feat(admin): added admin APIs for admin management

apps/sim/.env.example

@@ -24,3 +24,7 @@ API_ENCRYPTION_KEY=your_api_encryption_key # Use `openssl rand -hex 32` to gener
 # OLLAMA_URL=http://localhost:11434  # URL for local Ollama server - uncomment if using local models
 # VLLM_BASE_URL=http://localhost:8000    # Base URL for your self-hosted vLLM (OpenAI-compatible)
 # VLLM_API_KEY=                          # Optional bearer token if your vLLM instance requires auth
+
+# Admin API (Optional - for self-hosted GitOps)
+# ADMIN_API_KEY=  # Use `openssl rand -hex 32` to generate. Enables admin API for workflow export/import.
+                  # Usage: curl -H "x-admin-key: your_key" https://your-instance/api/v1/admin/workspaces

apps/sim/app/api/v1/admin/auth.ts

@@ -0,0 +1,79 @@
+/**
+ * Admin API Authentication
+ *
+ * Authenticates admin API requests using the ADMIN_API_KEY environment variable.
+ * Designed for self-hosted deployments where GitOps/scripted access is needed.
+ *
+ * Usage:
+ *   curl -H "x-admin-key: your_admin_key" https://your-instance/api/v1/admin/...
+ */
+
+import { createHash, timingSafeEqual } from 'crypto'
+import type { NextRequest } from 'next/server'
+import { env } from '@/lib/core/config/env'
+import { createLogger } from '@/lib/logs/console/logger'
+
+const logger = createLogger('AdminAuth')
+
+export interface AdminAuthSuccess {
+  authenticated: true
+}
+
+export interface AdminAuthFailure {
+  authenticated: false
+  error: string
+  notConfigured?: boolean
+}
+
+export type AdminAuthResult = AdminAuthSuccess | AdminAuthFailure
+
+/**
+ * Authenticate an admin API request.
+ *
+ * @param request - The incoming Next.js request
+ * @returns Authentication result with success status and optional error
+ */
+export function authenticateAdminRequest(request: NextRequest): AdminAuthResult {
+  const adminKey = env.ADMIN_API_KEY
+
+  if (!adminKey) {
+    logger.warn('ADMIN_API_KEY environment variable is not set')
+    return {
+      authenticated: false,
+      error: 'Admin API is not configured. Set ADMIN_API_KEY environment variable.',
+      notConfigured: true,
+    }
+  }
+
+  const providedKey = request.headers.get('x-admin-key')
+
+  if (!providedKey) {
+    return {
+      authenticated: false,
+      error: 'Admin API key required. Provide x-admin-key header.',
+    }
+  }
+
+  if (!constantTimeCompare(providedKey, adminKey)) {
+    logger.warn('Invalid admin API key attempted', { keyPrefix: providedKey.slice(0, 8) })
+    return {
+      authenticated: false,
+      error: 'Invalid admin API key',
+    }
+  }
+
+  return { authenticated: true }
+}
+
+/**
+ * Constant-time string comparison.
+ *
+ * @param a - First string to compare
+ * @param b - Second string to compare
+ * @returns True if strings are equal, false otherwise
+ */
+function constantTimeCompare(a: string, b: string): boolean {
+  const aHash = createHash('sha256').update(a).digest()
+  const bHash = createHash('sha256').update(b).digest()
+  return timingSafeEqual(aHash, bHash)
+}

apps/sim/app/api/v1/admin/index.ts

@@ -0,0 +1,79 @@
+/**
+ * Admin API v1
+ *
+ * A RESTful API for administrative operations on Sim.
+ *
+ * Authentication:
+ *   Set ADMIN_API_KEY environment variable and use x-admin-key header.
+ *
+ * Endpoints:
+ *   GET    /api/v1/admin/users                    - List all users
+ *   GET    /api/v1/admin/users/:id                - Get user details
+ *   GET    /api/v1/admin/workspaces               - List all workspaces
+ *   GET    /api/v1/admin/workspaces/:id           - Get workspace details
+ *   GET    /api/v1/admin/workspaces/:id/workflows - List workspace workflows
+ *   DELETE /api/v1/admin/workspaces/:id/workflows - Delete all workspace workflows
+ *   GET    /api/v1/admin/workspaces/:id/folders   - List workspace folders
+ *   GET    /api/v1/admin/workspaces/:id/export    - Export workspace (ZIP/JSON)
+ *   POST   /api/v1/admin/workspaces/:id/import    - Import into workspace
+ *   GET    /api/v1/admin/workflows                - List all workflows
+ *   GET    /api/v1/admin/workflows/:id            - Get workflow details
+ *   DELETE /api/v1/admin/workflows/:id            - Delete workflow
+ *   GET    /api/v1/admin/workflows/:id/export     - Export workflow (JSON)
+ *   POST   /api/v1/admin/workflows/import         - Import single workflow
+ */
+
+export type { AdminAuthFailure, AdminAuthResult, AdminAuthSuccess } from '@/app/api/v1/admin/auth'
+export { authenticateAdminRequest } from '@/app/api/v1/admin/auth'
+export type { AdminRouteHandler, AdminRouteHandlerWithParams } from '@/app/api/v1/admin/middleware'
+export { withAdminAuth, withAdminAuthParams } from '@/app/api/v1/admin/middleware'
+export {
+  badRequestResponse,
+  errorResponse,
+  forbiddenResponse,
+  internalErrorResponse,
+  listResponse,
+  notConfiguredResponse,
+  notFoundResponse,
+  singleResponse,
+  unauthorizedResponse,
+} from '@/app/api/v1/admin/responses'
+export type {
+  AdminErrorResponse,
+  AdminFolder,
+  AdminListResponse,
+  AdminSingleResponse,
+  AdminUser,
+  AdminWorkflow,
+  AdminWorkflowDetail,
+  AdminWorkspace,
+  AdminWorkspaceDetail,
+  DbUser,
+  DbWorkflow,
+  DbWorkflowFolder,
+  DbWorkspace,
+  FolderExportPayload,
+  ImportResult,
+  PaginationMeta,
+  PaginationParams,
+  VariableType,
+  WorkflowExportPayload,
+  WorkflowExportState,
+  WorkflowImportRequest,
+  WorkflowVariable,
+  WorkspaceExportPayload,
+  WorkspaceImportRequest,
+  WorkspaceImportResponse,
+} from '@/app/api/v1/admin/types'
+export {
+  createPaginationMeta,
+  DEFAULT_LIMIT,
+  extractWorkflowMetadata,
+  MAX_LIMIT,
+  parsePaginationParams,
+  parseWorkflowVariables,
+  toAdminFolder,
+  toAdminUser,
+  toAdminWorkflow,
+  toAdminWorkspace,
+} from '@/app/api/v1/admin/types'

