R Observatory: Metrics for yyjsonr version 0.1.22

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

yyjsonr

0.1.22Package record

Fast 'JSON', 'NDJSON' and 'GeoJSON' Parser and Generator

12packages dependsuggested by 6

197.6Kdownloads / year

51.7%test coverage

13/13flavors OK

Overview

About

Maintained by Mike ChengCRAN page ↗GitHub ↗Website ↗Issues ↗

A fast 'JSON' parser, generator and validator which converts 'JSON', 'NDJSON' (Newline Delimited 'JSON') and 'GeoJSON' (Geographic 'JSON') data to/from R objects. The standard R data types are supported (e.g. logical, numeric, integer) with configurable handling of NULL and NA values. Data frames, atomic vectors and lists are all supported as data containers translated to/from 'JSON'. 'GeoJSON' data is read in as 'simple features' objects. This implementation wraps the 'yyjson' 'C' library which is available from https://github.com/ibireme/yyjson.

Changes in 0.1.22

C-API: Address non-API call Rf_findVarInFrame()
Geojson: Feature level IDs are now parsed correctly.
yyjson: Include latest yyjson version 0.12.0
yyjson: Expose new yyjson_read_flag options for JSON5 parsing
opts: Added parse option for empty_array and empty_object. See opts_read_json()
opts: Add null option when serializing. Now defaults to using JSON "null" where previously had defaulted erroneously to an empty json array. See opts_write_json()
compat: switch from gzfread() to gzread() for centOS compatability.
feature: Add read_geojson_conn() to handle geonjson from an R connection object
opts: Added option arr_of_arrs_to_matrix. Logical value to control if conforming JSON []-arrays of nested []-arrays should be converted to matrices.

Show all changes in 0.1.22Hide the rest of the changes in 0.1.22

Fix: Added support for raw nested data.frames (which are *not* in list-columns)
Fix: ndjson error with zero-length input when parsing to data.frame. Now returns empty data.frame(). This matches the parsing of ndjson to lists, where zero-length input is not an error, and just returns empty lists.
Fix: segfault in parse_ndjson_str_as_df_. Now freeing allocated colnames when error occurs
Fix: free yyjson doc on error in geojson parse
C-API: Removed support for UnboundValues when serializing environments

From NEWS.md in the release

Install

R (CRAN)pak (dev)Ubuntu (r2u)Fedora (COPR)

install.packages("yyjsonr", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("coolbutuseless/yyjsonr")

Development version from coolbutuseless/yyjsonr. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-yyjsonr

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-yyjsonr

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

Health

CRAN checks

13OK

CRAN check page ↗

Slowest check: 2.8 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-04
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-05-11
WARNING12 OK, 1 WARNING2026-05-10
OK14 OK2026-04-09

Show 3 earlier changesHide 3 earlier changes

WARNING9 OK, 4 NOTE, 1 WARNING2026-03-21
NOTE13 OK, 1 NOTE2026-03-17
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.1.22

README· In the repository, left out of the releaseVignettesYes · 3 · dynamicNEWSYes · 100% structured · mentions 0.1.22Citation fileNoWebsiteYes

Help pages: 25
Examples that run: 100%24 run in a plain check (2 of them under a condition)
Exported functions with examples: 96%
Documented parameters: 100%
Return-value docs: 92%
Help pages citing references: 0%

Vignettes (3)

How these are measured

Downloads

197.6K

CRAN downloads in the past year

Rank #708 · ~542/day · ~16.5K/mo

Releases R versions

Daily download trend is not available in this view yet.

30.3K30 days

74K90 days

197.6K1 year

Compare downloads with other packages →

Also on4K r2u3.5K conda_forge

How downloads are counted

Repository

coolbutuseless/yyjsonr ↗Account: coolbutuseless

167Stars

16Forks

3Open issues

2Open PRs

0Releases

133Commits

4Commit identities

133 commits · Last activity 2026-04-05 · 0% stars, 30d

Responsiveness

How these are sampled

PRs merged (all time): 38%
Median days to close, 50 most recently updated closed issues: 214
Median days to close, 50 most recently updated closed PRs: 119

Stars over time

2025-09-18 · 1602026-07-07 · 167

How these are measured

PracticesBeta

4 development-tooling and community-health practices detected across 3 families in the upstream repository

Checks run against github.com/coolbutuseless/yyjsonr on 2026-10-11.

Continuous integration (2)

GitHub ActionsR CMD check workflow

The R CMD check workflow runs on Linux, macOS and Windows, and on R-devel

Docs source (1)

README.Rmd

Reproducibility and dev environment (1)

Dev Container

How this is detected·Detection ruleset v3 (2026-09-26)

Dependencies

Declared dependencies

5 external dependencies (excludes base and recommended)

Installing yyjsonr adds no packages beyond those that come with R.

Depends (1)

R >= 4.1.0

Imports (0)

none

LinkingTo (0)

none

Suggests (5)

bit64 knitr rmarkdown jsonlite testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

12direct

40indirect

Imports 12

Suggested by 6

Show all 18 packagesHide all 18 packages

Depends, Imports or LinkingTo, most downloaded first

leafgl nasapower gdalraster arcgisutils arcgislayers OmicFlow ambiorix calcite CDCPLACES tera arcgisrouting rlowdb

Suggests, most downloaded first

leaflet.extras2 qol ursa routing cookie mochita

How these are counted

Code & Tests

People & History

People (3)

Mike Cheng

Yao Yuan

Author, Copyright holder

Author of bundled yyjson

Murat Tasan

Contributor · added in 0.1.21

'json_verbatim' handling

Releases (5)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
0.1.22Latest
record
2026-04-05 · current release · diff ↗ ·
added 1 export
read_geojson_conn
0.1.21
record
2025-06-03 · diff ↗ ·
added 4 exports
as_scalar, read_ndjson_raw, write_json_raw, write_ndjson_raw
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
0.1.20
record
2024-04-10 · diff ↗ ·
added 11 exports
opts_read_geojson, opts_write_geojson, read_geojson_file, read_geojson_str, read_ndjson_file, read_ndjson_str, write_geojson_file, write_geojson_str, write_ndjson_file, write_ndjson_str, yyjson_version
0.1.18
record
2024-01-22 · diff ↗
0.1.16
record
2024-01-17
R
R 4.3.0 released · 2023-04-21

Package metadata

First published: 2024-01-17
Total releases: 5 / 2 yrs
License: MIT + file LICENSE OSI
Copyright: The included 'yyjson' code is Copyright (c) 2020 YaoYuan. See 'COPYRIGHTS' for LICENSE for included code.
Minimum R: ≥ 4.1.0
Download size: 1.3 MB

Appears in task views

Analysis of Spatial Data

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("yyjsonr")

Format

Cheng, M., Tasan, M., & Yuan, Y. (2026). yyjsonr: Fast 'JSON', 'NDJSON' and 'GeoJSON' Parser and Generator (Version 0.1.22) [Computer software]. https://doi.org/10.32614/CRAN.package.yyjsonr

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for yyjsonr version 0.1.22 [Data set]. HJJB, LLC. Data release v2026-10-17. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-17, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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