BrazilianZipCodeAddressService.rb

import ballerina.net.http;

@http:configuration {basePath:"/soap"}
service<http> cepservice {
    
    endpoint 
    <http:HttpClient> httpConnector{
        create http:HttpClient("https://apps.correios.com.br", {});
      }
         
    http:HttpConnectorError err;
      
    @http:resourceConfig {
    methods:["GET"],
    path:"/cep/{cep}"
    }
    resource consultacep (http:Request req, http:Response res, string cep) {
        
         xml soapRequest = xml `<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" 
                                 xmlns:cli="http://cliente.bean.master.sigep.bsb.correios.com.br/">
                                <soapenv:Header/>
                                      <soapenv:Body>
                                         <cli:consultaCEP>
                                              <cep>{{cep}}</cep>
                                        </cli:consultaCEP>
                                      </soapenv:Body>
                                </soapenv:Envelope>`;
        
        req.setXmlPayload(soapRequest);

        http:Response clientResponse = {};
        clientResponse, err = httpConnector.post("/SigepMasterJPA/AtendeClienteService/AtendeCliente", req);
        
        println("Convertendo XML para JSON  ");
        
        var xmlRetornavel, _ = <xml> clientResponse.getXmlPayload();
        
        json respostaComoJSON = {"logradouro": xmlRetornavel.toJSON({})["soap:Envelope"]["soap:Body"]["ns2:consultaCEPResponse"]["return"]};

        println(respostaComoJSON);
        
        res.setJsonPayload(respostaComoJSON);
        
        res.send();
    }

}