openapi.yaml

---
openapi: 3.0.3  # do not use 3.1 as tooling is not ready yet
info:
  title: BMI
  description: >
    OpenAPI specification for the Basic Modeling Interface (BMI).
    All functions are described on the
    [BMI homepage](https://bmi.readthedocs.io/).
  version: "2.0"
  license:
    name: Apache 2.0
    url: http://www.apache.org/licenses/LICENSE-2.0.html
  contact:
    name: eWaterCycle
    url: https://www.ewatercycle.org/contact/
servers:
  - url: http://localhost:50051
    description: Default URL for a BMI service
tags:
  - name: IRF
    description: Initialize, run, finalize
  - name: Exchange items
    description: >
      Supply the model name and the model’s exchange items –
      the variables that the model can use from and provide
      to other models that have a BMI.
  - name: Getters
    description: Access the variables that a model exposes
  - name: Setters
    description: Modify the variables that a model exposes
  - name: Time information
    description: Provide information on model time.
  - name: Variable information
    description: >
      These BMI functions provide information about a particular input
      or output variable.
  - name: Grid information
    description: >
      These BMI functions provide information about the grid on which
      a variable is defined.
  - name: NURC
    description: >
      Used for describing rectilinear, structured quadrilateral,
      and all unstructured grids.
  - name: Uniform rectilinear
    description: Uniform rectilinear grid
  - name: Unstructured
    description: Unstructured grid
paths:
  /initialize:
    post:
      operationId: initialize
      description: >
        Performs all tasks that are to take place before entering
        the model’s time loop.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#initialize
      responses:
        "201":
          description: A successful response.
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      requestBody:
        required: true
        content:
          # Content type for ProblemDetails is application/json
          # instead of application/problem+json
          # to make it easier to use in implementations
          # This is for every default response in any path.
          application/json:
            schema:
              $ref: "#/components/schemas/InitializeRequest"
      tags:
        - IRF
  /update:
    post:
      operationId: update
      description: Advances the model by a single time step.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#update
      responses:
        "204":
          description: A successful response.
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      tags:
        - IRF
  /update_until:
    post:
      operationId: update_until
      description: Updates the model to a particular time
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#update-until
      responses:
        "204":
          description: A successful response.
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/GetTimeResponse"
      tags:
        - IRF
  /finalize:
    delete:
      operationId: finalize
      description: >
        Performs all tasks that take place after exiting the model’s time loop.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#finalize
      responses:
        "204":
          description: A successful response.
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      tags:
        - IRF
  /get_component_name:
    get:
      operationId: get_component_name
      description: Get the name of the model component.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-component-name
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/GetComponentNameResponse"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      tags:
        - Exchange items
  /get_input_item_count:
    get:
      operationId: get_input_item_count
      description: >
        The number of variables the model can use from other models
        implementing a BMI.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-input-item-count
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Count"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      tags:
        - Exchange items
  /get_input_var_names:
    get:
      operationId: get_input_var_names
      description: >
        Gets an array of names for the variables the model can use
        from other models implementing a BMI.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-input-var-names
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/GetVarNamesResponse"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      tags:
        - Exchange items
  /get_output_item_count:
    get:
      operationId: get_output_item_count
      description: >
        The number of variables the model can provide other models
        implementing a BMI.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-output-item-count
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Count"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      tags:
        - Exchange items
  /get_output_var_names:
    get:
      operationId: get_output_var_names
      description: >
        Gets an array of names for the variables the model can provide to
        other models implementing a BMI.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-output-var-names
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/GetVarNamesResponse"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      tags:
        - Exchange items

