---
title: "Compare two transformation versions"
method: GET
path: "/api/v1/projects/{projectId}/transformations/{id}/versions/diff"
tags: ["Transformations"]
---

# Compare two transformation versions

`GET /api/v1/projects/{projectId}/transformations/{id}/versions/diff`

## Request

- Base URL: `http://localhost:8080`
- URL: `http://localhost:8080/api/v1/projects/{projectId}/transformations/{id}/versions/diff`
- Auth: one of:
  - HTTP bearer
  - API key in header `X-API-Key`

Returns both templates whole and the list of places they differ, each named by its JSONPath

## Path parameters

- `projectId` string, uuid, required
- `id` string, uuid, required

## Query parameters

- `left` integer, required
- `right` integer, required

## Response `200`

OK

---

[API](https://skmtc.dev/railhook/apis/railhook-api.md) · [All operations](https://skmtc.dev/railhook/apis/railhook-api/llms.txt) · [OpenAPI document](https://skmtc.dev/railhook/apis/railhook-api/revisions/4e2c76dfc33d?raw)