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Multi-Tenancy Configuration

Configuration utilities and presets for @stackra/multitenancy package.

Structure

config/
├── index.ts              # Main exports
├── utils.ts              # defineConfig helper
├── presets/
│   ├── default.preset.ts # Default configuration
│   ├── header.preset.ts  # Header-based configuration
│   ├── subdomain.preset.ts # Subdomain-based configuration
│   └── domain.preset.ts  # Domain-based configuration
└── README.md

Usage

Basic Usage

import { defineConfig, subdomainPreset } from '@stackra/multitenancy/config';

const config = defineConfig({
  ...subdomainPreset,
  baseDomain: 'myapp.com',
  fetchTenants: async () => {
    const response = await fetch('/api/tenants');
    return await response.json();
  },
});

Without Preset

import { defineConfig, TenantMode } from '@stackra/multitenancy/config';

const config = defineConfig({
  mode: TenantMode.HEADER,
  resolvers: ['subdomain', 'router'],
  baseDomain: 'myapp.com',
  headerName: 'X-Tenant-ID',
  fetchTenants: async () => {
    const response = await fetch('/api/tenants');
    return await response.json();
  },
});

Available Presets

defaultPreset

Simple filter-based with router resolver:

{
  mode: TenantMode.FILTER,
  tenantField: "tenant_id",
  headerName: "X-Tenant-ID",
  queryParam: "tenant_id",
  resolvers: ["router"]
}

headerPreset

Header-based tenant identification:

{
  mode: TenantMode.HEADER,
  tenantField: "tenant_id",
  headerName: "X-Tenant-ID",
  queryParam: "tenant_id",
  resolvers: ["header", "router"]
}

subdomainPreset

Subdomain-based SaaS:

{
  mode: TenantMode.HEADER,
  headerName: "X-Tenant-ID",
  resolvers: ["subdomain", "router"],
  baseDomain: "example.com"
}

domainPreset

Custom domains with dynamic resolution:

{
  mode: TenantMode.HEADER,
  headerName: "X-Tenant-ID",
  resolvers: ["dynamic-domain", "subdomain", "router"],
  baseDomain: "example.com",
  dynamicDomainApiUrl: "/api/tenants/resolve"
}

Configuration Options

Core Options

• mode: How to pass tenant ID to backend (FILTER, HEADER, URL, QUERY)
• resolvers: Array of resolver names in priority order
• fetchTenants: Function to fetch tenants from your API (required)

Resolver Configuration

• baseDomain: Base domain for subdomain matching
• pathBasedTenants: Enable path-based tenant resolution
• dynamicDomainApiUrl: API endpoint for dynamic domain resolution
• dynamicDomainCacheTTL: Cache TTL for dynamic domain resolver (ms)

Defaults

• fallback: Fallback tenant ID
• tenantField: Field name for tenant in filters (default: "tenant_id")
• headerName: Header name for HEADER mode (default: "X-Tenant-ID")
• queryParam: Query parameter name for QUERY mode (default: "tenant_id")
• defaultTenant: Default tenant object

Feature Flags

• logging: Enable debug logging
• throwOnMissingTenant: Throw error when tenant resolution fails
• disableAutoInjection: Disable automatic tenant context injection

Dynamic Tenant Resolution

All tenant data comes from your API dynamically. There are no static mappings.

Fetching Tenants

fetchTenants: async () => {
  const response = await fetch('/api/tenants');
  return await response.json();
};

Dynamic Domain Resolution

{
  resolvers: ["dynamic-domain"],
  dynamicDomainApiUrl: "/api/tenants/resolve",
  dynamicDomainCacheTTL: 600000 // 10 minutes
}

TypeScript Support

Full TypeScript support with comprehensive type definitions:

import type { MultiTenancyOptions } from '@stackra/multitenancy/config';

const config: Partial<MultiTenancyOptions> = {
  mode: TenantMode.HEADER,
  resolvers: ['subdomain', 'router'],
  baseDomain: 'myapp.com',
  fetchTenants: async () => {
    const response = await fetch('/api/tenants');
    return await response.json();
  },
};