---
title: "Evaluate the FeatureScript snippet for a Part Studio."
method: POST
path: "/partstudios/d/{did}/{wvm}/{wvmid}/e/{eid}/featurescript"
tags: ["PartStudio"]
---

# Evaluate the FeatureScript snippet for a Part Studio.

`POST /partstudios/d/{did}/{wvm}/{wvmid}/e/{eid}/featurescript`

See [API Guide: Evaluating FeatureScript](https://onshape-public.github.io/docs/api-adv/fs/) for more details. 
 
Note that only lambda expressions can be evaulated with this endpoint.

## Path parameters

- `did` string, required
- `wvm` 'w' | 'v' | 'm', required
- `wvmid` string, required
- `eid` string, required

## Query parameters

- `linkDocumentId` string
- `configuration` string
- `rollbackBarIndex` integer
- `elementMicroversionId` string

## Response `default`

default response

## Changes

- **2026-08-29** `5fa7a57a26dd` — 15 warning
  - added the new `CUSTOM_STANDARD_CONTENT_TAG_BODIES_ALREADY_TAGGED` enum value to the `notices/items/expressionErrorInfo/errorMessageIdentifier` response property for the response status `default`
  - added the new `CUSTOM_STANDARD_CONTENT_TAG_NO_FEATURE_PATTERN` enum value to the `notices/items/expressionErrorInfo/errorMessageIdentifier` response property for the response status `default`
  - added the new `CUSTOM_STANDARD_CONTENT_TAG_PART_NOT_SOLID` enum value to the `notices/items/expressionErrorInfo/errorMessageIdentifier` response property for the response status `default`
  - added the new `CUSTOM_STANDARD_CONTENT_TAG_SELECT_SOMETHING` enum value to the `notices/items/expressionErrorInfo/errorMessageIdentifier` response property for the response status `default`
  - …11 more

[Change history](https://skmtc.dev/onshape/apis/onshape-rest-api/changes/partstudios/d/:did/:wvm/:wvmid/e/:eid/featurescript/post.md)

---

[API](https://skmtc.dev/onshape/apis/onshape-rest-api.md) · [All operations](https://skmtc.dev/onshape/apis/onshape-rest-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/onshape/onshape-rest-api/revisions/5fa7a57a26dd/schema)