在HTTP请求中传递JSON对象

时间:2016-07-24 14:53:37

标签: json node.js http

我有以下内容:

路由文件" prontuarios.js":

     module.exports = function(app){        
        getProntuarios =  function(request, response, next){
            var sqlCustom = request.query;  
            var connection = app.infra.connectionFactory();
            var prontuariosDAO = new app.infra.ProntuariosDAO(connection);
            prontuariosDAO.lista(sqlCustom, function(erros, resultados){            
                if(erros){
                    return next(erros);
                }
                response.format({
                    json: function(){
                        response.json(resultados);
                    }
                });
            });
            connection.end();       
        } 

        app.route('/v1/prontuarios')
            .get(getProntuarios);
... 

和DAO文件" ProntuariosDAO.js"

...
ProntuariosDAO.prototype.lista = function(sqlCustom, callback){
    var _sqlCustom;
    console.log(`sqlCustom ${sqlCustom}`);      
    if (sqlCustom){
        _sqlCustom = sqlCustom; 
    }
...

当我调用prontuariosDAO.lista函数时,我希望传递" sqlCustom"参数,但问题是" sqlCustom"必须是函数ProntuariosDAO.prototype.lista中的JSON对象。但是,它没有发生,sqlCustom参数变得像这样的字符串:

{ 
    limit: '10',
    offset: '2',
    orderBy: '{"field":"nome","type":"desc"}',
    whereAnd:
       [ 
         '{"field":"id","operator":"<","value":"300"}',
         '{"field":"nome","operator":"like","value":"jo%"}' 
       ] 
}

我尝试使用JSON.parse函数,但它无法正常工作,因为它正在解析orderBywhereAnd,就像字符串一样。

这是一种在JSON中转换该字符串的方法吗?我是否正确传递了HTTP参数?

1 个答案:

答案 0 :(得分:0)

看起来你需要递归地应用JSON.parse来获取返回给你的数据:

data = { 
    limit: '10',
    offset: '2',
    orderBy: '{"field":"nome","type":"desc"}',
    whereAnd:
       [ 
         '{"field":"id","operator":"<","value":"300"}',
         '{"field":"nome","operator":"like","value":"jo%"}' 
       ] 
}
JSON.parse(data.orderBy)