  /get_var_grid/{name}:
    get:
      operationId: get_var_grid
      description: >
        Each input and output variable is defined on a grid.
        This function returns the grid identifier for a given variable.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-var-grid
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/GetVarGridResponse"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      parameters:
        - name: name
          in: path
          required: true
          schema:
            $ref: "#/components/schemas/VarName"
      tags:
        - Variable information
  /get_var_itemsize/{name}:
    get:
      operationId: get_var_itemsize
      description: >
        Provides the size, in bytes, of a single element of
        the variable.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-var-itemsize
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/GetVarItemSizeResponse"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      parameters:
        - name: name
          in: path
          required: true
          schema:
            $ref: "#/components/schemas/VarName"
      tags:
        - Variable information
  /get_var_location/{name}:
    get:
      operationId: get_var_location
      description: Indicates on what grid element the variable is defined.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-var-location
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/GetVarLocationResponseLocation"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      parameters:
        - name: name
          in: path
          required: true
          schema:
            $ref: "#/components/schemas/VarName"
      tags:
        - Variable information
  /get_var_nbytes/{name}:
    get:
      operationId: get_var_nbytes
      description: >
        Provides the total amount of memory used to store
        a variable; i.e., the number of items multiplied by
        the size of each item.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-var-nbytes
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/GetVarNBytesResponse"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      parameters:
        - name: name
          in: path
          required: true
          schema:
            $ref: "#/components/schemas/VarName"
      tags:
        - Variable information
  /get_var_type/{name}:
    get:
      operationId: get_var_type
      description: Provides the data type of the variable.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-var-type
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/GetVarTypeResponse"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      parameters:
        - name: name
          in: path
          required: true
          schema:
            $ref: "#/components/schemas/VarName"
      tags:
        - Variable information
  /get_var_units/{name}:
    get:
      operationId: get_var_units
      description: Get the units of the given variable.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-var-units
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/GetVarUnitsResponse"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      parameters:
        - name: name
          in: path
          required: true
          schema:
            $ref: "#/components/schemas/VarName"
      tags:
        - Variable information

  /get_current_time:
    get:
      operationId: get_current_time
      description: The current model time.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-current-time
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/GetTimeResponse"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      tags:
        - Time information
  /get_end_time:
    get:
      operationId: get_end_time
      description: The end time of the model.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-end-time
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/GetTimeResponse"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      tags:
        - Time information

  /get_start_time:
    get:
      operationId: get_start_time
      description: The start time of the model.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-start-time
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/GetTimeResponse"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      tags:
        - Time information
  /get_time_step:
    get:
      operationId: get_time_step
      description: Get the time step used in the model.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-time-step
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/GetTimeStepResponse"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      tags:
        - Time information
  /get_time_units:
    get:
      operationId: get_time_units
      description: >
        Get the units of time as reported by the model’s BMI.

        If model has absolute start time, you can use `since` format, see
        [cfconventions](https://cfconventions.org/cf-conventions/cf-conventions#time-coordinate).
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-time-units
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/GetTimeUnitsResponse"
              examples:
                hourly:
                  value:
                    units: h
                dayssince:
                  value:
                    units: days since 2000-01-01
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      tags:
        - Time information

  /get_value/{name}:
    get:
      operationId: get_value
      description: Get the value of a variable.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-value
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/GetValueResponse"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      parameters:
        - name: name
          in: path
          required: true
          schema:
            $ref: "#/components/schemas/VarName"
      tags:
        - Getters
  /get_value_at_indices/{name}:
    post:
      operationId: get_value_at_indices
      description: Get the value of a variable at specific indices.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-value-at-indices
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/GetValueAtIndicesResponse"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      parameters:
        - name: name
          in: path
          required: true
          schema:
            $ref: "#/components/schemas/VarName"
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/Indices"
      tags:
        - Getters

  /set_value/{name}:
    post:
      operationId: set_value
      description: Set the value of a variable.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#set-value
      responses:
        "204":
          description: A successful response.
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      parameters:
        - name: name
          in: path
          required: true
          schema:
            $ref: "#/components/schemas/VarName"
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/SetValueRequest"
      tags:
        - Setters
  /set_value_at_indices/{name}:
    post:
      operationId: set_value_at_indices
      description: Set the value of a variable at specific indices.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#set-value-at-indices
      responses:
        "204":
          description: A successful response.
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      parameters:
        - name: name
          in: path
          required: true
          schema:
            $ref: "#/components/schemas/VarName"
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/SetValueAtIndicesRequest"
      tags:
        - Setters

  /get_grid_rank/{grid}:
    get:
      operationId: get_grid_rank
      description: >
        Given a grid identifier, get the rank
        (the number of dimensions) of that grid as an integer.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-grid-rank
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/GetGridRankResponse"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      parameters:
        - name: grid
          in: path
          required: true
          schema:
            $ref: "#/components/schemas/Grid"
      tags:
        - Grid information

