openapi: 3.1.0
info:
  title: Azure Monitor Metrics Batch API
  description: >-
    A high-volume API designed for retrieving metric values across multiple Azure
    resources in a single request. All resources in a batch must be in the same
    subscription and region.
  version: '2024-02-01'
  contact:
    name: Microsoft Azure Support
    url: https://azure.microsoft.com/en-us/support/options/
  license:
    name: Microsoft API License
    url: https://azure.microsoft.com/en-us/support/legal/
servers:
  - url: https://{region}.metrics.monitor.azure.com
    description: Azure Monitor Metrics regional endpoint
    variables:
      region:
        default: eastus
        description: The Azure region for the metrics endpoint.
security:
  - oauth2:
      - https://management.azure.com/.default
tags:
  - name: Metrics Batch
    description: Operations for batch querying Azure Monitor metrics across multiple resources
paths:
  /subscriptions/{subscriptionId}/metrics:batchGet:
    post:
      operationId: MetricsBatch_Batch
      summary: Azure Monitor Batch query metrics for multiple resources
      description: >-
        Lists the metric values for multiple resources in a single batch request.
        All resources must be in the same subscription, region, and resource type.
        Allows for efficient retrieval of metric data at scale.
      tags:
        - Metrics Batch
      parameters:
        - $ref: '#/components/parameters/SubscriptionIdParameter'
        - $ref: '#/components/parameters/ApiVersionParameter'
        - $ref: '#/components/parameters/StartTimeParameter'
        - $ref: '#/components/parameters/EndTimeParameter'
        - $ref: '#/components/parameters/IntervalParameter'
        - $ref: '#/components/parameters/MetricNamesParameter'
        - $ref: '#/components/parameters/MetricNamespaceParameter'
        - $ref: '#/components/parameters/AggregationParameter'
        - $ref: '#/components/parameters/TopParameter'
        - $ref: '#/components/parameters/OrderByParameter'
        - $ref: '#/components/parameters/FilterParameter'
        - $ref: '#/components/parameters/RollUpByParameter'
      requestBody:
        description: >-
          The batch body that contains the list of resource IDs to query metrics for.
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/MetricsBatchRequest'
      responses:
        '200':
          description: Successful batch request to get metrics for multiple resources.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/MetricsBatchResponse'
        default:
          description: Error response describing why the operation failed.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
components:
  securitySchemes:
    oauth2:
      type: oauth2
      flows:
        clientCredentials:
          tokenUrl: https://login.microsoftonline.com/{tenantId}/oauth2/v2.0/token
          scopes:
            https://management.azure.com/.default: Access Azure Management API
  parameters:
    SubscriptionIdParameter:
      name: subscriptionId
      in: path
      required: true
      description: The ID of the target subscription.
      schema:
        type: string
    ApiVersionParameter:
      name: api-version
      in: query
      required: true
      description: Client API version.
      schema:
        type: string
        default: '2024-02-01'
    StartTimeParameter:
      name: starttime
      in: query
      required: true
      description: The start time of the query in ISO 8601 format.
      schema:
        type: string
        format: date-time
    EndTimeParameter:
      name: endtime
      in: query
      required: true
      description: The end time of the query in ISO 8601 format.
      schema:
        type: string
        format: date-time
    IntervalParameter:
      name: interval
      in: query
      required: false
      description: The interval (window size) of the query in ISO 8601 duration format.
      schema:
        type: string
        default: PT1M
    MetricNamesParameter:
      name: metricnames
      in: query
      required: true
      description: The names of the metrics (comma-separated) to retrieve.
      schema:
        type: string
    MetricNamespaceParameter:
      name: metricNamespace
      in: query
      required: true
      description: Metric namespace that contains the requested metric names.
      schema:
        type: string
    AggregationParameter:
      name: aggregation
      in: query
      required: false
      description: The list of aggregation types (comma-separated) to retrieve.
      schema:
        type: string
    TopParameter:
      name: top
      in: query
      required: false
      description: The maximum number of records to retrieve per resource.
      schema:
        type: integer
        format: int32
    OrderByParameter:
      name: orderBy
      in: query
      required: false
      description: The aggregation to use for sorting results and the direction of the sort.
      schema:
        type: string
    FilterParameter:
      name: $filter
      in: query
      required: false
      description: The $filter used to reduce the set of metric data returned.
      schema:
        type: string
    RollUpByParameter:
      name: rollUpBy
      in: query
      required: false
      description: Dimension name(s) to rollup results by.
      schema:
        type: string
  schemas:
    MetricsBatchRequest:
      type: object
      required:
        - resourceids
      properties:
        resourceids:
          type: array
          items:
            type: string
          description: >-
            The list of resource IDs to query metrics for. All resources must be
            in the same subscription, region, and resource type.
    MetricsBatchResponse:
      type: object
      properties:
        values:
          type: array
          items:
            $ref: '#/components/schemas/MetricResultsResponse'
          description: The collection of metric results for each resource.
    MetricResultsResponse:
      type: object
      properties:
        starttime:
          type: string
          description: The start time, in datetime format, for which the data was retrieved.
        endtime:
          type: string
          description: The end time, in datetime format, for which the data was retrieved.
        interval:
          type: string
          description: The interval (window size) for which the metric data was returned.
        namespace:
          type: string
          description: The namespace of the metrics being queried.
        resourceregion:
          type: string
          description: The region of the resource being queried for metrics.
        resourceid:
          type: string
          description: The resource ID for which metrics were retrieved.
        value:
          type: array
          items:
            $ref: '#/components/schemas/Metric'
          description: The value of the collection.
    Metric:
      type: object
      required:
        - id
        - type
        - name
        - unit
        - timeseries
      properties:
        id:
          type: string
          description: The metric ID.
        type:
          type: string
          description: The resource type of the metric resource.
        name:
          type: object
          properties:
            value:
              type: string
              description: The invariant value.
            localizedValue:
              type: string
              description: The display name.
          required:
            - value
        displayDescription:
          type: string
          description: Detailed description of this metric.
        unit:
          type: string
          enum:
            - Count
            - Bytes
            - Seconds
            - CountPerSecond
            - BytesPerSecond
            - Percent
            - MilliSeconds
            - ByteSeconds
            - Unspecified
            - Cores
            - MilliCores
            - NanoCores
            - BitsPerSecond
          description: The unit of the metric.
        timeseries:
          type: array
          items:
            $ref: '#/components/schemas/TimeSeriesElement'
          description: The time series returned when a data query is performed.
    TimeSeriesElement:
      type: object
      properties:
        metadatavalues:
          type: array
          items:
            type: object
            properties:
              name:
                type: object
                properties:
                  value:
                    type: string
                  localizedValue:
                    type: string
              value:
                type: string
          description: The metadata values returned.
        data:
          type: array
          items:
            $ref: '#/components/schemas/MetricValue'
          description: An array of data points representing the metric values.
    MetricValue:
      type: object
      required:
        - timeStamp
      properties:
        timeStamp:
          type: string
          format: date-time
          description: The timestamp for the metric value in ISO 8601 format.
        average:
          type: number
          format: double
          description: The average value in the time range.
        minimum:
          type: number
          format: double
          description: The least value in the time range.
        maximum:
          type: number
          format: double
          description: The greatest value in the time range.
        total:
          type: number
          format: double
          description: The sum of all of the values in the time range.
        count:
          type: number
          format: double
          description: The number of samples in the time range.
    ErrorResponse:
      type: object
      properties:
        code:
          type: string
          description: Error code.
        message:
          type: string
          description: Error message indicating why the operation failed.