Cannot transform Response Objects for OpenAPIToGraphQL (Content-Type: application/vnd.kafka.v2+json)

[manikantasanthoshkuchimanchi]

Hello,

We have added an OpenAPI endpoint exposed by Strimzi Kafka Bridge for consumption of Kafka related activities.
Below is the OpenAPI mapping in the .meshrc.yaml

Encountering 'String cannot represent value: ' for all endpoint object responses except methods that return string.
Kindly helps us on how to deal with Content-Type: application/vnd.kafka.v2+json
Please find attached the screenshot for the error details.

But the endpoint is working with Postman

[mayan-jbsmith]

If you inspect the following three locations, you will find content-type conditional logic being used to evaluate the schema or the submitted request body.

packages/handlers/openapi/src/openapi-to-graphql/oas_3_tools.ts:458-463
packages/handlers/openapi/src/openapi-to-graphql/oas_3_tools.ts:521-524
packages/handlers/openapi/src/openapi-to-graphql/schema_builder.ts:1110-1111

If you provide handlers for the expanded use cases e.g. application/[????]+json, noted in the description for this issue above, you could alter the generic 'application/json', and make it slightly more inclusive. This will resolve the issue and enable slightly greater utility for those custom media types that may be used in the future. These are ALL just variants that still conform to the JSON standard, and should still be parseable as JSON, therefore no additional handling should be necessary, as the JSON parser is already being used. Although currently it uses the reduced options for media-types marked with the 'content' key as defined in the schema.

We have already built and tested these changes locally, and may submit a PR soon.

You can modify the build product with patches to achieve this locally, until a PR lands, in your own dev environment.

[mayan-jbsmith]

The above changes may inform a path to resolve for this feature.
Please provide guidance as to anything beyond the CONTRIBUTION guidelines that would need to be considered.