read_parquet: Read Parquet file with optional decryption

In rcdf: A Comprehensive Toolkit for Working with Encrypted Parquet Files

Read Parquet file with optional decryption

Description

This function reads a Parquet file, optionally decrypting it using the provided decryption key. If no decryption key is provided, it reads the file normally without decryption. It supports reading Parquet files as Arrow tables or regular data frames, depending on the 'as_arrow_table' argument.

Usage

read_parquet(path, ..., decryption_key = NULL, as_arrow_table = TRUE)

Arguments

path	The file path to the Parquet file.
...	Additional arguments passed to 'arrow::open_dataset()' when no decryption key is provided.
decryption_key	A list containing 'aes_key' and 'aes_iv'. If provided, the Parquet file will be decrypted using these keys. Default is 'NULL'.
as_arrow_table	Logical. If 'TRUE', the function will return the result as an Arrow table. If 'FALSE', a regular data frame will be returned. Default is 'TRUE'.

Value

An Arrow table or a data frame, depending on the value of 'as_arrow_table'.

Examples

# Using sample Parquet files from `mtcars` dataset
dir <- system.file("extdata", package = "rcdf")

# Without decryption
df <- read_parquet(file.path(dir, "mtcars.parquet"))
df

# With decryption
decryption_key <- list(
  aes_key = "5bddd0ea4ab48ed5e33b1406180d68158aa255cf3f368bdd4744abc1a7909ead",
  aes_iv = "7D3EF463F4CCD81B11B6EC3230327B2D"
)

df_with_encryption <- read_parquet(
  file.path(dir, "mtcars-encrypted.parquet"),
  decryption_key = decryption_key
 )
df_with_encryption

rcdf documentation built on Aug. 28, 2025, 9:09 a.m.