mholt/PapaParse

Streaming to unparse or csv file.

Open

#568 opened on Sep 19, 2018

View on GitHub
 (1 comment) (5 reactions) (0 assignees)JavaScript (11,877 stars) (1,157 forks)batch import
enhancementhelp wanted

Description

Hi there, I have a stream JSON of data which I would like to unparse and stream to a csv file. I see in the documentation we are able to parse from a stream but is the other way supported?

Thanks!

Contributor guide

Tech stack
javascript
Domain
databackend
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
unclear
Prerequisites
Familiarity with Node.js streamsUnderstanding of PapaParse API
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
25
Research direction
Investigate the existing streaming parser implementation in PapaParse (likely in src/PapaParse.js or similar). Check if there are any linked discussions or prior attempts. The feature would require implementing a writable stream that converts JSON to CSV, similar to the existing readable stream for parsing. Look at the library's API for unparse to understand the serialization logic.
Streaming to unparse or csv file. · mholt/PapaParse#568 | Good First Issue