hyparam/hyparquet-writer

Apache Parquet file writer in JavaScript

What's novel

Apache Parquet file writer in JavaScript

Code Analysis

5 files read · 2 rounds

A pure JavaScript implementation of the Parquet file format, providing full read/write capabilities for Thrift metadata, RLE/bit-packing encoding, and Dremel nested structures.

Strengths

The project demonstrates deep substance with a robust, modular architecture that correctly implements complex Parquet specifications including Thrift serialization, hybrid compression algorithms, and Dremel level management. The separation of concerns between encoding, decoding, and schema handling is excellent.

Weaknesses

Error handling could be more rigorous, particularly around malformed inputs or edge cases in the bit-packing logic. Test coverage appears limited to basic functionality rather than exhaustive edge case validation.

Score Breakdown

Innovation

5 (25%)

Craft

78 (35%)

Traction

49 (15%)

Scope

80 (25%)

Signal breakdown

Innovation

Not Fork+1

Code Novelty+1

Concept Novelty+2

Craft

Ci+5

Tests+8

Polish+0

Releases+0

Has License+5

Code Quality+23

Readme Quality+15

Recent Activity+7

Structure Quality+5

Commit Consistency+5

Has Dependency Mgmt+5

Traction

Forks+12

Stars+20

Hn Points+12

Watchers+3

Early Traction+0

Devto Reactions+0

Community Contribs+2

Scope

Commits+8

Languages+3

Subsystems+10

Bloat Penalty+0

Completeness+7

Contributors+7

Authored Files+12

Readme Code Match+3

Architecture Depth+5

Implementation Depth+8

Evidence

Commits

143

Contributors

Files

Active weeks

TestsCI/CDREADMELicenseContributing

Repository

Language

JavaScript

Stars

Forks

License

MIT