openapi: 3.1.0
info:
  title: Amazon CloudWatch API
  version: '2010-08-01'
  description: |
    Amazon CloudWatch is a monitoring and observability service that collects
    metrics, logs, and events from AWS resources and applications. The
    CloudWatch Query API accepts POST requests to the root path with the
    Action and Version specified as form parameters in the
    application/x-www-form-urlencoded request body. All requests are signed
    with AWS Signature Version 4 (SigV4).

    See https://docs.aws.amazon.com/AmazonCloudWatch/latest/APIReference/Welcome.html
servers:
  - url: https://monitoring.{region}.amazonaws.com
    description: Amazon CloudWatch regional endpoint
    variables:
      region:
        default: us-east-1
tags:
  - name: Metrics
  - name: Alarms
  - name: Anomaly Detection
  - name: Dashboards
  - name: Insight Rules
  - name: Metric Streams
  - name: Tags
security:
  - SigV4: []
paths:
  /:
    post:
      summary: CloudWatch Query API entry point
      description: |
        All CloudWatch API actions are invoked as POST requests to the root
        path with the Action and Version specified in the
        application/x-www-form-urlencoded request body.
      operationId: invokeAction
      parameters:
        - name: Action
          in: query
          required: true
          schema:
            type: string
            enum:
              - PutMetricData
              - GetMetricData
              - GetMetricStatistics
              - ListMetrics
              - GetMetricWidgetImage
              - PutMetricAlarm
              - PutCompositeAlarm
              - DescribeAlarms
              - DescribeAlarmsForMetric
              - DescribeAlarmHistory
              - DeleteAlarms
              - EnableAlarmActions
              - DisableAlarmActions
              - SetAlarmState
              - PutAnomalyDetector
              - DescribeAnomalyDetectors
              - DeleteAnomalyDetector
              - PutDashboard
              - GetDashboard
              - ListDashboards
              - DeleteDashboards
              - PutInsightRule
              - DescribeInsightRules
              - DeleteInsightRules
              - DisableInsightRules
              - EnableInsightRules
              - GetInsightRuleReport
              - PutMetricStream
              - GetMetricStream
              - ListMetricStreams
              - DeleteMetricStream
              - StartMetricStreams
              - StopMetricStreams
              - TagResource
              - UntagResource
              - ListTagsForResource
        - name: Version
          in: query
          required: true
          schema:
            type: string
            default: '2010-08-01'
      requestBody:
        required: false
        content:
          application/x-www-form-urlencoded:
            schema:
              type: object
              additionalProperties: true
      responses:
        '200':
          description: Successful response (XML)
          content:
            text/xml:
              schema:
                type: object
        '400':
          description: Client error
        '500':
          description: Server error
components:
  securitySchemes:
    SigV4:
      type: apiKey
      in: header
      name: Authorization
      description: AWS Signature Version 4 signed Authorization header