fastgeojson

0.1.3

High-Performance 'GeoJSON' and 'JSON' Serialization

0packages depend

1.5Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Alex JorionFirst published 2026-01-192 releasesCRAN page ↗GitHub ↗

Converts R data frames and 'sf' spatial objects into 'JSON' and 'GeoJSON' strings. The core encoders are implemented in 'Rust' using the 'extendr' framework and are designed to efficiently serialize large tabular and spatial datasets. Returns serialized 'JSON' text, allowing applications such as 'shiny' or web APIs to transfer data to client-side 'JavaScript' libraries without additional encoding overhead.

Install

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

install.packages("fastgeojson", 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("firstzeroenergy/fastgeojson")

Development version from firstzeroenergy/fastgeojson. 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-fastgeojson

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

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-fastgeojson

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

Slowest check: 2.2 min · r-devel-linux-x86_64-fedora-clang

Code health

Yes

Tests · ratio 0.43

not tracked

Coverage

100%

Documentation · exports

Dependencies · direct

Check history

OK2026-05-02
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-04-25
11 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-04-16
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-03-28
13 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 693 wordsVignettesNopkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 100%
References docs: 0%

Downloads

1.5K

CRAN downloads in the past year

Rank #21,805 · ~4/day · ~121/mo

Releases R versions

Daily download trend is not available in this view yet.

19130 days

55390 days

1.5K1 year

Compare downloads with other packages →

Also on215 r2u

Repository

GitHub ↗ firstzeroenergy/fastgeojson

3Stars

0Forks

0Open issues

0Open PRs

0Releases

44Commits

1Contributors

44 commits · Last activity 2026-01-23 · 0% stars, 30d

Stars over time

2026-01-04 · 12026-07-07 · 3

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/firstzeroenergy/fastgeojson on 2026-07-19.

Continuous integration (1)

GitHub Actions

Docs source (1)

README.Rmd

Lint, format, editor (1)

RStudio project

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

4 external dependencies (excludes base and recommended)

Depends (0)

none

Imports (0)

none

LinkingTo (0)

none

Suggests (4)

testthat jsonlite sf leaflet

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

Code Composition

R 167 (67%)Rd 75 (30%)C 8 (3%)

Code characteristics

Cyclomatic complexity: 4.0 median / 8 max
Test cases: 3 / 0.43 per code line
System requirements: 2 external

Test coverage

Line coverage

–

Expression

–

Tests / Examples

–

Functions

46 2 exported

Complexity

4.3 avg / 8 max

Call network

46 nodes / 101 edges

Call graph

Open call graph →

Loading call graph…

Lowest coverage

Per-function coverage is not measured for this package yet.

People & History

People (2)

Maintainer (1)

Alex Jorion

Author, Maintainer

Authors (1)

Alex Jorion

Author, Maintainer

Contributors (1)

The authors of the dependency Rust crates

Contributor

Package Timeline

2 releases. Pick two to compare their code metrics. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
0.1.3Latest
2026-01-23 · current release · diff ↗
0.1.2
2026-01-19
R
R 4.5.0 released · 2025-04-11

Package metadata

First published: 2026-01-19
Total releases: 2 / 1 yrs
License: MIT + file LICENSE OSI
Download size: 1.3 MB
Installed size: not tracked yet
With dependencies: not tracked yet

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