---
title: "Update function"
method: PUT
path: "/api/{org_id}/functions/{name}"
tags: ["Functions"]
---

# Update function

`PUT /api/{org_id}/functions/{name}`

## Request

- Base URL: `https://api.openobserve.ai` (the document declares no server; this is the origin it was published from)
- URL: `https://api.openobserve.ai/api/{org_id}/functions/{name}`
- Auth: API key in header `Authorization`
- TypeScript: <https://skmtc.dev/openobserve/apis/openobserve-api-http/docs/api/:org_id/functions/:name/put.ts> (a function with typed inputs; its response is checked against the schema)

Updates an existing transformation function with new VRL code, parameters, or configuration settings. Changes take effect immediately and apply to all data processing pipelines currently using this function. Test function changes thoroughly before deployment to avoid data transformation errors in production pipelines.

## Path parameters

- `org_id` string, required
- `name` string, required

## Request body

- object
  - `function` string, required
  - `name` string
  - `numArgs` integer
  - `params` string
  - `streams` StreamOrder[], nullable
    - `applyBeforeFlattening` boolean
    - `isRemoved` boolean
    - `order` integer
    - `stream` string
    - `streamType` 'logs' | 'metrics' | 'traces' | 'profiles' | 'service_graph' | 'enrichment_tables' | 'file_list' | 'metadata' | 'index'
  - `transType` integer, nullable

## Response `200`

Success

- union
  - Transform
    - `function` string, required
    - `name` string
    - `numArgs` integer
    - `params` string
    - `streams` StreamOrder[], nullable
      - `applyBeforeFlattening` boolean
      - `isRemoved` boolean
      - `order` integer
      - `stream` string
      - `streamType` 'logs' | 'metrics' | 'traces' | 'profiles' | 'service_graph' | 'enrichment_tables' | 'file_list' | 'metadata' | 'index'
    - `transType` integer, nullable
  - HttpResponse: HTTP response code 200 is success code 400 is error code 404 is not found code 500 is internal server error code 503 is service unavailable code >= 1000 is custom error code message is the message or error message
    - `code` integer, required
    - `error_detail` string, nullable
    - `hint` string, nullable: One-line guidance on how to fix the error (agent self-correction, D4).
    - `id` string, nullable
    - `message` string, required
    - `name` string, nullable
    - `suggestions` string[], nullable: Closest valid alternatives for a mistyped field/function name.
    - `trace_id` string, nullable
    - `warnings` string[], nullable: Problems with a request that succeeded anyway. Distinct from `hint`, which explains a failure: these accompany a 200, and the caller is entitled to have meant it.

## Other responses

- `400`: Failure

---

[API](https://skmtc.dev/openobserve/apis/openobserve-api-http.md) - [All operations](https://skmtc.dev/openobserve/apis/openobserve-api-http/llms.txt) - [OpenAPI document](https://skmtc.dev/openobserve/apis/openobserve-api-http/revisions/0529b8a10252?raw)