---
title: "Return a single role mapping"
method: GET
path: "/admin/roleMappings/{principalId}"
tags: ["Admin"]
---

# Return a single role mapping

`GET /admin/roleMappings/{principalId}`

Gets the details of a single role mapping (by `principalId`).

This operation can fail for the following reasons:

* No role mapping for the `principalId` exists (HTTP error `404`)
* A server error occurred (HTTP error `500`)

## Response `200`

When successful, returns the details of a role mapping.

- RoleMapping — The mapping between a user/principal and their role.
  - `principalId` string, required
  - `role` 'READ_ONLY' | 'DEVELOPER' | 'ADMIN', required
  - `principalName` string — A friendly name for the principal.

## Other responses

- `401` — Common response for all operations that can return a `401` error indicating authentication is required.
- `403` — Common response for all operations that can return a `403` error indicating the user is authenticated but not authorized.
- `404` — Common response for all operations that can return a `404` error.
- `500` — Common response for all operations that can fail with an unexpected server error.

---

[API](https://skmtc.net/apicurio/apis/apicurio-registry-api-v3.md) · [All operations](https://skmtc.net/apicurio/apis/apicurio-registry-api-v3/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/apicurio/apicurio-registry-api-v3/revisions/c39cb56d7dbc/schema)