https://github.com/knadh/csv2json

csv2json is a fast utility that converts CSV files into JSON line files. An experiment in Zig lang.
https://github.com/knadh/csv2json

cli csv csv-exporter csv-json csv-json-converter csv-parser csv-reader

Last synced: about 2 months ago
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csv2json is a fast utility that converts CSV files into JSON line files. An experiment in Zig lang.

• Host: GitHub
• URL: https://github.com/knadh/csv2json
• Owner: knadh
• License: mit
• Created: 2021-10-23T14:12:48.000Z (about 3 years ago)
• Default Branch: master
• Last Pushed: 2024-03-22T08:13:19.000Z (9 months ago)
• Last Synced: 2024-04-17T02:49:03.493Z (8 months ago)
• Topics: cli, csv, csv-exporter, csv-json, csv-json-converter, csv-parser, csv-reader
• Language: Zig
• Homepage:
• Size: 13.7 KB
• Stars: 37
• Watchers: 2
• Forks: 7
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
## csv2json

csv2json is a fast utility that converts CSV files into JSON line files.

*This is my first "hello, world" [Zig](https://ziglang.org) learning exercise. The program may be buggy and/or faulty. Use with caution.*

### Usage

```shell

# Intel(R) Core(TM) i7-10510U CPU @ 1.80GHz.

#

# 92 MB CSV file with 1 million rows. Sample:

# instrument_token,exchange_token,tradingsymbol,isin,name,last_price,expiry,strike,tick_size,lot_size,instrument_type,segment,exchange

# 272376070,1063969,"EURINR21DECFUT","","EURINR",0,"2021-12-29",0,0.0025,1,"FUT","BCD-FUT","BCD"

# ...

$ ./csv2json -i /tmp/1mil.csv > /tmp/1mil.json

Reading /tmp/1mil.csv ...

Processed 1000000 lines in 884.61 milliseconds (1000000.00 lines / second)

$ head -n /tmp/1mil.json

{"instrument_token": 272376070, "exchange_token": 1063969, "tradingsymbol": "EURINR21DECFUT", "isin": null, "name": "EURINR", "last_price": 0, "expiry": "2021-12-29", "strike": 0, "tick_size": "0.0025", "lot_size": 1, "instrument_type": "FUT", "segment": "BCD-FUT", "exchange": "BCD"}

{"instrument_token": 272086278, "exchange_token": 1062837, "tradingsymbol": "EURINR21NOVFUT", "isin": null, "name": "EURINR", "last_price": 0, "expiry": "2021-11-26", "strike": 0, "tick_size": "0.0025", "lot_size": 1, "instrument_type": "FUT", "segment": "BCD-FUT", "exchange": "BCD"}

```

### Download

Download the latest release from the [releases](https://github.com/knadh/csv2json/releases) page.

Or, to compile with Zig (tested with v0.11.0):

- `git clone --recursive [email protected]:knadh/csv2json.git`

- `cd csv2json && zig build`

- The binary will be in `zig-out/bin`

Licensed under the MIT license.