> ## Documentation Index
> Fetch the complete documentation index at: https://docs.e6data.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Global operation history

> global operation history. GET /api/v1/operations. Uses the same payload, validation, revision checks and response as the unified HTTP API.

ReferenceApplies to: Unified engine deployments

## Related guidance

[Addresses and access](https://docs.e6data.com/transformation/http/access.md) · [Request identity](https://docs.e6data.com/transformation/http/request-identity.md) · [Errors and recovery](https://docs.e6data.com/transformation/http/errors.md) · [Pagination and results](https://docs.e6data.com/transformation/http/results.md)


## OpenAPI

````yaml openapi/transformation.json GET /api/v1/operations
openapi: 3.1.0
info:
  description: >-
    HTTP contracts for the Unified engine. Requests use the connected
    deployment's access model and configured owner. Response examples are
    illustrative; inspect your engine response in your client. SQL-managed
    secrets, credentials, streaming pipelines and maintenance run through
    session operations.
  title: Laminar Unified HTTP API
  version: v1
servers:
  - url: https://engine.example.com
    description: >-
      Example engine origin. Replace it with your deployment URL and any API
      mount prefix.
security: []
paths:
  /api/v1/operations:
    get:
      tags:
        - Observability
      summary: global operation history
      description: >-
        global operation history. GET /api/v1/operations. Uses the same payload,
        validation, revision checks and response as the unified HTTP API.
      operationId: global_operation_history
      parameters:
        - in: query
          name: continuation_token
          required: false
          schema:
            type: string
        - in: query
          name: end_unix_millis
          required: false
          schema:
            minimum: 0
            type: integer
        - in: query
          name: limit
          required: false
          schema:
            description: >-
              Page size, bounded by the server. For query results this counts
              Arrow batches, default 1.
            minimum: 1
            type: integer
        - in: query
          name: live
          required: false
          schema:
            type: boolean
        - in: query
          name: max_duration_millis
          required: false
          schema:
            minimum: 0
            type: integer
        - in: query
          name: min_duration_millis
          required: false
          schema:
            minimum: 0
            type: integer
        - in: query
          name: q
          required: false
          schema:
            type: string
        - in: query
          name: session_id
          required: false
          schema:
            type: string
        - in: query
          name: source
          required: false
          schema:
            type: string
        - in: query
          name: start_unix_millis
          required: false
          schema:
            minimum: 0
            type: integer
        - in: query
          name: status
          required: false
          schema:
            type: string
        - in: query
          name: workload_id
          required: false
          schema:
            type: string
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: >-
                  #/components/schemas/frontend_session_src_models_rs_GlobalOperationListResponse
          description: Successful response.
        default:
          content:
            application/json:
              example:
                error:
                  code: invalid_request
                  message: Check the request fields
              schema:
                $ref: '#/components/schemas/ApiError'
          description: A rejected or failed request. Inspect error.code before retrying.
components:
  schemas:
    frontend_session_src_models_rs_GlobalOperationListResponse:
      properties:
        continuation_token:
          anyOf:
            - type: string
            - type: 'null'
        operations:
          items:
            $ref: >-
              #/components/schemas/frontend_session_src_models_rs_OperationSummary
          type: array
      required:
        - operations
        - continuation_token
      type: object
    ApiError:
      properties:
        error:
          properties:
            code:
              type: string
            message:
              type: string
          required:
            - code
            - message
          type: object
      required:
        - error
      type: object
    frontend_session_src_models_rs_OperationSummary:
      properties:
        binding:
          anyOf:
            - $ref: >-
                #/components/schemas/frontend_session_src_models_rs_OperationBinding
            - type: 'null'
        completed_at:
          anyOf:
            - $ref: >-
                #/components/schemas/shared_common_src_time_rs_WallClockTimestamp
            - type: 'null'
        created_at:
          $ref: '#/components/schemas/shared_common_src_time_rs_WallClockTimestamp'
        operation_id:
          format: uuid
          type: string
        server_session_id:
          format: uuid
          type: string
        session_id:
          format: uuid
          type: string
        source:
          type: string
        sql:
          anyOf:
            - type: string
            - type: 'null'
        status:
          $ref: '#/components/schemas/frontend_session_src_models_rs_OperationStatus'
          description: >-
            The last state durably recorded by Session. Read operation status
            for live engine state.
        updated_at:
          $ref: '#/components/schemas/shared_common_src_time_rs_WallClockTimestamp'
        workload_id:
          anyOf:
            - $ref: '#/components/schemas/shared_common_src_lib_rs_WorkloadId'
            - type: 'null'
      required:
        - source
        - session_id
        - server_session_id
        - operation_id
        - status
        - sql
        - created_at
        - updated_at
        - completed_at
        - workload_id
        - binding
      type: object
    frontend_session_src_models_rs_OperationBinding:
      properties:
        task_run_id:
          $ref: '#/components/schemas/shared_common_src_lib_rs_TaskRunId'
        workload_id:
          $ref: '#/components/schemas/shared_common_src_lib_rs_WorkloadId'
        workload_run_id:
          $ref: '#/components/schemas/shared_common_src_lib_rs_WorkloadRunId'
      required:
        - workload_id
        - workload_run_id
        - task_run_id
      type: object
    shared_common_src_time_rs_WallClockTimestamp:
      properties:
        unix_millis:
          type: integer
      required:
        - unix_millis
      type: object
    frontend_session_src_models_rs_OperationStatus:
      oneOf:
        - const: Cancelling
          type: string
        - const: Cancelled
          type: string
        - const: Prepared
          type: string
        - const: Accepted
          type: string
        - const: Running
          type: string
        - const: Succeeded
          type: string
        - const: Failed
          type: string
    shared_common_src_lib_rs_WorkloadId:
      format: uuid
      type: string
    shared_common_src_lib_rs_TaskRunId:
      format: uuid
      type: string
    shared_common_src_lib_rs_WorkloadRunId:
      format: uuid
      type: string

````

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