读取python中的二进制数据，通过restful api发送，并将文件保存在nodejs中

with open('file.bin', 'rb') as file:
    binary_data = file.read()

import requests

url = 'http://your-nodejs-api-endpoint'
headers = {'Content-Type': 'application/octet-stream'}
response = requests.post(url, data=binary_data, headers=headers)

const express = require('express');
const bodyParser = require('body-parser');
const fs = require('fs');

const app = express();
app.use(bodyParser.raw({ type: 'application/octet-stream' }));

app.post('/save', (req, res) => {
  const binaryData = req.body;
  fs.writeFile('saved_file.bin', binaryData, (err) => {
    if (err) {
      console.error(err);
      res.status(500).send('Error saving file');
    } else {
      res.send('File saved successfully');
    }
  });
});

app.listen(3000, () => {
  console.log('Node.js server listening on port 3000');
});