grafeoR

grafeoR provides R bindings for the embedded Grafeo graph database, implemented in Rust with extendr and rextendr.

Documentation site: https://hadimaster65555.github.io/grafeoR/

Current package scope:

• embedded Grafeo database handles
• in-memory and persistent databases
• GQL execution and query results as base data.frames
• ACID-style transaction handles
• bundled real-world OpenFlights sample data
• a visualization example built with ggplot2

The package is currently focused on the embedded LPG/GQL workflow. It does not yet expose Grafeo server features, RDF/SPARQL support, or higher-level graph analysis helpers.

Status

The current development snapshot has been validated locally with:

• R CMD INSTALL . -l /tmp/grafeoR-lib
• R_LIBS=/tmp/grafeoR-lib Rscript inst/examples/openflights-example.R
• R CMD build .
• R CMD check --no-manual grafeoR_0.0.0.9000.tar.gz

Latest local package check result: Status: OK.

Requirements

• R >= 4.2
• Rust stable >= 1.91.1
• Cargo

ggplot2 is only needed for the visualization example and vignette, not for the core database API.

Install

Install remotes if needed, then install directly from GitHub:

install.packages("remotes")
remotes::install_github("hadimaster65555/grafeoR")

Or install into a custom library:

install.packages("remotes")
remotes::install_github("hadimaster65555/grafeoR", lib = "/path/to/R/library")

Quick Start

library(grafeoR)

db <- grafeo_db()

db$execute("INSERT (:Person {name: 'Alix', age: 30})")
db$execute("INSERT (:Person {name: 'Gus', age: 41})")

people <- db$query("MATCH (p:Person) RETURN p.name, p.age")
people

tx <- db$begin()
tx$execute("INSERT (:Person {name: 'Committed'})")
tx$commit()

db$info()
grafeo_version()

db$close()

Real-World Example: OpenFlights

The package bundles a compact OpenFlights subset for offline demos and smoke tests:

• 20 airports with the highest outbound route counts in the upstream snapshot
• 1,129 airline route records whose endpoints are both inside that 20-airport subset

Load the bundled data directly in R:

library(grafeoR)

sample <- openflights_sample_data()

dim(sample$airports)
dim(sample$routes)
sample$metadata

Run the full real-world example:

Rscript inst/examples/openflights-example.R

That script:

• loads the bundled OpenFlights sample into an in-memory Grafeo database
• inserts airports as nodes and routes as edges
• queries airport and route data back into R
• saves openflights-top-hubs.png and openflights-route-map.png

Vignettes And Examples

Vignettes:

• Getting Started
• OpenFlights Analysis

Runnable examples:

• Basic example
• OpenFlights example

API Surface

User-facing functions:

• grafeo_db()
• grafeo_version()
• openflights_sample_data()

grafeo_db() returns an R6 database handle with:

• db$execute(query)
• db$query(query)
• db$begin()
• db$info()
• db$close()

Transactions use an R6 handle with:

• tx$execute(query)
• tx$query(query)
• tx$commit()
• tx$rollback()

Example: Persistent Database

library(grafeoR)

db <- grafeo_db(path = "example.grafeo", in_memory = FALSE)
db$execute("INSERT (:Person {name: 'Persistent'})")
db$close()

db <- grafeo_db(path = "example.grafeo", in_memory = FALSE)
db$query("MATCH (p:Person) RETURN p.name")
db$close()

OpenFlights Attribution

The bundled sample data is derived from OpenFlights:

• https://openflights.org/data.php
• https://raw.githubusercontent.com/jpatokal/openflights/master/data/airports.dat
• https://raw.githubusercontent.com/jpatokal/openflights/master/data/routes.dat

The bundled attribution note is in inst/extdata/openflights-README.md.

OpenFlights states that the Airport, Airline, Plane and Route databases are made available under the Open Database License (ODbL) v1.0, with individual contents under the Database Contents License (DbCL) v1.0.

Upstream Grafeo

• Grafeo GitHub: https://github.com/GrafeoDB/grafeo
• Grafeo docs: https://grafeo.dev/