I am using swagger request validator library (version 2.22.0) in my project with below yaml configurations.

info:
title: Sample API
version: 1.0.0
openapi: 3.0.0
paths:
/demo/{groupIdentifier}:
get:
description: This API which will provide all the members of a group.
operationId: get-group-v2
responses:
“200”:
description: Successful response
parameters:
– description: Composite group identifier
explode: false
in: path
name: groupIdentifier
required: true
allowReserved: true
schema:
properties:
domainCode:
description: Code of the master data domain
type: string
groupTypeCode:
description: The prototype type of the group that has to be searched
type: string
type: object
style: simple

running api gives me below error :
“oas://openapi.yaml”: failed with reason: “[ERROR – Unable to parse JSON – Unrecognized token ‘domainCode’: was expecting (JSON String, Number, Array, Object or token ‘null’, ‘true’ or ‘false’)nt at [Source: (String)”domainCode,CUSTOMER,groupTypeCode,CUSTOMER_GROUP”; line: 1, column: 11].: []]””

in the api call, I am passing path variables in object format (comma seperated) as mentioned in the doc – https://swagger.io/docs/specification/serialization/

ex. http://test.com/demo/domainCode,CUSTOMER,groupTypeCode,CUSTOMER_GROUP

Also, I debugged the library and found that its trying to convert comma-seperated values in json and hence, giving this error. can anyone please suggest whats wrong with the yaml configuration here ?

tried configuring style simple with path variables object serialization. Expecting that it should work as per the swagger official document.