Close and refresh VF button

Question

I've developed a Visualforce button that callout an external Webservice and fills object fields with the obtained information.

I cant find the way to create button to close the VF page and refresh the Object that was modified and refresh the page to show the changes.

Is this possible? What can I try to achieve this?

EDIT

Visualforce button.

<apex:page standardController="Account" extensions="EquifaxEmpresaController" action="{!consultaEmpresa}">
   <input type="hidden" value="{!account.Equifax__c}"></input>   

<apex:pageBlock >

  <apex:form >
  {!theJSON}
   </apex:form>

  </apex:pageBlock>

</apex:page>

Extension Class

public class EquifaxEmpresaController {

    private final Account acct;
    public EquifaxEmpresa theEmpresa {get;set;}
    public String theJSON {get;set;}
    public String aux {get;set;}

    public EquifaxEmpresaController(ApexPages.StandardController stdController){
        this.acct = (Account)stdController.getRecord();
   }

    public void consultaEmpresa(){

        string msj = '{'+
                     '"NroDocumento":"'+acct.Equifax__c+'",'+
                     '"Consulta":"Empresa"'+
                     '}';

        Http http = new Http();
        HttpRequest req = new HttpRequest();
        req.setEndpoint('some endpoint here');
        req.setBody(msj);
        req.setMethod('POST');
        req.setHeader('Content-Type','application/json');
        req.setTimeout(12000);

        HttpResponse res = new HttpResponse();

        res = Http.send(req);
        if(res.getStatusCode() == 200){
            String body = res.getBody();
            theEmpresa = EquifaxEmpresa.parse(body);
            Account tempAcct = [select id, BC_IE_Razon_Social__c from account where id =: acct.Id];

            tempAcct.BC_IE_Razon_Social__c = theEmpresa.Empresa[0].RazonSocial;
            tempAcct.Name = theEmpresa.Empresa[0].NombreComercial;
            tempAcct.BC_IE_Tipo_de_Contribuyente__c = theEmpresa.Empresa[0].TipoContribuyente;
            tempAcct.BC_IE_Estado_de_Contribuyente__c = theEmpresa.Empresa[0].EstadoContribuyente;
            tempAcct.BC_IE_Condicion_Contribuyente__c = theEmpresa.Empresa[0].CondicionContribuyente;
            tempAcct.BC_IE_Razon_Dependencia__c = theEmpresa.Empresa[0].Dependencia;
            tempAcct.BC_IE_Codigo_CIIU__c = theEmpresa.Empresa[0].CodigoCIIU;
            tempAcct.BC_IE_Descripcion_CIIU__c = theEmpresa.Empresa[0].DescripcionCIIU;
            tempAcct.BC_IE_Inicio_Actividades__c = theEmpresa.Empresa[0].InicioActividades;
            tempAcct.BC_IE_Actividad_Comercio_Exterior__c = theEmpresa.Empresa[0].ActividadComercioExterior;
            tempAcct.BC_IE_Numero_Trabajadores__c = theEmpresa.Empresa[0].NumeroTrabajadores;

            update tempAcct;

            theJSON = 'Datos correctamente insertados, puede cerrar esta ventana.';

        }else{
            theJSON = 'Error :'+res.getBody()+' '+res.getStatusCode();
        }

    }

Thanks

Answer 1

to return back to the account record simply add this to your method

public PageReference consultaEmpresa(){

    return new PageReference('/' + acct.Id);

}

You can remove theJSON from the page and the controller as it will never be shown

In case you need to setRedirect which you should not

public PageReference consultaEmpresa(){

        PageReference pr = new PageReference('/' + acct.Id);
        pr.setRedirect(true);
        return pr;

    }