gzip

async function zipBuffer(payload) {   return new Promise((res, rej) => {     gzip(payload, (err, buffer) => {       if (err) {         rej(err);       }       res(buffer);     });   }); } 

使用archiver没这个问题，就是没办法直接压缩到 buffer，需要先生成压缩文件再读取，感觉绕了一个圈子

function zipBuffer(buffer, outputName) {   return new Promise((res, rej) => {     const outputPath = `./temp_data/_${getToken()}.zip`;     const output = fs.createWriteStream(outputPath);     const archive = archiver('zip', {       zlib: { level: 9 },     });     archive.pipe(output);     archive.append(buffer, { name: outputName });     archive.finalize();     output.on('close', async function () {       const zipBuffer = await streamToBuffer(fs.createReadStream(outputPath));       await unlinkFile(outputPath);       res(zipBuffer);     });     output.on('error', async function (err) {       rej(err);     });   }); }