---
title: "List file extensions used in project"
method: GET
path: "/hubs/{HubHashId}/projects/{ProjectId}/file_extensions"
tags: ["Project"]
---

# List file extensions used in project

`GET /hubs/{HubHashId}/projects/{ProjectId}/file_extensions`

Retrieve a distinct list of all file extensions currently used in the project's documents.

## Path parameters

- `HubHashId` string, required
- `ProjectId` integer, required

## Query parameters

- `UserName` string
- `IsFromSystem` boolean
- `AccessToken` string

## Response `200`

OK

- FeaturesProjectsGetFileExtensionsGetFileExtensionsResponse
  - `fileExtensions` string[], nullable
  - `hasFilesWithoutExtensions` boolean

## Other responses

- `307` — According to the hub id, the request is at the wrong datacenter. Please retry with the URL in the "Location" header.
- `401` — The request is not authenticated.
- `402` — Insufficient subscription plan
- `403` — You don't have access to the project.
- `404` — The project doesn't exist.

---

[API](https://skmtc.net/bimtrackapp/apis/newforma-konekt-document-control-api.md) · [All operations](https://skmtc.net/bimtrackapp/apis/newforma-konekt-document-control-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/bimtrackapp/newforma-konekt-document-control-api/versions/4671d430ce39/schema)