Generated examples are not valid when using regular expression patterns

[albertored]

Generated examples are not valid when using regular expression patterns.
In this case, the example is simply "string" without honoring the regular expression.

Maybe something like https://github.com/fent/randexp.js can be used for this

[Orest-Yastremskyy]

Hi @albertored

Is there a chance you could provide us with additional details regarding this matter along with the minimal setup to replicate it from our side?

[albertored]

Take this OA as an example:

openapi: 3.0.3
info:
  version: 1.0.0
  title: Test
  description: Test
servers:
  - url: "/api/1"
paths:
  /test:
    get:
      operationId: Test
      summary: Test
      description: Test
      responses:
        "200":
          description: Test
          content:
            application/json:
              schema:
                type: object
                properties:
                  test:
                    type: string
                    pattern: "^[0-9]{5,8}$"

This is rendered like this

As you can see the example is rendered as {"test": "string"} that is not valid against the schema.

I was planning to open a PR on the https://github.com/Redocly/openapi-sampler repository for generating examples using randexp but I saw in the readme that

Deterministic (given a particular input, will always produce the same output)

so I stop 😄

[Orest-Yastremskyy]

Thank you for the details provided. Let us check it, please.

[Orest-Yastremskyy]

Hi @albertored
I will reopen this issue in the openapi-sampler repository and close this one. Thank you so much for reporting this.

[AlexVarchuk]

Hi @albertored, thanks for the issue. OpenAPI sampler does not support it for now, but I believe may. We'll discuss it.
For now you can use example field for provide value to right panel.