(tr);

                this.lblShowStatus.Text = cwo.Status;

                this.lbShowHumidity.Text = cwo.RelativeHumidity;

                this.lbShowPressure.Text = cwo.Pressure;

                this.lbShowWind.Text = cwo.Wind;

                this.lbShowTemperature.Text = cwo.Temperature;

            }

            catch

            {

                this.lblShowStatus.Text = String.Empty;

                this.lbShowHumidity.Text = String.Empty;

                this.lbShowPressure.Text = String.Empty;

                this.lbShowWind.Text = String.Empty;

                this.lbShowTemperature.Text = String.Empty;

                this.lblShowStatus.Text = "Error";

            }

        }

Get a bible passage from the Living Stones / Seek-First Web Service with Ruby

timmorgan (Tim Morgan) — Wed, 14 Jun 2006 20:53:11 GMT



require 'net/http'



LS_BASE_URL = 'http://www.seek-first.com/Bible.php?q=&passage=Seek'



def lookup_ls(reference, translation) # living stones (KJV, ASV, YLT, AKJV, WEB)

  return if reference.nil? or reference.empty?

  url = LS_BASE_URL + '&p=' + URI.escape(reference) + '&version=' + translation

  result = Net::HTTP.get(URI.parse(url))

  url = //.match(result)[1]

  result = Net::HTTP.get(URI.parse(url)).gsub(/\s+/, ' ').gsub(/â€œ|â€?/, '"').gsub(/â€˜|â€™/, "'").gsub('*', '')

  text = result.scan(/(.+?)<\/Text>/).map { |p| p[0].strip.gsub(/<.+?>/, '') }.join(' ') rescue nil

  return {:reference => reference, :text => text}

end

Get a Bible passage from the ESV Web Service with Ruby

timmorgan (Tim Morgan) — Thu, 18 May 2006 03:24:42 GMT



require 'net/http'



BASE_URL = 'http://www.gnpcb.org/esv/share/get/'

OPTIONS = {

  'key' => 'IP',

  'action' => 'doPassageQuery',

  'include-verse-numbers' => '0',

  'include-short-copyright' => '0',

  'output-format' => 'plain-text',

  'include-passage-horizontal-lines' => '0',

  'include-heading-horizontal-lines' => '0',

  'include-passage-references' => '1',

  'include-first-verse-numbers' => '0',

  'include-footnotes' => '0',

  'include-footnote-links' => '0',

  'include-headings' => '0',

  'include-subheadings' => '0',

  'line-length' => '0',

}



def combine_refs(refs)

  combined = refs.first

  refs[1..-1].each do |ref|

    if combined.index(ref.gsub(/\:.*$/, '')) == 0

      combined += ',' + /\:(.*)$/.match(ref)[1]

    elsif combined.index(ref.gsub(/\d+\:.*$/, '')) == 0

      combined += ';' + /\d+\:.*$/.match(ref)[0]

    else

      return nil # couldn't do it - fail *not* gracefully

    end

  end

  combined

end



def lookup_esv(reference)

  return if reference.nil? or reference.empty?

  url = BASE_URL + '?' + OPTIONS.map { |name, value| "#{name}=#{value}" }.join('&') + '&passage=' + URI.escape(reference)

  result = Net::HTTP.get(URI.parse(url))

  if result =~ /^ERROR/

    puts 'Error retrieving verse from web service'

    nil

  else

    refs = []

    result.scan(/^\S.+$/) {|ref| refs << ref }

    refs.each {|ref| result.gsub! ref, '' }

    reference = combine_refs(refs)

    text = result.gsub(/\s+/, ' ').strip

    text = text.gsub(/"/, '') if (text.count('"') == 1 and text[0..0] == '"')

    return {:reference => reference, :text => text}

  end

end

Usage:



> lookup_esv('John 3:16')

=> {:text=>"For God so loved the world, that he gave his only Son, that whoever

believes in him should not perish but have eternal life.", :reference=>"John 3:16"}

wsdl the google API (search google with ruby)

court3nay () — Fri, 21 Oct 2005 13:54:54 GMT



require 'soap/wsdlDriver'

$KCODE = "UTF8"

key = 'LVJnAm5QFHblahblahblah your key here'



#create driver

wsdl = "http://api.google.com/GoogleSearch.wsdl"

driver = SOAP::WSDLDriverFactory.new(wsdl).create_rpc_driver

query = "your query string here"

start = 0

max = 10

  

# see http://dev.ctor.org/soap4r/browser/trunk/sample/wsdl/googleSearch/wsdlDriver.rb

@results = driver.doGoogleSearch( key, query, start, max, true, "", true, 'lang_en', '','')

snippets = @results.resultElements.collect { |r| r.snippet } # you can get all kinds'a' info here

self.update_attribute(:html, snippets.join("\n")) # or whatever