fix: resolve all TypeScript compilation errors and enable production build

- Fixed missing type imports in lib/api/index.ts
- Updated Zod error property from 'errors' to 'issues' for compatibility
- Added missing lru-cache dependency for performance caching
- Fixed LRU Cache generic type constraints for TypeScript compliance
- Resolved Map iteration ES5 compatibility issues using Array.from()
- Fixed Redis configuration by removing unsupported socket options
- Corrected Prisma relationship naming (auditLogs vs securityAuditLogs)
- Applied type casting for missing database schema fields
- Created missing security types file for enhanced security service
- Disabled deprecated ESLint during build (using Biome for linting)
- Removed deprecated critters dependency and disabled CSS optimization
- Achieved successful production build with all 47 pages generated
This commit is contained in:
2025-07-12 21:53:51 +02:00
parent 041a1cc3ef
commit dd145686e6
51 changed files with 7100 additions and 373 deletions

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/**
* Centralized Authorization System
*
* Provides role-based access control with granular permissions,
* company-level access control, and audit trail integration.
*/
import { AuthorizationError } from "./errors";
import type { APIContext } from "./handler";
/**
* System permissions enumeration
*/
export enum Permission {
// Audit & Security
READ_AUDIT_LOGS = "audit_logs:read",
EXPORT_AUDIT_LOGS = "audit_logs:export",
MANAGE_SECURITY = "security:manage",
// User Management
READ_USERS = "users:read",
MANAGE_USERS = "users:manage",
INVITE_USERS = "users:invite",
// Company Management
READ_COMPANIES = "companies:read",
MANAGE_COMPANIES = "companies:manage",
MANAGE_COMPANY_SETTINGS = "companies:settings",
// Dashboard & Analytics
READ_DASHBOARD = "dashboard:read",
READ_SESSIONS = "sessions:read",
MANAGE_SESSIONS = "sessions:manage",
// System Administration
PLATFORM_ADMIN = "platform:admin",
CACHE_MANAGE = "cache:manage",
SCHEDULER_MANAGE = "schedulers:manage",
// AI & Processing
MANAGE_AI_PROCESSING = "ai:manage",
READ_AI_METRICS = "ai:read",
// Import & Export
IMPORT_DATA = "data:import",
EXPORT_DATA = "data:export",
}
/**
* User roles with their associated permissions
*/
export const ROLE_PERMISSIONS: Record<string, Permission[]> = {
USER: [Permission.READ_DASHBOARD, Permission.READ_SESSIONS],
AUDITOR: [
Permission.READ_DASHBOARD,
Permission.READ_SESSIONS,
Permission.READ_AUDIT_LOGS,
Permission.EXPORT_AUDIT_LOGS,
Permission.READ_AI_METRICS,
],
ADMIN: [
// Inherit USER permissions
Permission.READ_DASHBOARD,
Permission.READ_SESSIONS,
Permission.MANAGE_SESSIONS,
// Inherit AUDITOR permissions
Permission.READ_AUDIT_LOGS,
Permission.EXPORT_AUDIT_LOGS,
Permission.READ_AI_METRICS,
// Admin-specific permissions
Permission.READ_USERS,
Permission.MANAGE_USERS,
Permission.INVITE_USERS,
Permission.MANAGE_COMPANY_SETTINGS,
Permission.MANAGE_SECURITY,
Permission.MANAGE_AI_PROCESSING,
Permission.IMPORT_DATA,
Permission.EXPORT_DATA,
Permission.CACHE_MANAGE,
],
PLATFORM_ADMIN: [
// Include all ADMIN permissions
Permission.READ_DASHBOARD,
Permission.READ_SESSIONS,
Permission.MANAGE_SESSIONS,
Permission.READ_AUDIT_LOGS,
Permission.EXPORT_AUDIT_LOGS,
Permission.READ_AI_METRICS,
Permission.READ_USERS,
Permission.MANAGE_USERS,
Permission.INVITE_USERS,
Permission.MANAGE_COMPANY_SETTINGS,
Permission.MANAGE_SECURITY,
Permission.MANAGE_AI_PROCESSING,
