---
title: "Get Case Agent Session Interaction Backfill"
method: GET
path: "/admin/maintenance/case-agent-session-interactions/backfill/{operation_id}"
tags: ["admin:maintenance"]
---

# Get Case Agent Session Interaction Backfill

`GET /admin/maintenance/case-agent-session-interactions/backfill/{operation_id}`

## Request

- Base URL: `https://platform.tracecat.com/api`
- URL: `https://platform.tracecat.com/api/admin/maintenance/case-agent-session-interactions/backfill/{operation_id}`
- Auth: API key in cookie `fastapiusersauth`

Poll a durable historical case-mutation backfill.

## Path parameters

- `operation_id` string, uuid, required

## Response `200`

Successful Response

- CaseAgentSessionInteractionBackfillStatusResponse: Current state and optional result of the durable backfill.
  - `operation_id` string, uuid, required
  - `status` 'running' | 'completed' | 'failed', required: Lifecycle state for the durable backfill operation.
  - `report` CaseAgentSessionInteractionBackfillResponse: Aggregate result of the historical interaction backfill.
    - `batches_processed` integer, required
    - `sessions_scanned` integer, required
    - `history_rows_scanned` integer, required
    - `mutation_candidates` integer, required
    - `inserted` integer, required
    - `existing` integer, required
    - `skipped` object, required

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/tracecat/apis/tracecat-api.md) - [All operations](https://skmtc.dev/tracecat/apis/tracecat-api/llms.txt) - [OpenAPI document](https://skmtc.dev/tracecat/apis/tracecat-api/revisions/2efdda25045f?raw)