Node.js + Joi 如何显示自定义错误信息? [英] Node.js + Joi how to display a custom error messages?

问题描述

使用 Joi 验证用户在 Node.js RESTapi 中的输入似乎非常简单.

It seems pretty straight forward to validate user's input in Node.js RESTapi with Joi.

但问题是我的应用程序不是用英文编写的.这意味着我需要向前端用户发送自定义的书面消息.

But the problem is that my app is not written in English. That means I need to send a custom written messages to the frontend user.

我在谷歌上搜索过，但只发现了问题.

I have googled for this and only found issues.

也许有人可以为此提供解决方案?

Maybe could someone give a solution for this?

这是我用来验证 Joi 系统的代码:

This is the code I am using to validate with the Joi system:

    var schema = Joi.object().keys({
      firstName: Joi.string().min(5).max(10).required(),
      lastName: Joi.string().min(5).max(10).required()
      ..
    });

    Joi.validate(req.body, schema, function(err, value) {
      if (err) {
        return catched(err.details); 
      }
    });

    function catched(reject) {
      res.json({
        validData: false,
        errors: reject
      });
    }

另外，有没有办法在客户端使用Joi?

Plus, is there a way to use Joi in client side?

谢谢！

推荐答案

我找到的一个解决方案是设置:

A solution I have found is to set:

var schema = Joi.object().keys({
  firstName: Joi.string().min(5).max(10).required().label("Your error message in here"),
  lastName: Joi.string().min(5).max(10).required()
  ..
});

然后从回调error变量中打印label

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