Read/Export records that populate a REDCap report

Exports the data set of a report created on a project's 'Data Exports, Reports, and Stats' page.

redcap_report(
  redcap_uri,
  token,
  report_id,
  raw_or_label = "raw",
  raw_or_label_headers = "raw",
  export_checkbox_label = FALSE,
  col_types = NULL,
  guess_type = TRUE,
  guess_max = 1000,
  verbose = TRUE,
  config_options = NULL,
  handle_httr = NULL
)

Arguments

redcap_uri: The uri/url of the REDCap server typically formatted as "https://server.org/apps/redcap/api/". Required.
token: The user-specific string that serves as the password for a project. Required.
report_id: A single integer, provided next to the report name on the report list page. Required.
raw_or_label: A string (either 'raw' or 'label') that specifies whether to export the raw coded values or the labels for the options of multiple choice fields. Default is 'raw'.
raw_or_label_headers: A string (either 'raw' or 'label' that specifies for the CSV headers whether to export the variable/field names (raw) or the field labels (label). Default is 'raw'.
export_checkbox_label: specifies the format of checkbox field values specifically when exporting the data as labels. If raw_or_label is 'label' and export_checkbox_label is TRUE, the values will be the text displayed to the users. Otherwise, the values will be 0/1.
col_types: A readr::cols() object passed internally to readr::read_csv(). Optional.
guess_type: A boolean value indicating if all columns should be returned as character. If true, readr::read_csv() guesses the intended data type for each column. Ignored if col_types is not null.
guess_max: A positive base::numeric value passed to readr::read_csv() that specifies the maximum number of records to use for guessing column types.
verbose: A boolean value indicating if messages should be printed to the R console during the operation. The verbose output might contain sensitive information (e.g. PHI), so turn this off if the output might be visible somewhere public. Optional.
config_options: A list of options passed to httr::POST(). See details at httr::httr_options(). Optional.
handle_httr: The value passed to the handle parameter of httr::POST(). This is useful for only unconventional authentication approaches. It should be NULL for most institutions. Optional.

Value

Currently, a list is returned with the following elements:

data: A tibble::tibble() of the desired records and columns.
success: A boolean value indicating if the operation was apparently successful.
status_code: The http status code of the operation.
outcome_message: A human readable string indicating the operation's outcome.
elapsed_seconds: The duration of the function.
raw_text: If an operation is NOT successful, the text returned by REDCap. If an operation is successful, the raw_text is returned as an empty string to save RAM.

References

The official documentation can be found on the 'API Help Page' and 'API Examples' pages on the REDCap wiki (i.e., https://community.projectredcap.org/articles/456/api-documentation.html and https://community.projectredcap.org/articles/462/api-examples.html). If you do not have an account for the wiki, please ask your campus REDCap administrator to send you the static material.

Author

Will Beasley

Examples

# \dontrun{
uri          <- "https://bbmc.ouhsc.edu/redcap/api/"
token        <- "9A81268476645C4E5F03428B8AC3AA7B"
report_1_id  <- 5980L
report_2_id  <- 6431L

# Return all records and all variables.
ds_1a <-
  REDCapR::redcap_report(
    redcap_uri = uri,
    token      = token,
    report_id  = report_1_id
  )$data
#> 5 records and 5 columns were read from REDCap in 0.2 seconds.  The http status code was 200.


# Specify the column types.
col_types_1 <- readr::cols(
  record_id          = readr::col_integer(),
  height             = readr::col_double(),
  health_complete    = readr::col_integer(),
  address            = readr::col_character(),
  ethnicity          = readr::col_integer()
)
ds_1b <-
  REDCapR::redcap_report(
    redcap_uri = uri,
    token      = token,
    report_id  = report_1_id,
    col_types  = col_types_1
  )$data
#> 5 records and 5 columns were read from REDCap in 0.2 seconds.  The http status code was 200.


# Return condensed checkboxes Report option:
#   "Combine checkbox options into single column of only the checked-off
#   options (will be formatted as a text field when exported to
#   stats packages)"
col_types_2 <- readr::cols(
  record_id          = readr::col_integer(),
  race               = readr::col_character()
)
ds_2 <-
  REDCapR::redcap_report(
    redcap_uri = uri,
    token      = token,
    report_id  = report_2_id,
    col_types  = col_types_2
  )$data
#> 5 records and 2 columns were read from REDCap in 0.2 seconds.  The http status code was 200.
# }