[wp-trac] [WordPress Trac] #51782: Required in REST API register_rest_route args should check for empty string

[WordPress Trac]

#51782: Required in REST API register_rest_route args should check for empty string
--------------------------+-------------------------
 Reporter:  khr2003       |       Owner:  (none)
     Type:  defect (bug)  |      Status:  closed
 Priority:  normal        |   Milestone:
Component:  REST API      |     Version:  4.7
 Severity:  normal        |  Resolution:  worksforme
 Keywords:  needs-patch   |     Focuses:  rest-api
--------------------------+-------------------------
Changes (by TimothyBlynJacobs):

 * status:  new => closed
 * version:  5.5.3 => 4.7
 * resolution:   => worksforme
 * milestone:  Awaiting Review =>


Comment:

 Hi @khr2003,

 Welcome to trac and thanks for the ticket!

 I understand this can be confusing, but it is the functionality required
 by the [https://tools.ietf.org/html/draft-fge-json-schema-
 validation-00#section-5.4.3 JSON Schema specification].

 When you want a field to be required, and disallow an empty string, I'd
 recommend using the `minLength` keyword. For example:

 {{{#!php
 array(
         'type'      => 'string',
         'minLength' => 1,
         'required'  => true,
 )
 }}}

 You can use the `minItems` keyword for arrays, `minimum` for numbers, and
 `minProperties` for objects.

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Ticket URL: <https://core.trac.wordpress.org/ticket/51782#comment:1>
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