---
title: "Gets information about a regular expression entity in a version of the application."
method: GET
path: "/apps/{appId}/versions/{versionId}/regexentities/{regexEntityId}"
---

# Gets information about a regular expression entity in a version of the application.

`GET /apps/{appId}/versions/{versionId}/regexentities/{regexEntityId}`

## Request

- Base URL: `{Endpoint}/luis/authoring/v3.0-preview`
- URL: `{Endpoint}/luis/authoring/v3.0-preview/apps/{appId}/versions/{versionId}/regexentities/{regexEntityId}`
- Auth: API key in header `Ocp-Apim-Subscription-Key`

## Path parameters

- `appId` string, uuid, required
- `versionId` string, required
- `regexEntityId` string, uuid, required

## Response `200`

A regular expression entity model info.

- RegexEntityExtractor: Base type used in entity types.
  - `id` string, uuid, required: The ID of the Entity Model.
  - `name` string: Name of the Entity Model.
  - `typeId` integer: The type ID of the Entity Model.
  - `readableType` 'Entity Extractor' | 'Child Entity Extractor' | 'Hierarchical Entity Extractor' | 'Hierarchical Child Entity Extractor' | 'Composite Entity Extractor' | 'List Entity Extractor' | 'Prebuilt Entity Extractor' | 'Intent Classifier' | 'Pattern.Any Entity Extractor' | 'Closed List Entity Extractor' | 'Regex Entity Extractor', required: Full name of the entity type.
  - `roles` EntityRole[]: List of Pattern.Any Entity Extractors.
    - `id` string, uuid: The entity role ID.
    - `name` string: The entity role name.
  - `regexPattern` string: The Regular Expression entity pattern.

## Other responses

- `default`: Error Response.

---

[API](https://skmtc.dev/azure/apis/luis-authoring-client.md) - [All operations](https://skmtc.dev/azure/apis/luis-authoring-client/llms.txt) - [OpenAPI document](https://skmtc.dev/azure/apis/luis-authoring-client/revisions/a26a0f7e5a37?raw)