> ## Documentation Index > Fetch the complete documentation index at: https://docs.lmrp.uk/llms.txt > Use this file to discover all available pages before exploring further. # Create or update staff membership > **Permission:** `admin.manage`. **Access:** Browser session only. Creates the user's staff profile if needed, sets whether it is active, and replaces its roles with `roleIds`, all in one transaction. Audited as `staff.membership.changed`. Administrators cannot change their own membership. ## OpenAPI ````yaml /api-reference/openapi.json post /staff openapi: 3.1.0 info: title: Argus API version: 0.1.0 summary: The HTTP API behind the Argus web application. description: >- Argus is the operations platform for the UK London Mayfair ER:LC community. This document describes the API its own web application uses. **This is an internal application API.** It is not a stable public API: paths, fields and behaviour can change with any release, there is no versioning, and browser requests are tied to the application's own origin. Scoped service credentials exist for the community's own integrations. All paths are relative to `/api` on the deployment's origin. Responses are JSON, never cacheable, and carry an `X-Request-Id` header. servers: - url: http://localhost:3000/api description: Local development - url: '{origin}/api' description: A deployment. `origin` is that deployment's `APP_URL`. variables: origin: default: https://argus.example.org description: The application's public origin, with no trailing slash. security: [] tags: - name: Authentication description: >- Discord sign-in, Roblox account linking, the current user, and temporary Developer Access. - name: CAD Incidents description: >- Control's incidents: creation, editing, closure, and dispatching units to them. - name: CAD Units description: Control's view of operational units and their crew. - name: CAD Calls description: Incoming calls and how they become, or join, incidents. - name: CAD Events description: The append-only operational history. - name: MDT description: >- Self-service for the people crewing a unit: booking on and off, joining a unit, and changing its status. - name: Civilians description: 'The civilian portal: a member''s own characters, licences and vehicles.' - name: PNC Lookup description: >- Searching people and vehicles, full records, record history and official vehicle status. - name: PNC Licences description: Official changes to driving licences. - name: PNC Records description: Official records attached to people. - name: PNC Warrants description: Warrants and their lifecycle. - name: PNC Markers description: Markers and BOLOs on people and vehicles. - name: Staff description: Staff profiles and role membership. - name: Shifts description: Staff shifts. - name: Sessions description: Operational roleplay sessions. - name: Moderation description: Warnings, kicks and bans, with their delivery state. - name: Audit description: The append-only audit log. - name: Administration description: Accounts, roles and service credentials. - name: ERLC x-displayName: ER:LC description: Live data from the ER:LC private server. paths: /staff: post: tags: - Staff summary: Create or update staff membership description: >- **Permission:** `admin.manage`. **Access:** Browser session only. Creates the user's staff profile if needed, sets whether it is active, and replaces its roles with `roleIds`, all in one transaction. Audited as `staff.membership.changed`. Administrators cannot change their own membership. operationId: saveStaffMembership requestBody: required: true content: application/json: schema: type: object properties: userId: $ref: '#/components/schemas/Id' roleIds: type: array items: $ref: '#/components/schemas/Id' maxItems: 20 active: type: boolean default: true required: - userId - roleIds additionalProperties: false example: userId: cmg5x1k2a0000l508a1b2c3d4 roleIds: - cmg5x0aaa0003l508role0001 active: true responses: '200': description: Success. headers: X-Request-Id: $ref: '#/components/headers/RequestId' content: application/json: schema: type: object properties: data: $ref: '#/components/schemas/StaffProfile' required: - data example: data: id: cmg5x1k2a0001l5089f8e7d6c userId: cmg5x1k2a0000l508a1b2c3d4 active: true createdAt: '2026-10-06T19:30:00.000Z' updatedAt: '2026-10-06T19:30:00.000Z' '400': description: >- `INVALID_INPUT`: a