节点。js将http响应写入流

i'm fetching some binary data over http. My code looks like:

我通过http获取一些二进制数据。我的代码看起来像:

var writeStream = fs.createWriteStream(fileName);
request(url, function(err, res) {
    res.socket.pipe(writeStream);
});

now the output file is created but the filesize is 0. The url is correct though, i verified that with wget.

现在已经创建了输出文件，但是filesize是0。url是正确的，我用wget验证了这一点。

Thanks in advance & best regards

谨此致谢。

3 个解决方案

#1

The callback for http.request only supplies one argument, which is a reference to the response of the request. Try

http的回调。请求只提供一个参数，它是对请求响应的引用。试一试

http.request(url, function(res) {
    res.pipe(writeStream);
});

Also note that the ClientResponse implements ReadableStream, so you should use .pipe rather than .socket.pipe.

还要注意，ClientResponse实现了ReadableStream，所以您应该使用.pipe而不是. socket.com pipe。

#2

I'm assuming that here request is from mikeal's request library rather than being an instance of http.request. In that case you can simply do request(url).pipe(writeStream);

我假设这里的请求来自mikeal的请求库，而不是http.request的实例。在这种情况下，只需执行request(url).pipe(writeStream);

Remember that for debugging purposes, you can always pipe to process.stdout.

请记住，为了调试目的，您始终可以将管道传输到process.stdout。

#3

var writeStream = fs.createReadStream(fileName);
request(url, function(err, res) {
  writeStream.pipe(res);
  writeStream.on('end', function() {
    //res.end({"status":"Completed"});
  });
});

#1