[CAMEL-21076] camel-openapi-java: Incorrect schema is generated for array type request

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.x, 4.x
• Fix Version/s: 4.8.0
• Component/s: camel-openapi-java
• Estimated Complexity: Unknown
• Assignee: Claus Ibsen
• Reporter: Iliya Grushevskiy
• Created: 12/Aug/24 21:55
• Updated: 13/Aug/24 15:49
• Resolved: 13/Aug/24 15:49

Description

When specifying an array of objects as a request type (in PUT/POST methods), the generated OpenAPI schema does not match the expected result.

For example:

.post()
  .type(User[].class)
  .to("bean:....")

Will generate:

"requestBody" : {
  "description" : "",
  "content" : {
    "application/json" : {
      "schema" : {
        "type" : "string"
      }
    }
  },
  "required" : true
}, 

While expected schema should be:

"requestBody" : {
  "description" : "",
  "content" : {
    "application/json" : {
      "schema" : {
        "type" : "array",
        "items" : {
          "$ref" : "#/components/schemas/User"
        }
      }
    }
  },
  "required" : true
}