Created
July 3, 2022 21:49
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zstd streams, buffers, promises
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| const { Readable } = require("stream"); | |
| const { ZSTDCompress, ZSTDDecompress } = require("simple-zstd"); | |
| const compress = (data) => { | |
| return new Promise((resolve) => { | |
| const stream = Readable.from(data); | |
| const compressedStream = stream.pipe(ZSTDCompress(3)); | |
| const bufs = []; | |
| compressedStream.on("data", function (d) { | |
| bufs.push(d); | |
| }); | |
| compressedStream.on("end", function () { | |
| resolve(Buffer.concat(bufs)); | |
| }); | |
| }); | |
| }; | |
| const decompress = (data) => { | |
| return new Promise((resolve) => { | |
| const stream = Readable.from(data); | |
| const compressedStream = stream.pipe(ZSTDDecompress()); | |
| const bufs = []; | |
| compressedStream.on("data", function (d) { | |
| bufs.push(d); | |
| }); | |
| compressedStream.on("end", function () { | |
| resolve(Buffer.concat(bufs)); | |
| }); | |
| }); | |
| }; | |
| module.exports = { compress, decompress }; |
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