How can I use SOAP client and server in Delphi

To use SOAP in Delphi, you can use the THTTPRIO component from the Indy library. The Indy library is a set of Delphi components that support a variety of Internet protocols, including HTTP and SOAP.

To install the Indy library, follow these steps:

Download the Indy library from the following URL: https://www.indyproject.org/download/Sockets.zip
Extract the downloaded archive to a folder on your computer.
Open Delphi and go to the “Component” menu.
Choose “Install Packages” and click on the “Add” button.
Navigate to the folder where you extracted the Indy library and select the “indy*.bpl” file.
Click on the “Open” button to install the Indy library.
With the Indy library installed, you can now use the THTTPRIO component in your Delphi code.

Here is an example of how to use the component to call a SOAP web service:

uses
  HTTPRIO;

function CallWebService(const AURL: string): string;
var
  RIO: THTTPRIO;
  Response: string;
begin
  RIO := THTTPRIO.Create(nil);
  try
    RIO.URL := AURL;
    Response := RIO.GetAsString(‘http://example.com/service’);
    Result := Response;
  finally
    RIO.Free;
  end;
end;

uses

HTTPRIO;

function CallWebService(const AURL: string): string;

var

RIO: THTTPRIO;

Response: string;

begin

RIO := THTTPRIO.Create(nil);

try

RIO.URL := AURL;

Response := RIO.GetAsString(‘http://example.com/service’);

Result := Response;

finally

RIO.Free;

end;

To implement a SOAP server in Delphi, you can use the THTTPRIO component in combination with a web server component, such as TIdHTTPServer from the Indy library.

Here is an example of how to implement a SOAP server in Delphi using the Indy library:

uses
  IdHTTPServer, HTTPRIO;

type
  TMyService = class(THTTPRIO)
  public
    function Echo(const AValue: string): string;
  end;

function TMyService.Echo(const AValue: string): string;
begin
  Result := AValue;
end;

var
  Server: TIdHTTPServer;
  Service: TMyService;

begin
  Server := TIdHTTPServer.Create(nil);
  try
    Server.DefaultPort := 8080;
    Server.OnCommandGet :=
      procedure(AContext: TIdContext; ARequestInfo: TIdHTTPRequestInfo; AResponseInfo: TIdHTTPResponseInfo)
      begin
        Service := TMyService.Create(nil);
        try
          Service.URL := ‘http://localhost:8080’;
          AResponseInfo.ContentText := Service.Echo(ARequestInfo.Params.Values[‘value’]);
        finally
          Service.Free;
        end;
      end;
    Server.Active := True;
    Readln;
  finally
    Server.Free;
  end;
end.

uses

IdHTTPServer, HTTPRIO;

type

TMyService = class(THTTPRIO)

public

function Echo(const AValue: string): string;

end;

function TMyService.Echo(const AValue: string): string;

begin

Result := AValue;

end;

var

Server: TIdHTTPServer;

Service: TMyService;

begin

Server := TIdHTTPServer.Create(nil);

try

Server.DefaultPort := 8080;

Server.OnCommandGet :=

procedure(AContext: TIdContext; ARequestInfo: TIdHTTPRequestInfo; AResponseInfo: TIdHTTPResponseInfo)

begin

Service := TMyService.Create(nil);

try

Service.URL := ‘http://localhost:8080’;

AResponseInfo.ContentText := Service.Echo(ARequestInfo.Params.Values[‘value’]);

finally

Service.Free;

end;

Server.Active := True;

Readln;

finally

Server.Free;

end;

end.

This code creates an HTTP server that listens on port 8080 and responds to SOAP requests by calling the Echo method of the TMyService class.

How can I use SOAP client and server in Delphi

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