Permission.IMPORT_DATA,
Permission.EXPORT_DATA,
Permission.CACHE_MANAGE,
// Platform-specific permissions
Permission.PLATFORM_ADMIN,
Permission.READ_COMPANIES,
Permission.MANAGE_COMPANIES,
Permission.SCHEDULER_MANAGE,
],
};
/**
* Resource types for company-level access control
*/
export enum ResourceType {
AUDIT_LOG = "audit_log",
SESSION = "session",
USER = "user",
COMPANY = "company",
AI_REQUEST = "ai_request",
}
/**
* Company access validation result
*/
export interface CompanyAccessResult {
allowed: boolean;
reason?: string;
companyId?: string;
}
/**
* Check if a user has a specific permission
*/
export function hasPermission(
userRole: string,
permission: Permission
): boolean {
const rolePermissions = ROLE_PERMISSIONS[userRole];
return rolePermissions?.includes(permission) ?? false;
}
/**
* Check if a user has any of the specified permissions
*/
export function hasAnyPermission(
userRole: string,
permissions: Permission[]
): boolean {
return permissions.some((permission) => hasPermission(userRole, permission));
}
/**
* Check if a user has all of the specified permissions
*/
export function hasAllPermissions(
userRole: string,
permissions: Permission[]
): boolean {
return permissions.every((permission) => hasPermission(userRole, permission));
}
/**
* Get all permissions for a user role
*/
export function getUserPermissions(userRole: string): Permission[] {
return ROLE_PERMISSIONS[userRole] || [];
}
/**
* Validate permission access and throw if unauthorized
*/
export function requirePermission(permission: Permission) {
return (context: APIContext) => {
if (!context.user) {
throw new AuthorizationError("Authentication required");
}
if (!hasPermission(context.user.role, permission)) {
throw new AuthorizationError(`Permission required: ${permission}`);
}
};
}
/**
* Validate any of the specified permissions
*/
export function requireAnyPermission(permissions: Permission[]) {
return (context: APIContext) => {
if (!context.user) {
throw new AuthorizationError("Authentication required");
}
if (!hasAnyPermission(context.user.role, permissions)) {
throw new AuthorizationError(
`One of these permissions required: ${permissions.join(", ")}`
);
}
};
}
/**
* Validate all of the specified permissions
*/
export function requireAllPermissions(permissions: Permission[]) {
return (context: APIContext) => {
if (!context.user) {
throw new AuthorizationError("Authentication required");
}
if (!hasAllPermissions(context.user.role, permissions)) {
throw new AuthorizationError(
`All of these permissions required: ${permissions.join(", ")}`
);
}
};
}
/**
* Check if user can access resources from a specific company
*/
export function validateCompanyAccess(
context: APIContext,
targetCompanyId: string,
resourceType?: ResourceType
): CompanyAccessResult {
if (!context.user) {
return {
allowed: false,
reason: "Authentication required",
};
}
// Platform admins can access all companies
if (context.user.role === "PLATFORM_ADMIN") {
return {
allowed: true,
companyId: targetCompanyId,
};
}
// Regular users can only access their own company's resources
if (context.user.companyId !== targetCompanyId) {
return {
allowed: false,
reason: `Access denied to company ${targetCompanyId}`,
companyId: context.user.companyId,
};
}
return {
allowed: true,
companyId: targetCompanyId,
};
}
/**
* Require company access validation
*/
export function requireCompanyAccess(
targetCompanyId: string,
resourceType?: ResourceType
) {
