Write an Object to MinIO (Auto-detect by Extension)

Serializes an R object to bytes (raw) based on the file extension of object and uploads it to MinIO using minio_put_object.

Usage

minio_write_object(
  bucket,
  object,
  x,
  ...,
  content_type = NULL,
  multipart = FALSE,
  use_https = TRUE,
  region = ""
)

Arguments

bucket: Character. Name of the MinIO bucket.
object: Character. Object key (path) within the bucket. Extension is used to infer the serialization format.
x: R object to serialize and upload (often a data.frame, list, model, etc.).
...: Additional arguments passed to the underlying writer function.
content_type: Character or NULL. Optional MIME type. If NULL, a sensible default is used based on the extension.
multipart: Logical. Whether to use multipart upload. Defaults to FALSE.
use_https: Logical. Whether to use HTTPS when connecting to MinIO.
region: Character. Region string required by aws.s3.

Value

Invisibly returns TRUE if the upload was successful.

Details

Supported formats are selected by extension:

.csv via utils::write.csv()
.parquet / .pq via arrow::write_parquet()
.json via jsonlite::toJSON()
.xlsx via writexl::write_xlsx()
.feather via feather::write_feather()
.dta via haven::write_dta()
.rds via saveRDS()
.rda / .RData via save()

Additional arguments (...) are forwarded to the underlying writer selected by extension.

Examples

if (FALSE) { # \dontrun{
# CSV
minio_write_object("assets", "tmp/df.csv", mtcars, row.names = FALSE)

# JSON (returns JSON in MinIO)
minio_write_object("assets", "tmp/config.json", list(a = 1, b = TRUE), auto_unbox = TRUE)

# RDS
minio_write_object("assets", "tmp/model.rds", lm(mpg ~ wt, data = mtcars))

# RData (stores an object named 'x' by default)
minio_write_object("assets", "tmp/objects.RData", mtcars)
} # }