---
title: "Precompute Diff"
method: GET
path: "/v2/precompute/diff/{name}"
tags: ["Precompute Internal"]
---

# Precompute Diff

`GET /v2/precompute/diff/{name}`

What the published payload added against the version archived before it.

Reads Postgres and Redis, never the graph. Decoding two payloads is seconds
of CPU for the entity store, which is why this is one artifact per call and
invoked when an operator opens a row.

## Path parameters

- `name` string, required

## Response `200`

Successful Response

- unknown

## Other responses

- `404` — Not Found
- `422` — Validation Error

---

[API](https://skmtc.net/carbonarc/apis/carbon-arc-api-documentation.md) · [All operations](https://skmtc.net/carbonarc/apis/carbon-arc-api-documentation/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/carbonarc/carbon-arc-api-documentation/versions/bd33ea42994c/schema)