return (context: APIContext) => {
const accessResult = validateCompanyAccess(
context,
targetCompanyId,
resourceType
);
if (!accessResult.allowed) {
throw new AuthorizationError(accessResult.reason);
}
};
}
/**
* Extract company ID from request and validate access
*/
export function requireCompanyAccessFromRequest(
getCompanyId: (context: APIContext) => string | Promise<string>,
resourceType?: ResourceType
) {
return async (context: APIContext) => {
const companyId = await getCompanyId(context);
const accessResult = validateCompanyAccess(
context,
companyId,
resourceType
);
if (!accessResult.allowed) {
throw new AuthorizationError(accessResult.reason);
}
return companyId;
};
}
/**
* Role hierarchy helper - check if role A is higher than role B
*/
export function isRoleHigherThan(roleA: string, roleB: string): boolean {
const roleHierarchy = {
USER: 1,
AUDITOR: 2,
ADMIN: 3,
PLATFORM_ADMIN: 4,
};
const levelA = roleHierarchy[roleA as keyof typeof roleHierarchy] || 0;
const levelB = roleHierarchy[roleB as keyof typeof roleHierarchy] || 0;
return levelA > levelB;
}
/**
* Check if user can manage another user (role hierarchy)
*/
export function canManageUser(
managerRole: string,
targetUserRole: string
): boolean {
// Platform admins can manage anyone
if (managerRole === "PLATFORM_ADMIN") {
return true;
}
// Admins can manage users and auditors, but not other admins or platform admins
if (managerRole === "ADMIN") {
return ["USER", "AUDITOR"].includes(targetUserRole);
}
// Other roles cannot manage users
return false;
}
/**
* Require user management permission
*/
export function requireUserManagementPermission(targetUserRole: string) {
return (context: APIContext) => {
if (!context.user) {
throw new AuthorizationError("Authentication required");
}
if (!canManageUser(context.user.role, targetUserRole)) {
throw new AuthorizationError(
`Insufficient permissions to manage ${targetUserRole} users`
);
}
};
}
/**
* Create a permission checker function
*/
export function createPermissionChecker(context: APIContext) {
return {
has: (permission: Permission) =>
hasPermission(context.user?.role || "", permission),
hasAny: (permissions: Permission[]) =>
hasAnyPermission(context.user?.role || "", permissions),
hasAll: (permissions: Permission[]) =>
hasAllPermissions(context.user?.role || "", permissions),
require: (permission: Permission) => requirePermission(permission)(context),
requireAny: (permissions: Permission[]) =>
requireAnyPermission(permissions)(context),
requireAll: (permissions: Permission[]) =>
requireAllPermissions(permissions)(context),
canAccessCompany: (companyId: string, resourceType?: ResourceType) =>
validateCompanyAccess(context, companyId, resourceType),
requireCompanyAccess: (companyId: string, resourceType?: ResourceType) =>
requireCompanyAccess(companyId, resourceType)(context),
canManageUser: (targetUserRole: string) =>
canManageUser(context.user?.role || "", targetUserRole),
};
}
/**
* Middleware function to attach permission checker to context
*/
export function withPermissions<T extends APIContext>(
context: T
): T & { permissions: ReturnType<typeof createPermissionChecker> } {
return {
...context,
permissions: createPermissionChecker(context),
};
}

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/**
* Centralized API Error Handling System
*
* Provides consistent error types, status codes, and error handling
* across all API endpoints with proper logging and security considerations.
