openapi: 3.0.3
info:
  title: Open Liberty Admin REST Configuration Metrics API
  description: REST management API provided by Open Liberty for managing the server, deploying applications, querying MicroProfile Health and Metrics, and managing server configuration through the REST connector.
  version: 24.0.0
  contact:
    name: Open Liberty
    url: https://openliberty.io/
  license:
    name: Eclipse Public License 1.0
    url: https://www.eclipse.org/legal/epl-v10.html
servers:
- url: https://localhost:9443
  description: Default Open Liberty HTTPS admin endpoint
tags:
- name: Metrics
  description: MicroProfile Metrics endpoints.
paths:
  /metrics:
    get:
      operationId: getAllMetrics
      summary: Get all metrics
      description: Returns all MicroProfile Metrics in Prometheus or JSON format.
      tags:
      - Metrics
      parameters:
      - name: Accept
        in: header
        description: Response format.
        schema:
          type: string
          enum:
          - application/json
          - text/plain
          default: text/plain
      responses:
        '200':
          description: All metrics.
          content:
            text/plain:
              schema:
                type: string
                description: Prometheus format metrics.
            application/json:
              schema:
                type: object
                additionalProperties: true
  /metrics/base:
    get:
      operationId: getBaseMetrics
      summary: Get base metrics
      description: Returns base JVM and runtime metrics.
      tags:
      - Metrics
      responses:
        '200':
          description: Base metrics.
  /metrics/vendor:
    get:
      operationId: getVendorMetrics
      summary: Get vendor metrics
      description: Returns Liberty-specific vendor metrics.
      tags:
      - Metrics
      responses:
        '200':
          description: Vendor metrics.
  /metrics/application:
    get:
      operationId: getApplicationMetrics
      summary: Get application metrics
      description: Returns application-defined metrics.
      tags:
      - Metrics
      responses:
        '200':
          description: Application metrics.
components:
  securitySchemes:
    basicAuth:
      type: http
      scheme: basic
      description: Admin user credentials configured in server.xml.