adls_create: Create and write to a file.

In ijlyttle/AzureDatalakeStore: REST API Client for Microsoft Azure Data Lake Store

Description

Create and write to a file.

Usage

adls_create(adls, file, path, overwrite = FALSE, permission = NULL)

Arguments

adls	adls S3 object, generated using adls().
file	form_file S3 object, representing the "thing" to be uploaded. You can compose this using httr::upload_file() or curl::form_file().
path	character, remote path, defined with respect to root-path in adls$base_url. You may find file.path() to be useful to compose the path.
overwrite	logical, indicating if existing (remote) file is to be overwritten.
permission	integer (octal form), permission to assign to the object.

Value

A logical indicating success of the operation.

See Also

WebHDFS documentation for "Open and Read a File"

Examples

## Not run: 
  # create token (assumes Azure native app)
  token <- AzureOAuth::oauth_token_azure(
    tenant_id = "aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee",
    application_id = "ffffffff-gggg-hhhh-iiii-jjjjjjjjjjjj",
    name = "foo"
  )

  # create adls object with base-URL and token
  adls_example <- adls(
    base_url = adls_url("bar"),
    token = token
  )

  # for this example, write a temporary file
  temp_file <- tempfile(fileext = ".csv")
  write.csv(iris, file = temp_file)

  # upload file
  adls_create(
    adls_example,
    file = httr::file_upload(temp_file),
    path = "iris.csv"
  )

## End(Not run)

ijlyttle/AzureDatalakeStore documentation built on May 5, 2019, 5:56 p.m.