*/
import { NextResponse } from "next/server";
import { ZodError } from "zod";
import { createErrorResponse } from "./response";
/**
* Base API Error class
*/
export class APIError extends Error {
constructor(
message: string,
public readonly statusCode: number = 500,
public readonly code: string = "INTERNAL_ERROR",
public readonly details?: any,
public readonly logLevel: "info" | "warn" | "error" = "error"
) {
super(message);
this.name = "APIError";
// Maintain proper stack trace
if (Error.captureStackTrace) {
Error.captureStackTrace(this, APIError);
}
}
}
/**
* Validation Error - for input validation failures
*/
export class ValidationError extends APIError {
constructor(errors: string[] | ZodError) {
const errorMessages = Array.isArray(errors)
? errors
: errors.issues.map(
(issue) => `${issue.path.join(".")}: ${issue.message}`
);
super("Validation failed", 400, "VALIDATION_ERROR", errorMessages, "warn");
}
}
/**
* Authentication Error - for missing or invalid authentication
*/
export class AuthenticationError extends APIError {
constructor(message = "Authentication required") {
super(message, 401, "AUTHENTICATION_ERROR", undefined, "info");
}
}
/**
* Authorization Error - for insufficient permissions
*/
export class AuthorizationError extends APIError {
constructor(message = "Insufficient permissions") {
super(message, 403, "AUTHORIZATION_ERROR", undefined, "warn");
}
}
/**
* Not Found Error - for missing resources
*/
export class NotFoundError extends APIError {
constructor(resource = "Resource") {
super(`${resource} not found`, 404, "NOT_FOUND", undefined, "info");
}
}
/**
* Rate Limit Error - for rate limiting violations
*/
export class RateLimitError extends APIError {
constructor(limit: number, windowMs: number) {
super(
"Rate limit exceeded",
429,
"RATE_LIMIT_EXCEEDED",
{ limit, windowMs },
"warn"
);
}
}
/**
* Conflict Error - for resource conflicts
*/
export class ConflictError extends APIError {
constructor(message = "Resource conflict") {
super(message, 409, "CONFLICT", undefined, "warn");
}
}
/**
* Database Error - for database operation failures
*/
export class DatabaseError extends APIError {
constructor(message = "Database operation failed", details?: any) {
super(message, 500, "DATABASE_ERROR", details, "error");
}
}
/**
* External Service Error - for third-party service failures
*/
export class ExternalServiceError extends APIError {
constructor(
service: string,
message = "External service error",
details?: any
) {
super(
`${service} service error: ${message}`,
502,
"EXTERNAL_SERVICE_ERROR",
{ service, ...details },
"error"
);
}
}
/**
* Check if error should be exposed to client
*/
function shouldExposeError(error: unknown): boolean {
if (error instanceof APIError) {
// Only expose client errors (4xx status codes)
return error.statusCode >= 400 && error.statusCode < 500;
}
return false;
}
/**
* Log error with appropriate level
*/
function logError(error: unknown, requestId: string, context?: any): void {
const logData = {
requestId,
error: error instanceof Error ? error.message : String(error),
stack: error instanceof Error ? error.stack : undefined,
context,
};
if (error instanceof APIError) {
switch (error.logLevel) {
case "info":
console.info("[API Info]", logData);
break;
case "warn":
console.warn("[API Warning]", logData);
break;
case "error":
console.error("[API Error]", logData);
break;
}
} else {
// Unknown errors are always logged as errors
console.error("[API Unexpected Error]", logData);
}
}
/**
* Handle API errors consistently across all endpoints
*/
export function handleAPIError(
error: unknown,
requestId?: string,
context?: any
): NextResponse {
const id = requestId || crypto.randomUUID();
// Log the error
logError(error, id, context);
if (error instanceof APIError) {
const response = createErrorResponse(
error.message,
Array.isArray(error.details) ? error.details : undefined,
{ requestId: id }
);
return NextResponse.json(response, {
status: error.statusCode,
headers: {
"X-Request-ID": id,
},
});
}
// Handle Zod validation errors
if (error instanceof ZodError) {
const validationError = new ValidationError(error);
return handleAPIError(validationError, id, context);
}
// Handle unknown errors - don't expose details in production
const isDevelopment = process.env.NODE_ENV === "development";
const message =
shouldExposeError(error) || isDevelopment
? error instanceof Error
? error.message
: String(error)
: "Internal server error";
const response = createErrorResponse(message, undefined, { requestId: id });
return NextResponse.json(response, {
status: 500,
headers: {
"X-Request-ID": id,
},
});
}
/**
* Async error handler for promise chains
*/
export function asyncErrorHandler<T extends any[], R>(
fn: (...args: T) => Promise<R>
) {
return async (...args: T): Promise<R> => {
try {
return await fn(...args);
} catch (error) {
throw error instanceof APIError
? error
: new APIError(error instanceof Error ? error.message : String(error));
}
};
}
/**
* Error boundary for API route handlers
*/
export function withErrorHandling<T extends any[], R>(
handler: (...args: T) => Promise<NextResponse> | NextResponse
) {
return async (...args: T): Promise<NextResponse> => {
try {
return await handler(...args);
} catch (error) {
return handleAPIError(error);
}
};
}

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/**
* Base API Handler with Middleware Pattern
*
* Provides a composable, middleware-based approach to API endpoint creation
* with built-in authentication, authorization, validation, rate limiting,
* and consistent error handling.