apps/sim/app/api/v1/admin/middleware.ts

@@ -0,0 +1,50 @@
+import type { NextRequest, NextResponse } from 'next/server'
+import { authenticateAdminRequest } from '@/app/api/v1/admin/auth'
+import { notConfiguredResponse, unauthorizedResponse } from '@/app/api/v1/admin/responses'
+
+export type AdminRouteHandler = (request: NextRequest) => Promise<NextResponse>
+
+export type AdminRouteHandlerWithParams<TParams> = (
+  request: NextRequest,
+  context: { params: Promise<TParams> }
+) => Promise<NextResponse>
+
+/**
+ * Wrap a route handler with admin authentication.
+ * Returns early with an error response if authentication fails.
+ */
+export function withAdminAuth(handler: AdminRouteHandler): AdminRouteHandler {
+  return async (request: NextRequest) => {
+    const auth = authenticateAdminRequest(request)
+
+    if (!auth.authenticated) {
+      if (auth.notConfigured) {
+        return notConfiguredResponse()
+      }
+      return unauthorizedResponse(auth.error)
+    }
+
+    return handler(request)
+  }
+}
+
+/**
+ * Wrap a route handler with params with admin authentication.
+ * Returns early with an error response if authentication fails.
+ */
+export function withAdminAuthParams<TParams>(
+  handler: AdminRouteHandlerWithParams<TParams>
+): AdminRouteHandlerWithParams<TParams> {
+  return async (request: NextRequest, context: { params: Promise<TParams> }) => {
+    const auth = authenticateAdminRequest(request)
+
+    if (!auth.authenticated) {
+      if (auth.notConfigured) {
+        return notConfiguredResponse()
+      }
+      return unauthorizedResponse(auth.error)
+    }
+
+    return handler(request, context)
+  }
+}

apps/sim/app/api/v1/admin/responses.ts

@@ -0,0 +1,82 @@
+/**
+ * Admin API Response Helpers
+ *
+ * Consistent response formatting for all Admin API endpoints.
+ */
+
+import { NextResponse } from 'next/server'
+import type {
+  AdminErrorResponse,
+  AdminListResponse,
+  AdminSingleResponse,
+  PaginationMeta,
+} from '@/app/api/v1/admin/types'
+
+/**
+ * Create a successful list response with pagination
+ */
+export function listResponse<T>(
+  data: T[],
+  pagination: PaginationMeta
+): NextResponse<AdminListResponse<T>> {
+  return NextResponse.json({ data, pagination })
+}
+
+/**
+ * Create a successful single resource response
+ */
+export function singleResponse<T>(data: T): NextResponse<AdminSingleResponse<T>> {
+  return NextResponse.json({ data })
+}
+
+/**
+ * Create an error response
+ */
+export function errorResponse(
+  code: string,
+  message: string,
+  status: number,
+  details?: unknown
+): NextResponse<AdminErrorResponse> {
+  const body: AdminErrorResponse = {
+    error: { code, message },
+  }
+
+  if (details !== undefined) {
+    body.error.details = details
+  }
+
+  return NextResponse.json(body, { status })
+}
+
+// =============================================================================
+// Common Error Responses
+// =============================================================================
+
+export function unauthorizedResponse(message = 'Authentication required'): NextResponse {
+  return errorResponse('UNAUTHORIZED', message, 401)
+}
+
+export function forbiddenResponse(message = 'Access denied'): NextResponse {
+  return errorResponse('FORBIDDEN', message, 403)
+}
+
+export function notFoundResponse(resource: string): NextResponse {
+  return errorResponse('NOT_FOUND', `${resource} not found`, 404)
+}
+
+export function badRequestResponse(message: string, details?: unknown): NextResponse {
+  return errorResponse('BAD_REQUEST', message, 400, details)
+}
+
+export function internalErrorResponse(message = 'Internal server error'): NextResponse {
+  return errorResponse('INTERNAL_ERROR', message, 500)
+}
+
+export function notConfiguredResponse(): NextResponse {
+  return errorResponse(
+    'NOT_CONFIGURED',
+    'Admin API is not configured. Set ADMIN_API_KEY environment variable.',
+    503
+  )
+}