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https://issues.apache.org/jira/browse/ARROW-2786?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17501161#comment-17501161
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Kyle Barron commented on ARROW-2786:
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I have a [working prototype here|https://github.com/kylebarron/parquet-wasm] of
the Rust `parquet` and `arrow` crates compiled to WASM. As [described on the
Rust
repo|https://github.com/apache/arrow-rs/issues/180#issuecomment-1058827130],
I've gotten Snappy, Gzip, Brotli, and ZSTD codecs working in WASM, and it looks
like LZ4 should be attainable by switching out the dependency.
My idea is that the bindings can be pretty small by just parsing the Parquet
input and creating Arrow IPC data to send back to the JS side. Then the Arrow
JS bindings would parse the IPC data and Arrow JS could be used from then on.
Unfortunately, there seem to be issues currently with Arrow JS' IPC
implementation (the reason why I was looking through these issues 😄), so Arrow
JS often can't read the IPC data returned from Rust (though Pyarrow can read
the files, so they seem correctly-formatted).
> [JS] Read Parquet files in JavaScript
> -------------------------------------
>
> Key: ARROW-2786
> URL: https://issues.apache.org/jira/browse/ARROW-2786
> Project: Apache Arrow
> Issue Type: New Feature
> Components: JavaScript
> Reporter: Wes McKinney
> Priority: Major
> Labels: parquet
>
> See question in https://github.com/apache/arrow/issues/2209
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