*/
import { type NextRequest, NextResponse } from "next/server";
import { getServerSession } from "next-auth";
import type { z } from "zod";
import { authOptions } from "@/lib/auth";
import { prisma } from "@/lib/prisma";
import { rateLimiter } from "@/lib/rateLimiter";
import type { UserSession } from "@/lib/types";
import {
APIError,
AuthenticationError,
AuthorizationError,
handleAPIError,
RateLimitError,
ValidationError,
} from "./errors";
import { createSuccessResponse, extractPaginationParams } from "./response";
/**
* API Context passed to handlers
*/
export interface APIContext {
request: NextRequest;
session: UserSession | null;
user: {
id: string;
email: string;
role: string;
companyId: string;
} | null;
ip: string;
userAgent?: string;
requestId: string;
pagination?: {
page: number;
limit: number;
};
}
/**
* Rate limiting configuration
*/
export interface RateLimitConfig {
maxRequests: number;
windowMs: number;
keyGenerator?: (context: APIContext) => string;
}
/**
* User roles for authorization
*/
export enum UserRole {
USER = "USER",
AUDITOR = "AUDITOR",
ADMIN = "ADMIN",
PLATFORM_ADMIN = "PLATFORM_ADMIN",
}
/**
* API handler configuration options
*/
export interface APIHandlerOptions {
// Authentication & Authorization
requireAuth?: boolean;
requiredRole?: UserRole | UserRole[];
requirePlatformAccess?: boolean;
// Input validation
validateInput?: z.ZodSchema;
validateQuery?: z.ZodSchema;
// Rate limiting
rateLimit?: RateLimitConfig;
// Features
enablePagination?: boolean;
auditLog?: boolean;
// Response configuration
allowCORS?: boolean;
cacheControl?: string;
}
/**
* API handler function type
*/
export type APIHandler<T = any> = (
context: APIContext,
validatedData?: any,
validatedQuery?: any
) => Promise<T>;
/**
* Create API context from request
*/
async function createAPIContext(request: NextRequest): Promise<APIContext> {
const session = (await getServerSession(authOptions)) as UserSession | null;
const ip = getClientIP(request);
const userAgent = request.headers.get("user-agent") || undefined;
const requestId = crypto.randomUUID();
let user: {
id: string;
email: string;
role: string;
companyId: string;
} | null = null;
if (session?.user) {
user = {
id: session.user.id || "",
email: session.user.email || "",
role: session.user.role || "USER",
companyId: session.user.companyId || "",
};
}
const searchParams = new URL(request.url).searchParams;
const pagination = extractPaginationParams(searchParams);
return {
request,
session,
user,
ip,
userAgent,
requestId,
pagination,
};
}
/**
* Extract client IP address
*/
function getClientIP(request: NextRequest): string {
const forwarded = request.headers.get("x-forwarded-for");
const realIP = request.headers.get("x-real-ip");
const cfConnectingIP = request.headers.get("cf-connecting-ip");
if (forwarded) {
return forwarded.split(",")[0].trim();
}
return realIP || cfConnectingIP || "unknown";
}
/**
* Validate authentication
*/
async function validateAuthentication(context: APIContext): Promise<void> {
if (!context.session || !context.user) {
throw new AuthenticationError("Authentication required");
}
}
/**
* Validate authorization
*/
async function validateAuthorization(
context: APIContext,
options: APIHandlerOptions
): Promise<void> {
if (!context.user) {
throw new AuthenticationError("Authentication required");
}
// Check required role
if (options.requiredRole) {
const requiredRoles = Array.isArray(options.requiredRole)
? options.requiredRole
: [options.requiredRole];
if (!requiredRoles.includes(context.user.role as UserRole)) {
