Pascal (Lazarus/Delphi)

MercadoLibre - Cargar factura (Upload Invoice)

See more MercadoLibre Examples

Cargar factura en detalle de venta Pascal (Lazarus/Delphi)

program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.Http,
  Chilkat.StringBuilder,
  Chilkat.HttpResponse,
  Chilkat.HttpRequest,
  Chilkat.JsonObject;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  success: Boolean;
  http: THttp;
  jsonToken: TJsonObject;
  sbPath: TStringBuilder;
  numReplaced: Integer;
  req: THttpRequest;
  resp: THttpResponse;
  sbResponseBody: TStringBuilder;
  jResp: TJsonObject;
  respStatusCode: Integer;
  strVal: string;
  i: Integer;
  count_i: Integer;

begin
  success := False;

  //  This example assumes the Chilkat API to have been previously unlocked.
  //  See Global Unlock Sample for sample code.

  http := THttp.Create;

  //  First get our previously obtained OAuth2 access token.
  jsonToken := TJsonObject.Create;
  success := jsonToken.LoadFile('qa_data/tokens/mercadolibre.json');

  //  Implements the following CURL command:

  //  curl -X POST https://api.mercadolibre.com/packs/$PACK_ID/fiscal_documents?access_token=$ACCESS_TOKEN 
  //    -H 'content-type: multipart/form-data;' 
  //    -F 'fiscal_document=@/home/user/.../Factura_adjunta.pdf'

  //  Use the following online tool to generate HTTP code from a CURL command
  //  Convert a cURL Command to HTTP Source Code

  sbPath := TStringBuilder.Create;
  sbPath.Append('/packs/$PACK_ID/fiscal_documents?access_token=$ACCESS_TOKEN');
  //  Use an actual pack ID.
  numReplaced := sbPath.Replace('$PACK_ID','2000000089077943');
  numReplaced := sbPath.Replace('$ACCESS_TOKEN',jsonToken.StringOf('access_token'));

  req := THttpRequest.Create;
  req.HttpVerb := 'POST';
  req.Path := sbPath.GetAsString();
  req.ContentType := 'multipart/form-data';
  success := req.AddFileForUpload2('fiscal_document','/home/user/.../Factura_adjunta.pdf','application/pdf');

  req.AddHeader('Expect','100-continue');
  req.AddHeader('content-type','multipart/form-data;');

  resp := THttpResponse.Create;
  success := http.HttpSReq('api.mercadolibre.com',443,True,req,resp);
  if (success = False) then
    begin
      WriteLn(http.LastErrorText);
      Exit;
    end;

  sbResponseBody := TStringBuilder.Create;
  resp.GetBodySb(sbResponseBody);
  jResp := TJsonObject.Create;
  jResp.LoadSb(sbResponseBody);
  jResp.EmitCompact := False;

  WriteLn('Response Body:');
  WriteLn(jResp.Emit());

  respStatusCode := resp.StatusCode;
  WriteLn('Response Status Code = ' + respStatusCode);
  if (respStatusCode >= 400) then
    begin
      WriteLn('Response Header:');
      WriteLn(resp.Header);
      WriteLn('Failed.');
      Exit;
    end;

  //  Sample JSON response:
  //  (Sample code for parsing the JSON response is shown below)

  //  {
  //    "ids": [
  //      "415460047_a96d8dea-38cd-4402-938e-80a1c134fc5d"
  //    ]
  //  }

  //  Sample code for parsing the JSON response...
  //  Use the following online tool to generate parsing code from sample JSON:
  //  Generate Parsing Code from JSON

  i := 0;
  count_i := jResp.SizeOfArray('ids');
  while i < count_i do
    begin
      jResp.I := i;
      strVal := jResp.StringOf('ids[i]');
      i := i + 1;
    end;



  http.Free;
  jsonToken.Free;
  sbPath.Free;
  req.Free;
  resp.Free;
  sbResponseBody.Free;
  jResp.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.