openapi: 3.2.0
info:
  description: MISO Public Specification to support Market System Enhancement (MSE) new Market User Interface (MUI 2.0).
  title: MUI - Public Specification Model API
  contact:
    name: MUI 2.0 Questions
    url: https://www.misoenergy.org/markets-and-operations/MSE/market-user-interface/
    email: MSEQuestions@misoenergy.org
  license:
    name: For use by MISO member companies and thier vendors
  version: 3.3.0
servers:
- url: https://cce.midwestiso.org/dart2/
- url: https://markets.midwestiso.org/dart2/
tags:
- name: Model
paths:
  /markets/model/pnodes:
    description: Return list of pnodes.
    parameters:
    - $ref: '#/components/parameters/x-acting-participant'
    get:
      tags:
      - Model
      description: Return list of pnodes. If query day parameter is not provided then all pnodes are returned irrespective of active dates.
      operationId: getPnodes
      parameters:
      - name: day
        description: The operating day of the report. Defaults to null (unspecified) if not provided.
        in: query
        required: false
        schema:
          $ref: '#/components/schemas/MarketOperatingDay'
      - name: context
        description: Context filter for the report.
        in: query
        required: false
        schema:
          $ref: '#/components/schemas/ContextFilter'
      - name: sortBy
        description: SortBy filter for report.
        in: query
        required: false
        schema:
          $ref: '#/components/schemas/SortByFilter'
      responses:
        '200':
          description: Successful operation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PNodeList'
          headers:
            http-x-request-id:
              $ref: '#/components/headers/http-x-request-id'
        '400':
          $ref: '#/components/responses/BadRequestApiResponse'
        '403':
          $ref: '#/components/responses/UnauthorizedApiResponse'
        '404':
          $ref: '#/components/responses/NotFoundApiResponse'
        '500':
          $ref: '#/components/responses/InternalErrorApiResponse'
components:
  schemas:
    MarketOperatingDay:
      description: Effective Market operating day of data. RFC 3339. 'YYYY-MM-DD'.
      type: string
      format: date
      example: '2019-03-14'
    PNodeName:
      description: Commercial Pricing Node (PNode) name.
      type: string
      minLength: 1
      maxLength: 30
      example: PNODE1
    SortByFilter:
      description: SortBy filter for the report.
      type: string
      enum:
      - Name
      - Type
      example: Name
    MarketOperatingDayNullable:
      description: Effective Market operating day of data. RFC 3339. 'YYYY-MM-DD'.
      type:
      - string
      - 'null'
      format: date
      example: '2019-03-14'
    PNodeList:
      description: List of active pnodes.
      type: object
      properties:
        day:
          $ref: '#/components/schemas/MarketOperatingDayNullable'
        pnodes:
          description: Pricing nodes in the report.
          type: array
          items:
            type: object
            properties:
              pnodeName:
                $ref: '#/components/schemas/PNodeName'
              pnodeType:
                type: string
                example: A
      required:
      - day
      - pnodes
    APIResponse:
      description: General container for API response.
      type: object
      properties:
        action:
          description: A general action code summary of the result. HTTP status codes will be applied that match. These indicate the type of operation that was done (or not). Note, some APIs use REST verbiage like created/updated/deleted while others use submit/query.
          enum:
          - CREATED
          - UPDATED
          - DELETED
          - CREATE_FAILED
          - UPDATE_FAILED
          - DELETE_FAILED
          - GET_FAILED
          - SUBMITTED
          - SUBMIT_FAILED
          - QUERY
          - QUERY_FAILED
        responses:
          description: List of responses in case multiple resources are modified, or general errors that are not resource specific.
          type: array
          minItems: 0
          items:
            description: A single response which may contain multiple messages, both error and warning, per response.
            type: object
            properties:
              messages:
                description: List of warnings and errors resulting from the command.
                type: array
                minItems: 0
                items:
                  description: An individual warning or error message.  Designed to be either localized or categorized as an event.
                  type: object
                  properties:
                    level:
                      description: An indication of severity of the message.
                      type: string
                      enum:
                      - ERROR
                      - WARNING
                      - INFO
                    msgId:
                      description: A categorized ID for this message, identifying it as a particular type of event. Useful for checking for specific errors, or localization.
                      type: string
                    params:
                      description: Ordered list of parameter values for the message.
                      type: array
                      items:
                        type: string
                    userMsg:
                      description: The message, fully rendered in the default locale on the service side.
                      type: string
        transactionId:
          description: Unique identifier for the transaction which can be queried at a later date. Identifier is a GUID represented without hyphens. Only returned for submissions and errors though all calls generate a transaction ID that is returned in the http-x-request-id response header.
          type: string
          format: guid
        transactionTime:
          description: The time at which the transaction was received by the system.
          type: string
          format: date-time
    ContextFilter:
      description: Context filter for the report.
      type: string
      enum:
      - System
      - Portfolio
      - FinSched
      - Supply
      - DemandBid
      - VirtualBid
      - VirtualOffer
      - Lmp
      example: System
  headers:
    http-x-request-id:
      description: Response header contains a unique transaction identifier assigned by MUI. Identifier is a GUID represented without hyphens.
      schema:
        type: string
        format: guid
      example: 34571c664e48ca0b1e30d7ffb9b3b287
  responses:
    InternalErrorApiResponse:
      description: Internal error occurred, details in server-side logs.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/APIResponse'
          example:
            action: <action enum>
            responses:
            - messages:
              - level: ERROR
                msgId: MESSAGE_ID
                params: []
                userMsg: Internal error message for MESSAGE_ID.
            transactionId: 34571c664e48ca0b1e30d7ffb9b3b287
            transactionTime: '2020-07-02T17:45:00-05:00'
      headers:
        http-x-request-id:
          $ref: '#/components/headers/http-x-request-id'
    BadRequestApiResponse:
      description: User error. Request was invalid for some reason. See response for details.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/APIResponse'
          example:
            action: <action enum>
            responses:
            - messages:
              - level: ERROR
                msgId: MESSAGE_ID
                params: []
                userMsg: Bad request message for MESSAGE_ID.
            transactionId: 34571c664e48ca0b1e30d7ffb9b3b287
            transactionTime: '2020-07-02T17:45:00-05:00'
      headers:
        http-x-request-id:
          $ref: '#/components/headers/http-x-request-id'
    UnauthorizedApiResponse:
      description: Rejected due to insufficient permissions.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/APIResponse'
          example:
            action: <action enum>
            responses:
            - messages:
              - level: ERROR
                msgId: MESSAGE_ID
                params: []
                userMsg: Unauthorized message for MESSAGE_ID.
            transactionId: 34571c664e48ca0b1e30d7ffb9b3b287
            transactionTime: '2020-07-02T17:45:00-05:00'
      headers:
        http-x-request-id:
          $ref: '#/components/headers/http-x-request-id'
    NotFoundApiResponse:
      description: Resource not found. The path provided does not point to an entity in the system.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/APIResponse'
          example:
            action: <action enum>
            responses:
            - messages:
              - level: ERROR
                msgId: MESSAGE_ID
                params: []
                userMsg: Not found message for MESSAGE_ID.
            transactionId: 34571c664e48ca0b1e30d7ffb9b3b287
            transactionTime: '2020-07-02T17:45:00-05:00'
      headers:
        http-x-request-id:
          $ref: '#/components/headers/http-x-request-id'
  parameters:
    x-acting-participant:
      in: header
      name: x-acting-participant
      description: Header to override default acting participant of NERC ID. Will be validated against participant collection resource when specified in path.
      schema:
        type: string
      example: MP