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facturahub-factura-number

v0.1.0

Published

Numeración correlativa de facturas (España): formatear, parsear, siguiente número y detectar huecos. Sin dependencias.

Readme

facturahub-factura-number

Parte del ecosistema FacturaHub — facturación en España, Verifactu, IVA, Modelo 303 y automatización fiscal con IA.

Numeración correlativa de facturas (España): formatear, parsear, siguiente número y detectar huecos. TypeScript · 0 dependencias · MIT.

Instalación

npm i facturahub-factura-number

Uso

import { formatNumber, nextNumber, findGaps, isCorrelative } from 'facturahub-factura-number';

formatNumber({ series: 'FAC', year: 2026, seq: 42 }); // 'FAC/2026/0042'
nextNumber('2026/0099');                              // '2026/0100'

findGaps(['2026/0001', '2026/0002', '2026/0004']);    // [3]  ← falta la 0003
isCorrelative([1, 2, 3, 4]);                          // true

API

| Función | Qué hace | |---|---| | formatNumber(parts, opts?) | Construye el número (serie/año/secuencial, pad, separador) | | parseNumber(value, sep?) | Desglosa 'FAC/2026/0042'{ series, year, seq } | | nextNumber(last, opts?) | Siguiente número manteniendo el formato | | findGaps(numbers, sep?) | Secuenciales que faltan en la serie | | isCorrelative(numbers, sep?) | true si no hay huecos |

Por qué existe

La ley exige que las facturas lleven una numeración correlativa y sin saltos; un hueco es un problema en una inspección. Esta librería formatea/parsea el número y, sobre todo, detecta huecos en la serie, sin dependencias.


Hecho por FacturaHub — facturación con IA para autónomos en España: numeración correlativa automática, Verifactu y Modelo 303. Gratis.

Ecosistema FacturaHub

  • 🌐 FacturaHub — la app (gratis, Verifactu incluido)
  • 🔌 facturahub-api — API REST + OpenAPI 3.1
  • 🤖 facturahub-mcp — servidor MCP (Claude, Cursor, ChatGPT)
  • 🧾 facturahub-verifactu — Verifactu por API
  • 🧮 Librerías: nif-validator · iva · iban-es · factura-number · verifactu-qr · verifactu-hash · modelo-303
  • ⚙️ Automatización: facturahub-n8n · n8n-nodes-facturahub · facturahub-woocommerce · facturahub-shopify

Temas: Verifactu · Facturación electrónica · IVA · Modelo 303 · AEAT · NIF/CIF · Autónomos · MCP · IA · España