cc_list_keys | R Documentation |
List CCAFS keys
cc_list_keys(prefix = NULL, delimiter = NULL, max = 1000, marker = NULL, ...)
prefix |
(character) string that limits the response to keys that begin with the specified prefix. the string can have spaces and newlines, which are removed internally - this allows the prefix to break across lines as prefixes can be very long |
delimiter |
(character) string used to group keys. Read the AWS doc for more detail. |
max |
(integer) number indicating the maximum number of keys to return (max 1000). |
marker |
(character) string that specifies the key to start with when listing objects in a bucket. Amazon S3 returns object keys in alphabetical order, starting with key after the marker in order. |
... |
Curl options passed on to crul::verb-GET |
This function lists keys from the CCAFS Amazon S3 bucket. Keys are essentially file paths. You can request data from any key that is a file (with a file extension, and has size > 0). Other keys are directories.
A tibble (a data.frame, basically), with the columms:
Key - object key
LastModified - Object creation date or the last modified date, whichever is the latest.
ETag - "entity tag", used for cache validation
Size - Size of the object, in bytes, divide by 10^6 to get mb (megabytes)
StorageClass - ignore, just useful for CCAFS maintainers
## Not run: cc_list_keys(max = 1) cc_list_keys() cc_list_keys(max = 10) cc_list_keys(prefix = "ccafs/ccafs-climate/data/ipcc_5ar_ciat_downscaled/") cc_list_keys(prefix = "ccafs/ccafs-climate/data/ipcc_5ar_ciat_downscaled/ rcp2_6/2030s/bcc_csm1_1/10min/") ## End(Not run)
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