上传出租车电子发票文件

服务商调用插卡接口前，需调用本接口上传出租车电子发票文件来获取文件ID。文件ID有效期为3天，有效期内未成功调用插卡接口需重新调用本接口上传发票文件。

const { createReadStream } = require('fs')
const { basename } = require('path')

const localFilePath = '/path/to/merchant-invoice-file.pdf'
const stream = createReadStream(localFilePath)
const meta = {
  company_mchid,
  region_id,
  digest_algorithm: 'DIGEST_ALGORITHM_SM3',
  digest: 'from upstream or local calculated',
}
const media = {
  meta: JSON.stringify(meta),
  file: stream,
}

wxpay.v3.taxiInvoice.cards.uploadFile.post(media, {
  meta,
  headers: { 'Content-Type': 'multipart/form-data' },
})
.then(
  ({ 
    data: {
      fapiao_media_id,
    },
  }) => ({
    fapiao_media_id,
  })
)

参阅 官方文档