Joi对象验证:如何验证具有未知键名的值? [英] Joi object validation: How to validate values with unknown key names?

问题描述

我有一个对象，它的键名我可能不知道-它们是由用户创建的.但是我确实知道它们(键)将存储什么值，它们(值)将是ISO字符串.如何验证这些值?而且，可选，如何验证未知对象的密钥，即:

I have an object with key names I cannot possibly know - they are created by user. However I do know what values they (keys) are going to store, and they (values) are going to be ISO strings. How do I validate those values? And, optionally, how do I validate uknown object's keys, i.e.:

 key: Joi.string().min(2).max(25)

我已经尝试过的基于Joi API文档:

What I have already tried was based on Joi API docs :

使用Joi.object([schema])代替普通的JS对象的另一个好处是>您可以在对象上设置任何选项，例如允许未知键，例如:

const schema = Joi.object({ arg: Joi.string().valid('firstname', 'lastname', 'title', 'company', 'jobtitle'), value: Joi.string(), }).pattern(/firstname|lastname/, Joi.string().min(2));

const schema = Joi.object({ arg: Joi.string().valid('firstname', 'lastname', 'title', 'company', 'jobtitle'), value: Joi.string(), }).pattern(/firstname|lastname/, Joi.string().min(2));

我从示例中了解到，arg键代表Joi.object()的key，而value代表它的value.

What I understood from the example is that arg key represents Joi.object()'s key, and value represents it's value.

我的示例:

campaign: Joi.object({
  arg: Joi.string().valid( 'unknown' ),
  value: Joi.date().iso(),
}).pattern( /unknown/, Joi.string().min(2).max(25) )

我的输入；

campaign: { g_ad_adwords: "2017-01-19T11:33:26.205Z" }

我的错误:

广告系列"失败，因为[[g_ad_adwords]不允许使用

"campaign" fails because ["g_ad_adwords" is not allowed]

推荐答案

尝试一下.它基本上会接受对象campaign中的任何键，并且该值必须针对Joi.date().iso()

Try this. It'll basically accept any key within an object campaign and the value must validate against Joi.date().iso()

campaign: Joi.object().pattern(/^/, Joi.date().iso())

这将与任何键匹配.您可以通过稍微填充正则表达式来限制它.例如只有2到25个字符的单词字符

This however will match any key. You can restrict this by padding out the regex a little. e.g. only word characters between 2 and 25 chars

campaign: Joi.object().pattern(/\w{2,25}/, Joi.date().iso())

更新

关于Joi文档中的示例，我没有测试过，但这是我的解释.我可以理解，这不是他们所能给出的最直接的例子……

Regarding the example in the Joi docs, I haven't tested it but here's my interpretation. I can understand that it's not the most straightforward example they could have given...

const schema = Joi.object({
    arg: Joi.string().valid('firstname', 'lastname', 'title', 'company', 'jobtitle'),
    value: Joi.string(),
}).pattern(/firstname|lastname/, Joi.string().min(2));

要验证的对象必须包含两个属性arg和value，其中arg的值可以是'firstname', 'lastname', 'title', 'company', 'jobtitle'之一，而value只是一个字符串. /p>

The objects to validate must contain the two attributes arg and valuewhere arg's value can be one of 'firstname', 'lastname', 'title', 'company', 'jobtitle' and value is just a string.

{
    arg: 'firstname',
    value: 'john'
}

{
    arg: 'lastname',
    value: 'smith'
}

{
    arg: 'jobtitle',
    value: 'brewer'
}

但是，它还将允许对象具有属性firstname和lastname，其中它们的两个值都是具有两个以上字符的字符串.因此，以上示例可以简化为一个有效的对象.

However it will also allow the object to have the attributes firstname and lastname where both of their values is a string with more than two characters. So the above examples could be condensed into a single valid object.

{
    firstname: 'john',
    lastname: 'smith',
    arg: 'jobtitle',
    value: 'brewer'
}

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