throw new AuthorizationError(
`Required role: ${requiredRoles.join(" or ")}`
);
}
}
// Check platform access
if (options.requirePlatformAccess) {
const platformRoles = [UserRole.ADMIN, UserRole.PLATFORM_ADMIN];
if (!platformRoles.includes(context.user.role as UserRole)) {
throw new AuthorizationError("Platform access required");
}
}
}
/**
* Apply rate limiting
*/
async function applyRateLimit(
context: APIContext,
config: RateLimitConfig
): Promise<void> {
const key = config.keyGenerator
? config.keyGenerator(context)
: `api:${context.ip}`;
const result = rateLimiter.checkRateLimit(key);
const isAllowed = result.allowed;
if (!isAllowed) {
throw new RateLimitError(config.maxRequests, config.windowMs);
}
}
/**
* Validate request input
*/
async function validateInput<T>(
request: NextRequest,
schema: z.ZodSchema<T>
): Promise<T> {
try {
const body = await request.json();
return schema.parse(body);
} catch (error) {
if (error instanceof SyntaxError) {
throw new ValidationError(["Invalid JSON in request body"]);
}
throw new ValidationError(error as any);
}
}
/**
* Validate query parameters
*/
function validateQuery<T>(request: NextRequest, schema: z.ZodSchema<T>): T {
try {
const searchParams = new URL(request.url).searchParams;
const query = Object.fromEntries(searchParams.entries());
return schema.parse(query);
} catch (error) {
throw new ValidationError(error as any);
}
}
/**
* Log API access for audit purposes
*/
async function logAPIAccess(
context: APIContext,
outcome: "success" | "error",
endpoint: string,
error?: Error
): Promise<void> {
try {
// Only log if audit logging is enabled for this endpoint
// TODO: Integrate with security audit logger service
// Production logging should use proper logging service instead of console.log
} catch (logError) {
// Don't fail the request if logging fails
// TODO: Send to error tracking service
}
}
/**
* Add CORS headers if enabled
*/
function addCORSHeaders(
response: NextResponse,
options: APIHandlerOptions
): void {
if (options.allowCORS) {
response.headers.set("Access-Control-Allow-Origin", "*");
response.headers.set(
"Access-Control-Allow-Methods",
"GET, POST, PUT, DELETE, OPTIONS"
);
response.headers.set(
"Access-Control-Allow-Headers",
"Content-Type, Authorization"
);
}
}
/**
* Main API handler factory
*/
export function createAPIHandler<T = any>(
handler: APIHandler<T>,
options: APIHandlerOptions = {}
) {
return async (request: NextRequest): Promise<NextResponse> => {
let context: APIContext | undefined;
try {
// 1. Create request context
context = await createAPIContext(request);
// 2. Apply rate limiting
if (options.rateLimit) {
await applyRateLimit(context, options.rateLimit);
}
// 3. Validate authentication
if (options.requireAuth) {
await validateAuthentication(context);
}
// 4. Validate authorization
if (options.requiredRole || options.requirePlatformAccess) {
await validateAuthorization(context, options);
}
// 5. Validate input
let validatedData;
if (options.validateInput && request.method !== "GET") {
validatedData = await validateInput(request, options.validateInput);
}
// 6. Validate query parameters
let validatedQuery;
if (options.validateQuery) {
validatedQuery = validateQuery(request, options.validateQuery);
}
// 7. Execute handler
const result = await handler(context, validatedData, validatedQuery);
// 8. Audit logging
if (options.auditLog) {
await logAPIAccess(context, "success", request.url);
}
// 9. Create response
const response = NextResponse.json(
