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Retrieve Object Metadata from MinIO

Source: R/minio_get_metadata.R
minio_get_metadata.Rd

Retrieves metadata (HTTP headers) for an object stored in a MinIO bucket using a HEAD request. Before querying metadata, the function verifies that the object exists using minio_object_exists. If the object does not exist, an error is raised.

Usage

minio_get_metadata(bucket, object, quiet = TRUE, use_https = TRUE, region = "")

Arguments

bucket

Character. Name of the MinIO bucket.

object

Character. Object key (path) within the bucket.

quiet

Logical. If TRUE (default), suppresses informational messages emitted by the underlying client during the HEAD request.

use_https

Logical. Whether to use HTTPS when connecting to MinIO.

region

Character. Region string required by aws.s3.

Value

A named list containing object metadata with the following elements:

  • exists: Always TRUE if the function returns.

  • bucket: Bucket name.

  • object: Object key.

  • size: Object size in bytes.

  • last_modified: Last modification date (character).

  • etag: Object ETag.

  • content_type: Content type.

  • headers: Full list of headers returned by MinIO.

Details

The returned information typically includes object size, last modification date, ETag, content type, and other headers provided by MinIO.

Examples

if (FALSE) { # \dontrun{
info <- minio_get_metadata("assets", "path/file.parquet")
info$size
info$last_modified
} # }