plugin.js

'use strict'

const fp = require('fastify-plugin')
const fs = require('fs')
const path = require('path')

function fastifyStripe (fastify, options, next) {
  const { apiKey, name, ...stripeOptions } = options

  if (!apiKey) {
    return next(new Error('You must provide a Stripe API key'))
  }

  const config = Object.assign(
    {
      appInfo: {
        name: 'fastify-stripe',
        url: 'https://github.com/coopflow/fastify-stripe',
        version: JSON.parse(fs.readFileSync(path.join(__dirname, 'package.json'))).version
      }
    },
    stripeOptions
  )

  const stripe = require('stripe')(apiKey, config)

  if (name) {
    if (stripe[name]) {
      return next(new Error(`fastify-stripe '${name}' is a reserved keyword`))
    } else if (!fastify.stripe) {
      fastify.decorate('stripe', Object.create(null))
    } else if (Object.prototype.hasOwnProperty.call(fastify.stripe, name)) {
      return next(new Error(`Stripe '${name}' instance name has already been registered`))
    }

    fastify.stripe[name] = stripe
  } else {
    if (fastify.stripe) {
      return next(new Error('fastify-stripe has already been registered'))
    } else {
      fastify.decorate('stripe', stripe)
    }
  }

  next()
}

module.exports = fp(fastifyStripe, {
  fastify: '>=2.11.0',
  name: 'fastify-stripe'
})