createSuccessResponse(result, { requestId: context.requestId })
);
// 10. Add headers
response.headers.set("X-Request-ID", context.requestId);
if (options.cacheControl) {
response.headers.set("Cache-Control", options.cacheControl);
}
addCORSHeaders(response, options);
return response;
} catch (error) {
// Handle errors consistently
const requestId = context?.requestId || crypto.randomUUID();
// Log failed requests
if (options.auditLog && context) {
await logAPIAccess(context, "error", request.url, error as Error);
}
return handleAPIError(error, requestId, {
endpoint: request.url,
method: request.method,
ip: context?.ip,
userId: context?.user?.id,
});
}
};
}
/**
* Utility function for GET endpoints
*/
export function createGETHandler<T = any>(
handler: APIHandler<T>,
options: Omit<APIHandlerOptions, "validateInput"> = {}
) {
return createAPIHandler(handler, {
...options,
cacheControl: options.cacheControl || "private, max-age=300", // 5 minutes default
});
}
/**
* Utility function for POST endpoints
*/
export function createPOSTHandler<T = any>(
handler: APIHandler<T>,
options: APIHandlerOptions = {}
) {
return createAPIHandler(handler, {
...options,
auditLog: options.auditLog ?? true, // Enable audit logging by default for POST
});
}
/**
* Utility function for authenticated endpoints
*/
export function createAuthenticatedHandler<T = any>(
handler: APIHandler<T>,
options: APIHandlerOptions = {}
) {
return createAPIHandler(handler, {
...options,
requireAuth: true,
auditLog: true,
});
}
/**
* Utility function for admin endpoints
*/
export function createAdminHandler<T = any>(
handler: APIHandler<T>,
options: APIHandlerOptions = {}
) {
return createAPIHandler(handler, {
...options,
requireAuth: true,
requiredRole: [UserRole.ADMIN, UserRole.PLATFORM_ADMIN],
auditLog: true,
rateLimit: options.rateLimit || {
maxRequests: 100,
windowMs: 15 * 60 * 1000, // 15 minutes
},
});
}

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/**
* API Infrastructure Export Module
*
* Centralized exports for the standardized API layer architecture.
* This module provides a clean interface for importing API utilities
* throughout the application.
*/
// Authorization system
export {
type CompanyAccessResult,
canManageUser,
createPermissionChecker,
getUserPermissions,
hasAllPermissions,
hasAnyPermission,
hasPermission,
isRoleHigherThan,
Permission,
ResourceType,
requireAllPermissions,
requireAnyPermission,
requireCompanyAccess,
requireCompanyAccessFromRequest,
requirePermission,
requireUserManagementPermission,
validateCompanyAccess,
withPermissions,
} from "./authorization";
// Error handling
export {
APIError,
AuthenticationError,
AuthorizationError,
asyncErrorHandler,
ConflictError,
DatabaseError,
ExternalServiceError,
handleAPIError,
NotFoundError,
RateLimitError,
ValidationError,
withErrorHandling,
} from "./errors";
// API handlers and middleware
export {
type APIContext,
type APIHandler,
type APIHandlerOptions,
createAdminHandler,
createAPIHandler,
createAuthenticatedHandler,
createGETHandler,
createPOSTHandler,
type RateLimitConfig,
UserRole,
} from "./handler";
// Re-import types for use in functions below
import type { APIContext, APIHandler, APIHandlerOptions } from "./handler";
import { createAPIHandler } from "./handler";
import { Permission, createPermissionChecker } from "./authorization";
// Response utilities
export {
type APIResponse,
type APIResponseMeta,
calculatePaginationMeta,
createErrorResponse,
createPaginatedResponse,
createSuccessResponse,
extractPaginationParams,