  /get_grid_type/{grid}:
    get:
      operationId: get_grid_type
      description: >
        Given a grid identifier, get the type of that grid as a string.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-grid-type
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/GetGridTypeResponse"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      parameters:
        - name: grid
          in: path
          required: true
          schema:
            $ref: "#/components/schemas/Grid"
      tags:
        - Grid information
  /get_grid_size/{grid}:
    get:
      operationId: get_grid_size
      description: >
        Given a grid identifier, get the total number of elements
        (or nodes) of that grid as an integer.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-grid-size
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/GetGridSizeResponse"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      parameters:
        - name: grid
          in: path
          required: true
          schema:
            $ref: "#/components/schemas/Grid"
      tags:
        - Grid information

  /get_grid_origin/{grid}:
    get:
      operationId: get_grid_origin
      description: >
        Get the coordinates of the lower-left corner of the model grid.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-grid-origin
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Doubles"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      parameters:
        - name: grid
          in: path
          required: true
          schema:
            $ref: "#/components/schemas/Grid"
      tags:
        - Uniform rectilinear

  /get_grid_shape/{grid}:
    get:
      operationId: get_grid_shape
      description: Get the dimensions of the model grid.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-grid-shape
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Indices"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      parameters:
        - name: grid
          in: path
          required: true
          schema:
            $ref: "#/components/schemas/Grid"
      tags:
        - Uniform rectilinear

  /get_grid_spacing/{grid}:
    get:
      operationId: get_grid_spacing
      description: Get the distance between the nodes of the model grid.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-grid-spacing
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Doubles"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      parameters:
        - name: grid
          in: path
          required: true
          schema:
            $ref: "#/components/schemas/Grid"
      tags:
        - Uniform rectilinear

  /get_grid_x/{grid}:
    get:
      operationId: get_grid_x
      description: >
        Get the locations of the grid nodes in the first coordinate direction.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-grid-x
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Doubles"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      parameters:
        - name: grid
          in: path
          required: true
          schema:
            $ref: "#/components/schemas/Grid"
      tags:
        - NURC
  /get_grid_y/{grid}:
    get:
      operationId: get_grid_y
      description: >
        Get the locations of the grid nodes in the second coordinate direction.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-grid-y
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Doubles"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      parameters:
        - name: grid
          in: path
          required: true
          schema:
            $ref: "#/components/schemas/Grid"
      tags:
        - NURC
  /get_grid_z/{grid}:
    get:
      operationId: get_grid_z
      description: >
        Get the locations of the grid nodes in the third coordinate direction.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-grid-z
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Doubles"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      parameters:
        - name: grid
          in: path
          required: true
          schema:
            $ref: "#/components/schemas/Grid"
      tags:
        - NURC

