---
title: "Update Step Code"
method: PUT
path: "/api/v1/steps/{step_id}/code"
tags: ["steps"]
---

# Update Step Code

`PUT /api/v1/steps/{step_id}/code`

Verbatim-save a custom_code step's Python source to S3.

## Path parameters

- `step_id` string, uuid, required

## Request body

- StepCodeUpdate — Verbatim replacement of a custom_code step's Python source.
  - `code` string, required

## Response `200`

Successful Response

- object

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.net/netter/apis/dmi-backend.md) · [All operations](https://skmtc.net/netter/apis/dmi-backend/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/netter/dmi-backend/versions/a59877bf911b/schema)