Pattern: Valid pattern throwing error

[mbana]

I am getting tthe below error for this swagger file: https://raw.githubusercontent.com/OpenBankingUK/payment-initiation-api-spec/master/dist/v1.1/payment-initiation-swagger.json.

...
ERROR - operation "CreateSingleImmediatePayment" has invalid pattern in param "x-idempotency-key": "^(?!\\s)(.*)(\\S)$"
...

Definition:

{
    "name": "x-idempotency-key",
    "in": "header",
    "description": "Every request will be processed only once per x-idempotency-key.  The Idempotency Key will be valid for 24 hours.",
    "required": true,
    "type": "string",
    "pattern": "^(?!\\s)(.*)(\\S)$",
    "maxLength": 40
}

[fredbi]

That's because we don't strictly support ECMA regexp, but follow golang implementation.

Operator ?! is not supported by go regexp.

Try it out there: https://regex-golang.appspot.com/assets/html/index.html

[mbana]

@fredbi, modifying the swagger is out of the question.
What do you suggest I do?

[casualjim]

you can make use of our mixin command which allows you to patch a swagger spec.
That allows you to pre-process the swagger specification and then run the code generation step.