  /get_grid_edge_count/{grid}:
    get:
      operationId: get_grid_edge_count
      description: Get the number of edges in the grid.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-grid-edge-count
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Count"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      parameters:
        - name: grid
          in: path
          required: true
          schema:
            $ref: "#/components/schemas/Grid"
      tags:
        - Unstructured
  /get_grid_edge_nodes/{grid}:
    get:
      operationId: get_grid_edge_nodes
      description: Get the edge-node connectivity.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-grid-edge-nodes
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Indices"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      parameters:
        - name: grid
          in: path
          required: true
          schema:
            $ref: "#/components/schemas/Grid"
      tags:
        - Unstructured
  /get_grid_face_count/{grid}:
    get:
      operationId: get_grid_face_count
      description: Get the face-node connectivity.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-grid-face-count
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Count"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      parameters:
        - name: grid
          in: path
          required: true
          schema:
            $ref: "#/components/schemas/Grid"
      tags:
        - Unstructured
  /get_grid_face_edges/{grid}:
    get:
      operationId: get_grid_face_edges
      description: Get the face-edge connectivity.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-grid-face-edges
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Indices"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      parameters:
        - name: grid
          in: path
          required: true
          schema:
            $ref: "#/components/schemas/Grid"
      tags:
        - Unstructured
  /get_grid_face_nodes/{grid}:
    get:
      operationId: get_grid_face_nodes
      description: Get the face-node connectivity.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-grid-face-nodes
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Indices"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      parameters:
        - name: grid
          in: path
          required: true
          schema:
            $ref: "#/components/schemas/Grid"
      tags:
        - Unstructured
  /get_grid_node_count/{grid}:
    get:
      operationId: get_grid_node_count
      description: Get the number of nodes in the grid.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-grid-node-count
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Count"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      parameters:
        - name: grid
          in: path
          required: true
          schema:
            $ref: "#/components/schemas/Grid"
      tags:
        - Unstructured
  /get_grid_nodes_per_face/{grid}:
    get:
      operationId: get_grid_nodes_per_face
      description: Get the number of nodes for each face.
      externalDocs:
        url: https://bmi.readthedocs.io/en/stable/#get-grid-nodes-per-face
      responses:
        "200":
          description: A successful response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Indices"
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ProblemDetails"
      parameters:
        - name: grid
          in: path
          required: true
          schema:
            $ref: "#/components/schemas/Grid"
      tags:
        - Unstructured
components:
  schemas:
    GetVarLocationResponseLocation:
      type: object
      properties:
        location:
          type: string
          enum:
            - node
            - edge
            - face
          default: node
      additionalProperties: false
      required:
        - location
    GetComponentNameResponse:
      type: object
      properties:
        name:
          type: string
          minLength: 1
      required:
        - name
      additionalProperties: false
    Count:
      type: integer
      format: int32
      minimum: 0
    Indices:
      type: array
      items:
        type: integer
        format: int64
        description: Values of variable are indexed 0-based.
        minimum: 0
      minItems: 1
    Doubles:
      type: array
      items:
        type: number
        format: double
      minItems: 1
    GetGridRankResponse:
      type: integer
      format: int32
    GetGridSizeResponse:
      type: integer
      format: int64
    GetGridTypeResponse:
      type: object
      properties:
        type:
          type: string
          enum:
            - scalar
            - points
            - vector
            - unstructured
            - structured_quadrilateral
            - rectilinear
            - uniform_rectilinear
      required:
        - type
      additionalProperties: false
    GetTimeResponse:
      type: number
      format: double
      example: 0.0
    GetTimeStepResponse:
      type: number
      format: double
      example: 1.0
    GetTimeUnitsResponse:
      type: object
      properties:
        units:
          type: string
          minLength: 1
      required:
        - units
      additionalProperties: false
    GetValueAtIndicesResponse:
      type: array
      items:
        type: number
      minItems: 1
    GetValueResponse:
      type: array
      items:
        type: number
      minItems: 1
    GetVarGridResponse:
      type: integer
      format: int32
    GetVarItemSizeResponse:
      type: integer
      format: int64
    GetVarNBytesResponse:
      type: integer
      format: int64
    GetVarNamesResponse:
      type: array
      minItems: 0
      items:
        type: string
        minLength: 1
    GetVarTypeResponse:
      type: object
      properties:
        type:
          type: string
          externalDocs:
            url: https://swagger.io/docs/specification/data-models/data-types/#numbers  # yamllint disable-line rule:line-length
          enum:
            - float
            - double
            - int32
            - int64
      required:
        - type
      additionalProperties: false
    GetVarUnitsResponse:
      type: object
      properties:
        units:
          type: string
          minLength: 1
      required:
        - units
      additionalProperties: false
    InitializeRequest:
      type: object
      properties:
        config_file:
          type: string
          description: >
            Path to the configuration file. Should resolvable by web service.
          minLength: 0
      required:
        - config_file
      additionalProperties: false
    SetValueAtIndicesRequest:
      type: object
      properties:
        indices:
          type: array
          items:
            type: integer
            description: Values of variable are indexed 0-based.
            format: int64
            minimum: 0
          minItems: 1
        values:
          type: array
          items:
            type: number
          minItems: 1
      required:
        - indices
        - values
      additionalProperties: false
    SetValueRequest:
      type: array
      items:
        type: number
      minItems: 1
    Grid:
      type: integer
      format: int32
    VarName:
      type: string
      description: Name of the variable
      minLength: 1
    # Copy of https://json.schemastore.org/problem-object-rfc9457.json
    ProblemDetails:
      type: object
      title: An RFC 9457 problem object
      description: >-
        Definition from
        https://datatracker.ietf.org/doc/html/rfc9457#name-json-schema-for-http-proble
      properties:
        type:
          type: string
          format: uri-reference
          description: A URI reference that identifies the problem type.
        title:
          type: string
          description: "A short, human-readable summary of the problem type."
        status:
          type: integer
          description: >-
            The HTTP status code generated by the origin server for
            this occurrence of the problem.
          minimum: 100
          maximum: 599
        detail:
          type: string
          description: >
            A human-readable explanation specific to this occurrence
            of the problem.
        instance:
          type: string
          format: uri-reference
          description: >-
            A URI reference that identifies the specific occurrence
            of the problem.
            It may or may not yield further information if dereferenced.
      additionalProperties: true