Missing documentation for field length limits in API schema

[jrajamaki]

While integrating with the Paytrail API using the official PHP library, I encountered the following error response after making a request:

{
    "status": "error",
    "message": "Request payload schema validation failed. Validate request against the provided schema.", 
    "meta": [
        "instance.customer.firstName does not meet maximum length of 50",
        "instance.customer.lastName does not meet maximum length of 50",
        "instance.customer.phone does not meet maximum length of 30"
    ]
}

There is no mention of these maximum field lengths in the official Paytrail API documentation. Furthermore, the PHP library does not perform validation for these field lengths, so the error is only revealed after the request is sent to the API.

Please update the API documentation to clearly specify the maximum allowed lengths and validation rules for all fields. Furthermore, consider adding validation to the official libraries to ensure standardized approach.

[jrajamaki]

Actually, the documentation about field lengths is there for firstname and lastname, but not for phone.

Nevertheless, the official libraries do not always validate field lengths.