[英]How to pipe to a Node.js stream that's a buffer, not a file?
I've been searching everywhere, and all examples lead to fs.createWriteStream
which is not what I want. 我到处都在搜索,所有示例都导致了fs.createWriteStream
,这不是我想要的。
I'm using the archiver
package, and would like to use archive.pipe()
to pipe to a writeable stream that is not a file, but rather a buffer that I can use to send to s3.putObject
to write to an S3 bucket. 我使用的是archiver
包,并且想使用archive.pipe()
传递到不是文件的可写流,而是一个可用于发送到s3.putObject
以写入S3存储桶。 How do I set up a buffer that I can pipe to? 如何设置可以通过管道传输的缓冲区?
When I run the code below, I get "Error: not implemented". 当我运行下面的代码时,出现“错误:未实现”。
const stream = require('stream');
const archiver = require('archiver');
const archive = archiver('zip');
const outputStream = new stream.Writable();
outputStream.on('close', () => {
console.log('done');
});
outputStream.on('error', err => {
console.error(err);
});
archive.pipe(outputStream);
archive.append('Testing 1 2 3', { name: 'file1.txt' });
archive.finalize();
Got it! 得到它了!
const bl = require('bl');
const AWS = require('aws-sdk');
const archiver = require('archiver');
const s3 = new AWS.S3();
const archive = archiver('zip');
let buf;
archive.pipe(
bl((err, data) => {
buf = data;
})
);
archive.file('whoa.wav', { name: 'file1.wav' });
archive.finalize().then(x => {
console.log('finalized', buf);
s3.putObject(
{
Bucket: 'xyz',
Key: 'whatever.zip',
Body: buf,
},
err => {
console.log('s3 result:', err);
}
);
});
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