Delphi ActiveX

MercadoLibre - Cargar factura (Upload Invoice)

See more MercadoLibre Examples

Cargar factura en detalle de venta Delphi ActiveX

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Integer;
http: TChilkatHttp;
jsonToken: TChilkatJsonObject;
sbPath: TChilkatStringBuilder;
numReplaced: Integer;
req: TChilkatHttpRequest;
resp: TChilkatHttpResponse;
sbResponseBody: TChilkatStringBuilder;
jResp: TChilkatJsonObject;
respStatusCode: Integer;
strVal: WideString;
i: Integer;
count_i: Integer;

begin
success := 0;

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

http := TChilkatHttp.Create(Self);

// First get our previously obtained OAuth2 access token.
jsonToken := TChilkatJsonObject.Create(Self);
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 := TChilkatStringBuilder.Create(Self);
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 := TChilkatHttpRequest.Create(Self);
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 := TChilkatHttpResponse.Create(Self);
success := http.HttpSReq('api.mercadolibre.com',443,1,req.ControlInterface,resp.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;

sbResponseBody := TChilkatStringBuilder.Create(Self);
resp.GetBodySb(sbResponseBody.ControlInterface);
jResp := TChilkatJsonObject.Create(Self);
jResp.LoadSb(sbResponseBody.ControlInterface);
jResp.EmitCompact := 0;

Memo1.Lines.Add('Response Body:');
Memo1.Lines.Add(jResp.Emit());

respStatusCode := resp.StatusCode;
Memo1.Lines.Add('Response Status Code = ' + IntToStr(respStatusCode));
if (respStatusCode >= 400) then
  begin
    Memo1.Lines.Add('Response Header:');
    Memo1.Lines.Add(resp.Header);
    Memo1.Lines.Add('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;
end;