retrieve and cache all filenames of Semantic SQL ontologies available, checking for updated content relative to cache via ETag

retrieve and cache all filenames of Semantic SQL ontologies available, checking for updated content relative to cache via ETag

Usage

bbop_sqlite_db_gz(
  url = "https://s3.amazonaws.com/bbop-sqlite",
  bfc = BiocFileCache::BiocFileCache(),
  rname = "bbop_sqlite_listing",
  timeout_connect = 5,
  timeout_total = 15
)

Arguments

url

source address

bfc

an instance of BiocFileCache

rname

a string to use to identify the cached listing

timeout_connect

passed to httr2::req_options connecttimeout parameter

timeout_total

passed to httr2::req_options seconds parameter

Value

a character vector

Note

There is no real etag discipline for the metadata, so full metadata content is extracted on each call, digested, and compared to digest in cache. Cache is updated when there is a discrepancy, except there is a guard against rewriting cache with corrupted or zero-length data at endpoint. Note this code was negotiated at length with claude.ai Sonnet 4.6.

Examples

gzs = bbop_sqlite_db_gz()
#> Fetching bucket listing...
#> Content hash matches; using cached listing.
head(gzs)
#> [1] "ado.db.gz"   "agro.db.gz"  "aio.db.gz"   "aism.db.gz"  "amphx.db.gz"
#> [6] "apo.db.gz"  
length(gzs)
#> [1] 332