Simplest SOAP example

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What is the simplest SOAP example using Javascript?

To be as useful as possible, the answer should:

  • Be functional (in other words actually work)
  • Send at least one parameter that can be set elsewhere in the code
  • Process at least one result value that can be read elsewhere in the code
  • Work with most modern browser versions
  • Be as clear and as short as possible, without using an external library
soap javascript
13 Answers

This cannot be done with straight JavaScript unless the web service is on the same domain as your page. Edit: In 2008 and in IE<10 this cannot be done with straight javascript unless the service is on the same domain as your page.

If the web service is on another domain [and you have to support IE<10] then you will have to use a proxy page on your own domain that will retrieve the results and return them to you. If you do not need old IE support then you need to add CORS support to your service. In either case, you should use something like the lib that timyates suggested because you do not want to have to parse the results yourself.

If the web service is on your own domain then don't use SOAP. There is no good reason to do so. If the web service is on your own domain then modify it so that it can return JSON and save yourself the trouble of dealing with all the hassles that come with SOAP.

Short answer is: Don't make SOAP requests from javascript. Use a web service to request data from another domain, and if you do that then parse the results on the server-side and return them in a js friendly form.

Prestaul_56280

Simplest example would consist of:

  1. Getting user input.

  2. Composing XML SOAP message similar to this

    <soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
               xmlns:xsd="http://www.w3.org/2001/XMLSchema"
               xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
  <soap:Body>
    <GetInfoByZIP xmlns="http://www.webserviceX.NET">
      <USZip>string</USZip>
    </GetInfoByZIP>
  </soap:Body>
</soap:Envelope>

  3. POSTing message to webservice url using XHR

  4. Parsing webservice's XML SOAP response similar to this

    <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"
               xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
               xmlns:xsd="http://www.w3.org/2001/XMLSchema">
 <soap:Body>
  <GetInfoByZIPResponse xmlns="http://www.webserviceX.NET">
   <GetInfoByZIPResult>
    <NewDataSet xmlns="">
     <Table>
      <CITY>...</CITY>
      <STATE>...</STATE>
      <ZIP>...</ZIP>
      <AREA_CODE>...</AREA_CODE>
      <TIME_ZONE>...</TIME_ZONE>
     </Table>
    </NewDataSet>
   </GetInfoByZIPResult>
  </GetInfoByZIPResponse>
 </soap:Body>
</soap:Envelope>

  5. Presenting results to user.

But it's a lot of hassle without external JavaScript libraries.

Constantin_203100
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