Swagger errors shows a need to define a parameter in the path or operation level

I am getting the error below:

Declared path parameter "imageId" needs to be defined as a path parameter at either the path or operation level

This is the snapshot of my swagger definition

 '/api/v1/images/{unitnumber}/{type}/{imageId}':
        delete:
          tags:
            - Images
          summary: 'Summary'
          description: "Description"
          operationId: DeleteImage
          consumes: []
          produces:
            - application/json
          parameters:
            - name: unitnumber
              in: path
              required: true
              type: string
            - name: type
              in: path
              required: true
              type: string
            - name: imageId
              in: query
              required: false
              type: string
          responses:
            '400':
              description: Bad Request
              schema:
                $ref: '#/definitions/ErrorResponse'
            '401':
              description: Unauthorized
              schema:
                type: string
            '500':
              description: Server Error
              schema:
                $ref: '#/definitions/ErrorResponse'

I only can get rid of the error if I take the imageId and changing to path instead query which is not the intention

           - name: imageId
                  in: path
                  required: true
                  type: string

Any idea of what I need to change to have this working?

Solution 1:

The path string /api/v1/images/{unitnumber}/{type}/{imageId} means that imageId is a path parameter so it must be in: path.

If imageId is supposed to be a query parameter, as in /api/v1/images/{unitnumber}/{type}?imageId=..., you need to change the path string to /api/v1/images/{unitnumber}/{type}. Query parameters should not be mentioned in paths, they are defined in the parameters section alone.