info: Retrieve Metadata from an Object Store
In bwlewis/feathercache: Simple networked object cache

Description Usage Arguments Value Note See Also Examples

Retrieve metadata like last modified time and size corresponding to the specified key from the object store service connection con. If key corresponds to a directory, then a data frame listing the directory contents is returned.

1	info(con, key = "")

`con`	An object store connection from `register_service`.
`key`	A key name, optionally including a `/` separated directory path.

Either a data frame directory listing when key corresponds to a directory, or an R list of headers and their values corresponding to key.

Corresponds to the HTTP HEAD operations. Directory entries in the data frame directory listing output are identified by size=NA.

register_service uncache delete

# Start an example local mongoose backend server
mongoose_start()
con <- register_service()
# Cache the 'iris' dataset in a directory named 'mydata':
cache(con, iris, "mydata/iris")
# Print some info about it
info(con, "mydata/iris")
# Retrieve it from the cache into a new variable called 'x'
x <- uncache(con, "mydata/iris")
# Delete the entire 'mydata' directory
delete(con, "mydata")
mongoose_stop()