Crear producto
POST http://localhost/web/tpe2/api/products/
Request Body
{"precio"=>1190, "color"=>"Stellar red", "stock"=>4, "id_especificacion"=>3}
POST http://localhost/web/tpe2/api/products/
{"precio"=>1190, "color"=>"Stellar red", "stock"=>4, "id_especificacion"=>3}