parameter or body field fails validation; `details` lists each problem. `INVALID_JSON`: the body is missing or is not valid JSON. headers: X-Request-Id: $ref: '#/components/headers/RequestId' content: application/json: schema: $ref: '#/components/schemas/Error' example: error: code: INVALID_INPUT message: Request validation failed. details: - path: - userId message: Invalid input requestId: 3f1c9d5e-7a42-4f0b-9c1e-8b6d2a4e5f70 '401': $ref: '#/components/responses/Unauthenticated' '403': description: >- `FORBIDDEN`: the caller lacks `admin.manage`. `USER_REQUIRED`: the caller is a service credential. `INVALID_ORIGIN`: a browser request whose `Origin` is not the application's own. `ACCOUNT_DISABLED`: the account is suspended or disabled. headers: X-Request-Id: $ref: '#/components/headers/RequestId' content: application/json: schema: $ref: '#/components/schemas/Error' example: error: code: FORBIDDEN message: 'Permission required: admin.manage.' requestId: 3f1c9d5e-7a42-4f0b-9c1e-8b6d2a4e5f70 '409': description: |- `SELF_CHANGE`: `userId` is the caller. `CONFLICT`: the user or one of the roles does not exist. headers: X-Request-Id: $ref: '#/components/headers/RequestId' content: application/json: schema: $ref: '#/components/schemas/Error' example: error: code: SELF_CHANGE message: Administrators cannot change their own staff membership. requestId: 3f1c9d5e-7a42-4f0b-9c1e-8b6d2a4e5f70 '429': $ref: '#/components/responses/RateLimited' default: $ref: '#/components/responses/UnexpectedError' security: - sessionCookie: [] components: schemas: Id: type: string minLength: 1 maxLength: 64 pattern: ^[a-zA-Z0-9_-]+$ description: Argus record identifier. StaffProfile: type: object properties: id: $ref: '#/components/schemas/Id' userId: $ref: '#/components/schemas/Id' active: type: boolean createdAt: type: string format: date-time updatedAt: type: string format: date-time required: - id - userId - active - createdAt - updatedAt Error: type: object properties: error: type: object properties: code: type: string description: Stable machine-readable code. message: type: string details: description: >- Present on some errors. Validation failures carry an array of `{path, message}`; ER:LC failures carry `{availability: "unavailable"}`. required: - code - message requestId: type: string format: uuid description: >- Also sent as the `X-Request-Id` header. Quote it when reporting a problem. required: - error - requestId headers: RequestId: schema: type: string format: uuid description: Identifies this request in server logs. RetryAfter: schema: type: integer minimum: 1 description: Seconds to wait before trying again. responses: Unauthenticated: description: >- `UNAUTHENTICATED`: no session cookie, or an invalid, expired or revoked service credential. `SESSION_EXPIRED`: the session has ended. headers: X-Request-Id: $ref: '#/components/headers/RequestId' content: application/json: schema: $ref: '#/components/schemas/Error' example: error: code: UNAUTHENTICATED message: Sign in to continue. requestId: 3f1c9d5e-7a42-4f0b-9c1e-8b6d2a4e5f70 RateLimited: description: >- `RATE_LIMITED`: more than 180 reads or 60 writes in a minute for this caller. headers: X-Request-Id: $ref: '#/components/headers/RequestId' Retry-After: $ref: '#/components/headers/RetryAfter' content: application/json: schema: $ref: '#/components/schemas/Error' example: error: code: RATE_LIMITED message: Too many requests. requestId: 3f1c9d5e-7a42-4f0b-9c1e-8b6d2a4e5f70 UnexpectedError: description: >- Any other failure, in the same error envelope: `INTERNAL_ERROR` (500), `METHOD_NOT_ALLOWED` (405), `BODY_TOO_LARGE` (413, over 16 KiB) or `UNSUPPORTED_MEDIA_TYPE` (415, body not sent as `application/json`). headers: X-Request-Id: $ref: '#/components/headers/RequestId' content: application/json: schema: $ref: '#/components/schemas/Error' example: error: code: INTERNAL_ERROR message: The request could not be completed. requestId: 3f1c9d5e-7a42-4f0b-9c1e-8b6d2a4e5f70 securitySchemes: sessionCookie: type: apiKey in: cookie name: __Host-argus-session description: >- The opaque session cookie set by Discord sign-in. Named `argus-session` outside production. HttpOnly, so scripts cannot read it; same-origin requests send it automatically. Requests other than GET must also carry an `Origin` header equal to the application's own origin. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.