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OpenAPI Specification

openapi: 3.2.0
info:
  title: QStash Dead Letter Queue Logs API
  description: QStash is a serverless message queue and task scheduling REST API from Upstash that delivers HTTP messages to endpoints reliably without requiring any long-lived connections or infrastructure management. Built entirely on stateless HTTP requests, it is designed for serverless and edge runtimes where traditional message brokers are impractical. QStash supports automatic retries, CRON-based scheduling up to one year in advance, URL group broadcasting for fan-out delivery, FIFO queuing, dead-letter queues, and message deduplication.
  version: '2.0'
  contact:
    name: Upstash Support
    url: https://upstash.com/docs/qstash/overall/getstarted
  license:
    name: Upstash Terms of Service
    url: https://upstash.com/trust/terms.pdf
servers:
- url: https://qstash.upstash.io/v2
  description: QStash production API
security:
- BearerAuth: []
tags:
- name: Logs
  description: Retrieve message delivery logs
paths:
  /logs:
    get:
      operationId: getLogs
      summary: Retrieve message delivery logs
      description: Retrieve logs of message delivery attempts, statuses, and events for debugging and auditing purposes.
      tags:
      - Logs
      parameters:
      - name: cursor
        in: query
        description: Pagination cursor from a previous response
        schema:
          type: string
      - name: filter
        in: query
        description: Filter expression for logs
        schema:
          type: string
      responses:
        '200':
          description: Message delivery logs
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/LogsResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
components:
  schemas:
    ErrorResponse:
      type: object
      properties:
        error:
          type: string
          description: Human-readable error message
    LogsResponse:
      type: object
      properties:
        cursor:
          type: string
          description: Pagination cursor for the next page
        messages:
          type: array
          items:
            $ref: '#/components/schemas/LogEntry'
    LogEntry:
      type: object
      properties:
        messageId:
          type: string
          description: Message identifier
        url:
          type: string
          description: Delivery destination URL
        state:
          type: string
          description: Current message state
          enum:
          - CREATED
          - ACTIVE
          - DELIVERED
          - ERROR
          - RETRY
          - CANCEL_REQUESTED
          - CANCELLED
        createdAt:
          type: integer
          description: Unix timestamp of message creation
        nextDeliveryTime:
          type: integer
          description: Unix timestamp of next scheduled delivery attempt
        notBefore:
          type: integer
          description: Unix timestamp before which delivery will not be attempted
        scheduleId:
          type: string
          description: Associated schedule ID if applicable
        topicName:
          type: string
          description: URL Group name if delivered via URL Group
        responseStatus:
          type: integer
          description: HTTP status code from last delivery attempt
        retried:
          type: integer
          description: Number of delivery attempts made so far
        maxRetries:
          type: integer
          description: Maximum configured retry attempts
  responses:
    Unauthorized:
      description: Missing or invalid authentication token
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      description: Bearer token obtained from the Upstash console at https://console.upstash.com/qstash. Alternatively, pass as query parameter `qstash_token`.
externalDocs:
  description: QStash Documentation
  url: https://upstash.com/docs/qstash/overall/getstarted