---
title: "Check for structural variants"
method: GET
path: "/sessions/{session_id}/variants/sv-presence"
tags: ["variants"]
---

# Check for structural variants

`GET /sessions/{session_id}/variants/sv-presence`

## Request

- Base URL: `https://api.helena.bio` (the document declares no server; this is the origin it was published from)
- URL: `https://api.helena.bio/sessions/{session_id}/variants/sv-presence`
- Auth: none declared

Check whether the complete session contains an SV-typed row

## Path parameters

- `session_id` string, uuid, required

## Response `200`

Successful Response

- SvPresenceResponse: Whether any row in the complete session has a non-null SV type.
  - `has_sv` boolean, required

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/helena/apis/helix-insight-variant-analysis-service.md) · [All operations](https://skmtc.dev/helena/apis/helix-insight-variant-analysis-service/llms.txt) · [OpenAPI document](https://skmtc.dev/helena/apis/helix-insight-variant-analysis-service/revisions/fe51fd20cdf1?raw)