Criar um adaptador

pagamentos-adapter-nome/
├── package.json
├── src/
│   └── index.ts
└── README.md

type WebhookHandler = (request: Request) => Promise<Response>

import type { WebhookHandler } from 'pagamentos'

export function toHono(handler: WebhookHandler) {
  return (c: { req: { raw: Request } }) => {
    return handler(c.req.raw)
  }
}

import { Hono } from 'hono'
import { toHono } from 'pagamentos/hono'
import { pg } from './pagamentos'

const app = new Hono()
app.post('/webhook', toHono(pg.webhooks.handler))
export default app

import type { WebhookHandler } from 'pagamentos'
import type { Request, Response } from 'express'

export function toExpress(handler: WebhookHandler) {
  return async (req: Request, res: Response) => {
    // Constrói um Request padrão a partir do req do Express
    const request = new Request(
      `${req.protocol}://${req.get('host')}${req.originalUrl}`,
      {
        method: req.method,
        headers: Object.entries(req.headers).reduce(
          (acc, [key, value]) => {
            if (value) acc[key] = Array.isArray(value) ? value.join(', ') : value
            return acc
          },
          {} as Record<string, string>
        ),
        body: req.method !== 'GET' ? JSON.stringify(req.body) : undefined
      }
    )

    const response = await handler(request)

    // Traduz a Response de volta para o formato do Express
    res.status(response.status)
    response.headers.forEach((value, key) => res.setHeader(key, value))
    const text = await response.text()
    res.send(text)
  }
}

import express from 'express'
import { toExpress } from 'pagamentos/express'
import { pg } from './pagamentos'

const app = express()
app.post('/webhook', toExpress(pg.webhooks.handler))
app.listen(3000)

{
  "name": "pagamentos-adapter-nome-do-framework",
  "peerDependencies": {
    "pagamentos": "^0.x"
  }
}