https://github.com/eduidl/mcap2arrow-rs

https://github.com/eduidl/mcap2arrow-rs

apache-arrow mcap rust

Last synced: 4 months ago
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• Host: GitHub
• URL: https://github.com/eduidl/mcap2arrow-rs
• Owner: eduidl
• License: apache-2.0
• Created: 2026-02-14T06:20:03.000Z (4 months ago)
• Default Branch: main
• Last Pushed: 2026-02-24T15:25:42.000Z (4 months ago)
• Last Synced: 2026-02-24T18:34:14.187Z (4 months ago)
• Topics: apache-arrow, mcap, rust
• Language: Rust
• Homepage:
• Size: 174 KB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.md

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README

          
# mcap2arrow-rs

[![CI](https://github.com/eduidl/mcap2arrow-rs/actions/workflows/ci.yml/badge.svg)](https://github.com/eduidl/mcap2arrow-rs/actions/workflows/ci.yml)

[![crates.io](https://img.shields.io/crates/v/mcap2arrow.svg)](https://crates.io/crates/mcap2arrow)

Rust workspace for converting MCAP data into Apache Arrow representations.

## Crates

- [`mcap2arrow`](mcap2arrow/mcap2arrow): library entry point for decoding MCAP into Arrow `RecordBatch`

- [`transmcap`](tools/transmcap): CLI for converting MCAP to `jsonl/csv/parquet`

- `mcap2arrow-*`: internal/support crates used by `mcap2arrow`

## Start Here

- CLI usage and options: [`tools/transmcap/README.md`](tools/transmcap/README.md)

- Library usage and feature flags: [`mcap2arrow/mcap2arrow/README.md`](mcap2arrow/mcap2arrow/README.md)

## Quick CLI Usage (`transmcap`)

```bash

cargo run -p transmcap -- convert  --topic  --format jsonl

cargo run -p transmcap -- schema  --topic 

```

Use `-o/--output` to write files (`parquet` requires `-o`).

## Quick Commands

```bash

cargo build -p transmcap

cargo test --workspace

```