July 14, 2002 - Initializing Web Service Consumption

Yehuda Shiran July 14, 2002
Initializing Web Service Consumption
Tips: July 2002

Yehuda Shiran, Ph.D.
Doc JavaScript

When you want to consume your own Web services, put them (asmx files) in a sub-directory of your Web server, such as c:\inetpub\wwwroot\Webreference. Then, when you access the services in your scripts, you refer to their directory as http://localhost/Webreference. For each Web service you consume you need to have three JavaScript functions:

init() function assigns a short name to the Web service URL
  • A function to call the Web service with the appropriate parameters
  • A function to display the results

    • The init() function can be shared among Web services. You invoke it upon loading of the page, onload=init(). We call the webservice behavior's useService() method to assign short identifiers to the Web service's rather-long URL. We call the add Web service by "simpleCalcWebService" and the IsPrime Web service by "isPrimeNumberWebService":

      function init() {
    myWebService.useService("
      http://localhost/Webreference/checkIsPrime.asmx?WSDL",
      "isPrimeNumberWebService");
    myWebService.useService("http://localhost/Webreference/simpleCalc.asmx?WSDL",  
      "simpleCalcWebService");
  }
    To learn more about JScript .NET, go to Column 112, JScript .NET, Part VI: Creating IE Web Services.