Function writeParquet

Write Arrow data to a Parquet file.

For example, to create a Parquet file with Snappy compression:

import { tableToIPC } from "apache-arrow";
// Edit the `parquet-wasm` import as necessary
import initWasm, {
  Table,
  WriterPropertiesBuilder,
  Compression,
  writeParquet,
} from "parquet-wasm";

// Instantiate the WebAssembly context
await initWasm();

// Given an existing arrow JS table under `table`
const wasmTable = Table.fromIPCStream(tableToIPC(table, "stream"));
const writerProperties = new WriterPropertiesBuilder()
  .setCompression(Compression.SNAPPY)
  .build();
const parquetUint8Array = writeParquet(wasmTable, writerProperties);
Copy

If writerProperties is not provided or is null, the default writer properties will be used. This is equivalent to new WriterPropertiesBuilder().build().