Bug: when API endpoint return list, InvalidMediaTypeValue exception was generated

[andyceo]

When some API endpoint return list (array) of something, openapi-core generates InvalidMediaTypeValue exception:

/peers/all
Request errors: [] Response errors: [InvalidMediaTypeValue('Failed to cast value of [ to SchemaType.OBJECT',)]
 [FAIL] 1 errors found 
Response body: [
]

This exception generated no matter list is empty or not.

[andyceo]

Some important addition: it seems that this error is generated only if returned result should be a list of objects:

  /peers/connected:
    get:
      summary: Get current connected peers
      operationId: getConnectedPeers
      tags:
        - peers
      responses:
        '200':
          description: Array of peer objects
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Peer'

In case when list should be list of strings, error did not generated and validation is ok:

  /peers/blacklisted:
    get:
      summary: Get blacklisted peers
      operationId: getBlacklistedPeers
      tags:
        - peers
      responses:
        '200':
          description: Array of the addresses
          content:
            application/json:
              schema:
                type: array
                items:
                  type: string
                  description: Blacklisted node address

[p1c2u]

@andyceo of corse, you're right. I forgot that JSON text can be an array too (not just object). I will prepare fix.

[andyceo]

Great work! Thank you so much! Can confirm this error is gone. May be new release? 😀