Receiving always NULL when calling a WCF Service, method POST

Dear sir,

I have problems with my .NET WCF Service, method POST.

It is working fine when calling from other clients, but it is not work when calling from Corona.

When calling from Corona, the service is fired, but its parameter is always NULL.

This is the Corona code:

    local dados = {}

    dados.esc_codigo = codigo

    local body = json.encode(dados)

    local url = “http://192.168.0.28:81/wcfEscola.svc/consultaCodigo

    

    local headers = {}

    headers[“Content-Type”] = “application/json”

    headers[“Accept-Language”] = “en-US”

    local params = {}

    params.headers = headers

    params.body = body

    network.request(url, “POST”, onRequestComplete, params)