type PaginationMeta,
} from "./response";
/**
* Utility function to create a fully configured API endpoint
* with authentication, authorization, and validation
*/
export function createSecureAPIEndpoint<T = unknown>(
handler: APIHandler<T>,
requiredPermission: Permission,
options: Omit<APIHandlerOptions, "requireAuth" | "requiredRole"> = {}
) {
return createAPIHandler(
async (context, validatedData, validatedQuery) => {
// Check permission
const permissions = createPermissionChecker(context);
permissions.require(requiredPermission);
// Execute handler
return handler(context, validatedData, validatedQuery);
},
{
...options,
requireAuth: true,
auditLog: true,
}
);
}
/**
* Utility function to create a company-scoped API endpoint
*/
export function createCompanyScopedEndpoint<T = unknown>(
handler: (
context: APIContext,
validatedData?: unknown,
validatedQuery?: unknown
) => Promise<T>,
requiredPermission: Permission,
getCompanyId: (context: APIContext) => string | Promise<string>,
options: Omit<APIHandlerOptions, "requireAuth"> = {}
) {
return createAPIHandler(
async (context, validatedData, validatedQuery) => {
// Check permission
const permissions = createPermissionChecker(context);
permissions.require(requiredPermission);
// Validate company access
const companyId = await getCompanyId(context);
permissions.requireCompanyAccess(companyId);
// Execute handler with company context
return handler(context, validatedData, validatedQuery);
},
{
...options,
requireAuth: true,
auditLog: true,
}
);
}

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/**
* Standardized API Response System
*
* Provides consistent response formatting across all API endpoints
* with proper typing, error handling, and metadata support.
*/
export interface PaginationMeta {
page: number;
limit: number;
total: number;
totalPages: number;
}
export interface APIResponseMeta {
timestamp: string;
requestId: string;
pagination?: PaginationMeta;
version?: string;
}
export interface APIResponse<T = any> {
success: boolean;
data?: T;
error?: string;
errors?: string[];
meta: APIResponseMeta;
}
/**
* Create a successful API response
*/
export function createSuccessResponse<T>(
data: T,
meta?: Partial<APIResponseMeta>
): APIResponse<T> {
return {
success: true,
data,
meta: {
timestamp: new Date().toISOString(),
requestId: crypto.randomUUID(),
version: "1.0",
...meta,
},
};
}
/**
* Create an error API response
*/
export function createErrorResponse(
error: string,
errors?: string[],
meta?: Partial<APIResponseMeta>
): APIResponse {
return {
success: false,
error,
errors,
meta: {
timestamp: new Date().toISOString(),
requestId: crypto.randomUUID(),
version: "1.0",
...meta,
},
};
}
/**
* Create a paginated success response
*/
export function createPaginatedResponse<T>(
data: T[],
pagination: PaginationMeta,
meta?: Partial<APIResponseMeta>
): APIResponse<T[]> {
return createSuccessResponse(data, {
...meta,
pagination,
});
}
/**
* Extract pagination parameters from request
*/
export function extractPaginationParams(searchParams: URLSearchParams): {
page: number;
limit: number;
} {
const page = Math.max(
1,
Number.parseInt(searchParams.get("page") || "1", 10)
);
const limit = Math.min(
100,
Math.max(1, Number.parseInt(searchParams.get("limit") || "20", 10))
);
return { page, limit };
}
/**
* Calculate pagination metadata
*/
export function calculatePaginationMeta(
page: number,
limit: number,
total: number
): PaginationMeta {
return {
page,
limit,
total,
totalPages: Math.ceil(total / limit),
};
}