Question

我有两个字段phone字段和phoneCode字段。我正在使用ExpressJS的“ @ hapi / joi” 16.1.8版本。

对于自定义错误消息，我使用.messages（）方法而不是.error（），因为它的用法很简单。这是我尝试在Joi系统上验证的代码：

const data = { phone, phoneCode };
const schema = Joi.object({
    phone: Joi.string().pattern(/^[0-9]{10}$/).required().messages({
        "string.base": "Sorry! It looks like something went wrong. Please try later.",
        "string.pattern.base": "Phone number must be a 10 digits number.",
        "string.empty": "Phone Number is not allowed to be empty."
    }),
    phoneCode: Joi.string().max(3).required().messages({ 
        "number": "Want to send default message if any error" 
    })
});

let validate = schema.validate(data, { abortEarly: false });

当phoneCode密钥出现错误时，我只想发送一条默认消息。我也尝试过

"number.*": "Want to send default message if any error"
  OR
Joi.string().max(3).required().message("Want to send default message if any error") // It give Error: Cannot apply rules to empty ruleset
  OR
phoneCode: Joi.string().max(3).message("Want to send default message if any error" ).required() // This worked upto a limit, not working if i sent phoneCode empty.

Answer 1

这是我在JOI中实现自定义错误消息的方式。只需从validate对象获取消息。它简单而有效。

const data = { phone, phoneCode };
const schema = Joi.object({
    phone: Joi.string().pattern(/^[0-9]{10}$/).required().messages({
        "string.base": "Sorry! It looks like something went wrong. Please try later",
        "string.pattern.base": "Phone number must be a 10 digits number",
        "string.empty": "Phone Number is not allowed to be empty",
        "any.required": "Phone Number is required"
    }),
    phoneCode: Joi.string().max(3).required().messages({ 
        "string.base": "Phone code must be valid",
        "string.empty": "Phone code must be valid",
        "string.max": "Phone code must be valid",
        "any.required": "Phone code must be valid"
    })
});

let validate = schema.validate(data);

if (!validate || validate.hasOwnProperty("error")) {
   console.error(`[URL: ${req.originalUrl}] [ERROR:${JSON.stringify(validate.error.details)}]`);
   return SendResponse.sendErrorMessage(res, validate.error.details[0].message);
}

Answer 2

我想Joi现在不可能直接做到这一点。您可以使用.error(new Error(errMsg))发送回一个错误，以防phoneCode出现问题：

const Joi = require('@hapi/joi');

const joiSchema = Joi.object({
    phone: Joi.string().pattern(/^[0-9]{10}$/).required().messages({
        "string.base": "Sorry! It looks like something went wrong. Please try later.",
        "string.pattern.base": "Phone number must be a 10 digits number.",
        "string.empty": "Phone Number is not allowed to be empty."
    }),
    phoneCode: Joi.string().max(3).required().error(new Error("Want to send default message if any error"))
}).error((errors) => new Error(errors.join(' ')));

const { error, value } = joiSchema.validate({ phone: 123, phoneCode: null }, { abortEarly: false });
console.log(error, value);

输出：

Error: Sorry! It looks like something went wrong. Please try later. Error: Want to send default message if any error
Object {phone: 123, phoneCode: null}

但是请记住，在ValidationError的情况下，Joi会发回.messages()，但是现在它会发回Error。您可以根据需要设置错误的格式，我只是在错误末尾加了空格。

具有可执行代码：https://runkit.com/rvypandey/5e394a3b78e4df0013483771

的RunKit

对任何字符串类型错误显示相同的自定义错误消息[EXPRESS + JOI]

2 个答案: