Optional: Using Web Services

1
Optional Using Web Services

• Demo FedEx Tracking Status
• Xmethods.net
• Saving WSDL
• Using WSDL Import Wizard
• Writing Client Code

2
Step 1. Download FedEx WSDL file from Xmethods.net
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Step 2. Start BCB and Import WSDL

• File New Other, Web Services tab, WSDL
  Importer

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Generated FedExTrackerService.h File Contains

• Interface defined as
• __interface INTERFACE_UUID("FA22832C-B912-8C69-A1
  0B-CFFF4CC9B6D3") FedExTrackerPortType public
  IInvokable
• Function declared as
• virtual AnsiString getStatus(const AnsiString
  trackingNumber) 0
• Function to get an interface declared as
• _di_FedExTrackerPortType GetFedExTrackerPortType(b
  ool useWSDLfalse, AnsiString addr"")

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Step 3 Design the Form
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Step 4 Write Event Handler

• File Include Unit Hdr
• FedExTrackerService
• On Button Click
• void __fastcall TForm1cmdStatusClick(TObject
  Sender)
• Memo1-gtText GetFedExTrackerPortType()-gtgetStat
  us(Edit1-gtText)

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Step 3. Test the Client

• Tracking Number 496054180486