# `zappier/admin`

**Package:** `zappier`  
**Source:** `packages/zappier/src/admin.ts`  
**Lines:** 591

## What this module is

Implementation module in `zappier`. The tables below are extracted from the source (signatures + JSDoc).

## Exports

`adminLoginRouter`, `adminAuth`, `AccountingDeps`, `renderInvoiceHtml`, `adminRouter`

## Types / interfaces / classes

| Kind | Name |
|------|------|
| interface | `AccountingDeps` |

## Functions

| Name | Parameters | Param types (JSDoc) | Returns | Calls (same file / helpers) |
|------|------------|---------------------|---------|-----------------------------|
| `adminLoginRouter` | `users: AdminUserRepo` | — | `unknown` | see Call graph |
| `adminAuth` | `(none)` | — | `unknown` | see Call graph |
| `isValidRule` | `rule: unknown` | — | `unknown` | see Call graph |
| `isValidTier` | `tier: unknown` | — | `unknown` | see Call graph |
| `periodWindow` | `period: string` | — | `unknown` | see Call graph |
| `parseDate` | `value: unknown` | — | `unknown` | see Call graph |
| `escapeHtml` | `s: string` | — | `unknown` | see Call graph |
| `renderInvoiceHtml` | `invoice: Invoice, customerName: string` | — | `unknown` | see Call graph |
| `adminRouter` | `store: PricingStore,
  customers: CustomerRepo,
  accounting: AccountingDeps,
  credits: CreditLedger = new CreditLedger(` | — | `unknown` | see Call graph |

## Methods (class / object)

| Name | Parameters |
|------|------------|
| `return` | `req, res, next` |
| `return` | `typeof t.name === 'string' &&
    typeof t.multiplier === 'number' &&
    typeof t.monthlyCreditCents === 'number' &&
    (t.defaultRule === undefined || isValidRule(t.defaultRule` |

## What it imports / requires

- `crypto`
- `fs`
- `path`
- `express`
- `./accounts`
- `./admin-users`
- `./auth`
- `./invoicing`
- `./pricing`
- `./paths`
- `./reports`
- `./usage`
- `./credits`
- `./accounting-export`
- `./statement`
- `./billing-nats`

## Call graph (identifiers invoked)

`tokens`, `adminLoginRouter`, `post`, `status`, `json`, `findByUsername`, `verifyPassword`, `randomBytes`, `toString`, `set`, `now`, `adminAuth`, `header`, `next`, `startsWith`, `slice`, `has`, `isValidRule`, `every`, `isValidTier`, `periodWindow`, `split`, `map`, `parseDate`, `trim`, `isNaN`, `getTime`, `escapeHtml`, `replace`, `toFixed`, `renderInvoiceHtml`, `dollars`, `join`, `toISOString`, `toUpperCase`, `adminRouter`, `get`, `getRateCard`, `getTiers`, `put`, `upsertEndpoint`, `delete`, `deleteEndpoint`, `upsertTier`, `deleteTier`, `list`, `randomUUID`, `save`, `find`, `isFinite`, `trunc`, `add`, `natsPublish`, `natsAdjust`, `async`, `natsStatement`, `composeStatement`, `listFor`, `type`, `send`

Each identifier is a call site in this file. Follow the import list to see the defining module; open that module’s MD for parameter and return types.

## Return values (how to read this)

- HTTP route handlers return Express `res.json(...)` bodies (see route docs).
- Zapier `perform` functions return a **single object** (creates) or an **array** (triggers/searches).
- Pricing functions return integer **cents** on `Quote.totalCents`.