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> The thing im finding really frustrating is that there is barely any documentation on pulling data from a satasource into a webservice every book and tutorial I have looked at never cover using databases which suprises me somewhat as I would've thought it is an ideal thing to use a web service for. I am not a .NET programmer, but I am assuming a data source would be the same as an SQL result set. Once you have your data, putting it into your web service depends on how you decided to implement your web service. There are two ways I do web services and I describe them below. Program Call Style (a.k.a RPC) This kind of web service interfaces a .NET object more directly in that it will have an input and output parm (except if a method didn't return a value) for each method within a .NET object. This is where SOAP (Simple Object Access Protocol) comes into play. Essentially SOAP is used to make a call to a .NET method from a Java method transparent (put any two languages/entities you want in there. It is not limited to .NET and Java) So if I have a Java program that accepts an integer and outputs a string (customer address lookup for instance) then the WSDL would describe that parm list so it could be consumed by a .NET program. The .NET program (through Visual Studio) can do a Ctrl + Space to get the available methods of that Java object and the valid values that can be passed into the different methods. Document Literal Style This is similar to RPC in that you will still be calling an end method, but the data type is almost always a String that contains an XML document of some sort. Once the SOAP call is made and the end program has received the XML, it will then parse the XML and finish its processing. From the other perspective, if you have a data source you want to output (say serialize) and are using document literal then you would compose XML (using string concatenation if you wish) and specify the variable containing the XML when calling the SOAP method of the WSDL document you have already built. Maybe the better question to ask is this: Do you have your WSDL (Web Services Description Language) document defined? In your case it would be a WSDL document developed from the .NET web service that has the data source in it. Once the WSDL is developed for that .NET web service Biztalk can consume it. HTH, Aaron Bartell -----Original Message----- From: web400-bounces@xxxxxxxxxxxx [mailto:web400-bounces@xxxxxxxxxxxx] On Behalf Of Rohan Sootarsing Sent: Wednesday, June 08, 2005 9:36 AM To: web400@xxxxxxxxxxxx Subject: RE: [WEB400] Biztalk Connecting to As400 The thing im finding really frustrating is that there is barely any documentation on pulling data from a satasource into a webservice every book and tutorial I have looked at never cover using databases which suprises me somewhat as I would've thought it is an ideal thing to use a web service for. I think the problem I am having is that the actual webservice isnt populated with any fields/nodes until the query is submitted so obviously biztalk cannot see these. Thanks for all your pointers so far would it be possible to email me when you get your as400 webservice up and running it would be interesting to look at Rohan >>> albartell@xxxxxxxxx 08/06/2005 15:20:32 >>> It sounds like you already know a .NET language and how to build a web service end point in Visual Studio, so that is the direction I would keep going until you can get the full loop working. At that point if you decided that having .NET in the mix isn't right you can move to Java to process the XML and do the talking to DB2. Biztalk can get busy quick. I would recommend building a full loop process that doesn't have any complication built into it but instead is just for the purpose of unit testing the connections to all machines/programs involved. In effect just build a hello world web service that goes from Biztalk to your .NET web service. Put plenty of console messages in the process so you can see exactly where the process is stopping. One thing that I do when working with remote communication is write everything you receive into the .NET web service out to the console. That way you know exactly what is being sent and can then determine how to process it. Sometimes it is hard to get to the raw HTTP request with all of the high level tooling in the IDE's these days. After you have that written then start building on that knowledge and add in content. HTH, Aaron Bartell -----Original Message----- From: web400-bounces@xxxxxxxxxxxx [mailto:web400-bounces@xxxxxxxxxxxx] On Behalf Of Rohan Sootarsing Sent: Wednesday, June 08, 2005 8:50 AM To: web400@xxxxxxxxxxxx Subject: RE: [WEB400] Biztalk Connecting to As400 Yeah something like that, I have nothing on the iseries itself yet waiting for the request I know nothing about the as400 i have been having to wing this I have a file on the as400 which i have build a .net webservice to access using the .net provider and a sql query. This works fine when I test it in ie and returns all the data from the as400 file however when i try to connect to this webservice it can only see the dataset node of the xml and nothing else im guessing this is because all the other nodes are generated on the fly. I Would be interested in learning more about setting up a listener or this webservice you talk about on your site. I will be very grateful for any help you can give me Regards Rohan Sootarsing >>> albartell@xxxxxxxxx 08/06/2005 14:30:16 >>> Just so I am understanding you here. You are trying to send an XML request from Biztalk to an iSeries machine, correct? What is waiting for the XML request on the iSeries? You need to have some sort of service (FTP, HTTP, SMTP) on the iSeries waiting for the XML request. An interesting product I evaluated awhile back that allowed Biztalk to make requests direct to RPG programs is called Attunity (http://www.attunity.com/). Check out their Attunity Connect product. If you are looking to create an RPG XML Web service check out my XMLSAX parser at http://mowyourlawn.com. Use that coupled with an RPG CGI program to create a "Biztalk Listener" on your iSeries. HTH, Aaron Bartell -----Original Message----- From: web400-bounces@xxxxxxxxxxxx [mailto:web400-bounces@xxxxxxxxxxxx] On Behalf Of Rohan Sootarsing Sent: Wednesday, June 08, 2005 3:35 AM To: web400@xxxxxxxxxxxx Subject: [WEB400] Biztalk Connecting to As400 Hello, I have created a webvservice to connect to as400 however im having problems connecting to this from biztalk I was wondering if anyone had managed to connect biztalk to as400 Thanks in advance Rohan ____________________________________________________________________________ __ This message has been checked for viruses by Corpex using the ArmourPlate Virus Scanning Service. To find out how to protect your company visit http://www.armourplate.com or call Corpex on +44 (0)207 430 8000.
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