输送大流量时范围错误

Question

我试图通过管道将大型数组作为csv响应发送给rest api。

我使用以下代码

var Stream = require('stream')
var readable = new Stream.Readable();
for (var i=0; i<arr.length; i++){
    readable.push(arr[i]);
}
readable.push(null);

readable.pipe(response);

我收到以下错误

RangeError: Invalid string length
fs.js:158
    at Array.toString (native)
    at nullCheck (fs.js:158:11)
    at Object.fs.open (fs.js:631:8)
     at ReadStream.open (fs.js:1982:6)
    at new ReadStream (fs.js:1969:10)
    at Object.fs.createReadStream (fs.js:1923:10)

任何帮助将不胜感激。谢谢