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comprs

From @mongodb-js/zstd

@mongodb-js/zstd is a native zstd addon with two async functions. comprs also links the zstd C library, and adds synchronous calls, streams, dictionaries, multithreaded compression and a browser build.

import { compress, decompress } from '@mongodb-js/zstd';
const compressed = await compress(buffer, 9);
const restored = await decompress(compressed);
import { compress, decompress } from '@derodero24/comprs/next';
const compressed = await compress(buffer, { format: 'zstd', level: 9 });
const restored = await decompress(compressed, { format: 'zstd' });
  • Results. The unified API returns a Uint8Array; wrap it with Buffer.from(result.buffer, result.byteOffset, result.byteLength) where a Buffer is required, or call zstdCompressAsync(buffer, level) and zstdDecompressAsync(data) of the package root, which return a Buffer.
  • Limits. comprs stops decompressing at 256 MiB by default; pass maxOutputSize for more.
  • More. compressSync() and decompressSync() run on the calling thread, workers compresses large inputs on several threads, a Dictionary speeds up small messages, and CompressionStream('zstd') streams (see Unified API).