---
title: "Execute saved mapping"
method: POST
path: "/Mapping/{mappingId}"
tags: ["Mapping"]
---

# Execute saved mapping

`POST /Mapping/{mappingId}`

Invokes the saved mapping transform. The request body is treated as the input, converted according to the request Content-Type.

## Path parameters

- `mappingId` string, required

## Query parameters

- `verbose` 'true' | '1'

## Request body

- object

## Response `200`

Mapping result (any JSON). When `?verbose` is enabled, returns a VerboseReport.

## Other responses

- `206` — Partial result
- `404` — Mapping not found
- `415` — Unsupported media type
- `422` — Compilation, transform, or evaluation failure

## Changes

- **2026-02-17** `de8a090b44bf` — 3 breaking
  - response property `line` list-of-types was widened by adding types `string` to media type `application/json` of response `422`
  - response property `position` list-of-types was widened by adding types `string` to media type `application/json` of response `422`
  - response property `start` list-of-types was widened by adding types `string` to media type `application/json` of response `422`
- **2026-02-17** `811964783e7e` — 1 breaking, 5 info
  - the `query` request parameter `verbose` was restricted to a list of enum values
  - added the new enum value `1` to the `query` request parameter `verbose`
  - added the new enum value `true` to the `query` request parameter `verbose`
  - response property `line` list-of-types was narrowed by removing types `string` from media type `application/json` of response `422`
  - …2 more

[Change history](https://skmtc.dev/outburn-il/apis/fume-community-api/changes/Mapping/:mappingId/post.md)

---

[API](https://skmtc.dev/outburn-il/apis/fume-community-api.md) · [All operations](https://skmtc.dev/outburn-il/apis/fume-community-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/outburn-il/fume-community-api/revisions/de8a090b44bf/schema)