GET/POST from flywire (graphene) servers with appropriate authorisation token

Usage

flywire_fetch(
  url,
  body = NULL,
  config = NULL,
  token = NULL,
  return = c("parsed", "text", "response"),
  cache = FALSE,
  retry = 0L,
  include_headers = FALSE,
  simplifyVector = TRUE,
  ...
)

Arguments

url: Full URL for brainmaps API endpoint
body: an R list with parameters that will be converted with jsonlite::toJSON and then passed on to POST. You can also pass a JSON character vector to have more control of the JSON encoding.
config: (optional) curl options, see httr::config for details.
token: Optional chunkedgraph token (otherwise the default one for the current segmentation will be used). Use NA to suppress use of a token.
return: One of "parsed", "text" (for raw JSON), or "response"
cache: Whether or not to cache responses (default FALSE)
retry: The number of times to retry the operation (default 0, FALSE=>0 and TRUE=>3). See the documentation of the times argument of httr::RETRY for further details.
include_headers: Whether to include basic headers from the http request as attributes on the parsed JSON object (default TRUE) when parse.json=TRUE.
simplifyVector: Whether to use jsonlite::simplifyVector
...: additional arguments passed to the httr::{RETRY} function. This may include a config list other named parameters etc.

Value

Either an R object based on parsing returned JSON, a character vector containing the raw JSON or a httr::response object, depending on the value of return.

authorisation

Your authorisation will be based on a chunked graph token normally stored at ~/.cloudvolume/secrets/cave-secret.json. See https://github.com/seung-lab/cloud-volume#cave-secretjson for the format. You will need to generate the token as advised by the FlyWire team. Search or ask for help #help_software in the FlyWire slack if you can't find the information. For more details see article on accessing-graphene-server.

Examples

# \donttest{
# convert a flywire state URL into a parsed neuroglancer scene information
# but see also flywire_expandurl
json=flywire_fetch("https://globalv1.flywire-daf.com/nglstate/5747205470158848",
  return="text")
ngl_segments(ngl_decode_scene(json), as_character = TRUE)
#> [1] "720575940619527173" "720575940628130268" "720575940630484179"
# }