Import metadata (i.e., data dictionary) into a project. Because of this method's destructive nature, it works for only projects in Development status.

  verbose = TRUE,
  config_options = NULL,
  handle_httr = NULL



The base::data.frame() or tibble::tibble() to be imported into the REDCap project. Required.


The uri/url of the REDCap server typically formatted as "". Required.


The user-specific string that serves as the password for a project. Required.


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.


A list of options passed to httr::POST(). See details at httr::httr_options(). Optional.


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.


Currently, a list is returned with the following elements:

  • 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.

  • field_count: Number of fields imported.

  • 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.


The official documentation can be found on the 'API Help Page' and 'API Examples' pages on the REDCap wiki. If you do not have an account for the wiki, please ask your campus REDCap administrator to send you the static material.


Will Beasley


# \dontrun{
# Please don't run this example without changing the token to
# point to your server.  It could interfere with our testing suite.
uri            <- ""
token          <- "457C24AB91B7FCF5B1A7DA67E70E24C7"

# Read in the dictionary in R's memory from a csv file.
ds_to_write <-
    file = system.file(
      package = "REDCapR"
    col_types = readr::cols(.default = readr::col_character())
#> # A tibble: 16 × 18
#>    field_name form_name          section_header      field_type field_label     
#>    <chr>      <chr>              <chr>               <chr>      <chr>           
#>  1 record_id  demographics       NA                  text       Study ID        
#>  2 name_first demographics       Contact Information text       First Name      
#>  3 name_last  demographics       NA                  text       Last Name       
#>  4 address    demographics       NA                  notes      Street, City, S…
#>  5 telephone  demographics       NA                  text       Phone number    
#>  6 email      demographics       NA                  text       E-mail          
#>  7 dob        demographics       NA                  text       Date of birth   
#>  8 age        demographics       NA                  calc       Age (years)     
#>  9 sex        demographics       NA                  radio      Gender          
#> 10 height     health             NA                  text       Height (cm)     
#> 11 weight     health             NA                  text       Weight (kilogra…
#> 12 bmi        health             NA                  calc       BMI             
#> 13 comments   health             General Comments    notes      Comments        
#> 14 mugshot    health             NA                  file       Mugshot         
#> 15 race       race_and_ethnicity NA                  checkbox   Race (Select al…
#> 16 ethnicity  race_and_ethnicity NA                  radio      Ethnicity       
#> # ℹ 13 more variables: select_choices_or_calculations <chr>, field_note <chr>,
#> #   text_validation_type_or_show_slider_number <chr>,
#> #   text_validation_min <chr>, text_validation_max <chr>, identifier <chr>,
#> #   branching_logic <chr>, required_field <chr>, custom_alignment <chr>,
#> #   question_number <chr>, matrix_group_name <chr>, matrix_ranking <chr>,
#> #   field_annotation <chr>

# Import the dictionary into the REDCap project
  ds          = ds_to_write,
  redcap_uri  = uri,
  token       = token
#> 16 fields were written to the REDCap dictionary in 0.2 seconds.
#> $success
#> [1] TRUE
#> $status_code
#> [1] 200
#> $outcome_message
#> [1] "16 fields were written to the REDCap dictionary in 0.2 seconds."
#> $field_count
#> [1] 16
#> $elapsed_seconds
#> [1] 0.244472
#> $raw_text
#> [1] ""
# }