R/redcap-event-instruments.R
redcap_event_instruments.RdExport the instrument-event mappings for a project (i.e., how the data collection instruments are designated for certain events in a longitudinal project). (Copied from "Export Instrument-Event Mappings" method of REDCap API documentation, v.10.5.1)
redcap_event_instruments(
redcap_uri,
token,
arms = NULL,
verbose = TRUE,
config_options = NULL,
handle_httr = NULL
)The uri/url of the REDCap server typically formatted as "https://server.org/apps/redcap/api/". Required.
The user-specific string that serves as the password for a project. Required.
A character string of arms to retrieve. Defaults to all arms of the project.
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,
data: A tibble::tibble() where each row represents one column
in the REDCap dataset.
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.
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.
# \dontrun{
uri <- "https://bbmc.ouhsc.edu/redcap/api/"
# Longitudinal project with one arm
token_1 <- "786334BEB4A87D572DD0E99C4BFCE144" # pid 2629
REDCapR::redcap_arm_export(redcap_uri=uri, token=token_1)$data
#> The list of arms was retrieved from the REDCap project in 0.2 seconds. The http status code was 200.
#> # A tibble: 1 × 2
#> arm_number arm_name
#> <int> <chr>
#> 1 1 Arm 1
REDCapR::redcap_event_instruments(redcap_uri=uri, token=token_1)$data
#> 3 event instrument metadata records were read from REDCap in 0.2 seconds. The http status code was 200.
#> # A tibble: 3 × 3
#> arm_num unique_event_name form
#> <int> <chr> <chr>
#> 1 1 intake_arm_1 collection
#> 2 1 dischage_arm_1 collection
#> 3 1 follow_up_arm_1 collection
# Project with two arms
token_2 <- "0434F0E9CF53ED0587847AB6E51DE762" # pid 212
REDCapR::redcap_arm_export(redcap_uri=uri, token=token_2)$data
#> The list of arms was retrieved from the REDCap project in 0.2 seconds. The http status code was 200.
#> # A tibble: 2 × 2
#> arm_number arm_name
#> <int> <chr>
#> 1 1 Drug A
#> 2 2 Drug B
REDCapR::redcap_event_instruments(redcap_uri=uri, token=token_2)$data
#> 25 event instrument metadata records were read from REDCap in 0.2 seconds. The http status code was 200.
#> # A tibble: 25 × 3
#> arm_num unique_event_name form
#> <int> <chr> <chr>
#> 1 1 enrollment_arm_1 demographics
#> 2 1 enrollment_arm_1 contact_info
#> 3 1 enrollment_arm_1 baseline_data
#> 4 1 dose_1_arm_1 patient_morale_questionnaire
#> 5 1 visit_1_arm_1 visit_lab_data
#> 6 1 visit_1_arm_1 patient_morale_questionnaire
#> 7 1 visit_1_arm_1 visit_blood_workup
#> 8 1 visit_1_arm_1 visit_observed_behavior
#> 9 1 dose_2_arm_1 patient_morale_questionnaire
#> 10 1 visit_2_arm_1 visit_lab_data
#> # ℹ 15 more rows
REDCapR::redcap_event_instruments(redcap_uri=uri, token=token_2, arms = c("1", "2"))$data
#> 25 event instrument metadata records were read from REDCap in 0.2 seconds. The http status code was 200.
#> # A tibble: 25 × 3
#> arm_num unique_event_name form
#> <int> <chr> <chr>
#> 1 1 enrollment_arm_1 demographics
#> 2 1 enrollment_arm_1 contact_info
#> 3 1 enrollment_arm_1 baseline_data
#> 4 1 dose_1_arm_1 patient_morale_questionnaire
#> 5 1 visit_1_arm_1 visit_lab_data
#> 6 1 visit_1_arm_1 patient_morale_questionnaire
#> 7 1 visit_1_arm_1 visit_blood_workup
#> 8 1 visit_1_arm_1 visit_observed_behavior
#> 9 1 dose_2_arm_1 patient_morale_questionnaire
#> 10 1 visit_2_arm_1 visit_lab_data
#> # ℹ 15 more rows
REDCapR::redcap_event_instruments(redcap_uri=uri, token=token_2, arms = "2")$data
#> 10 event instrument metadata records were read from REDCap in 0.2 seconds. The http status code was 200.
#> # A tibble: 10 × 3
#> arm_num unique_event_name form
#> <int> <chr> <chr>
#> 1 2 enrollment_arm_2 demographics
#> 2 2 enrollment_arm_2 contact_info
#> 3 2 enrollment_arm_2 baseline_data
#> 4 2 deadline_to_opt_ou_arm_2 contact_info
#> 5 2 first_dose_arm_2 patient_morale_questionnaire
#> 6 2 first_visit_arm_2 patient_morale_questionnaire
#> 7 2 first_visit_arm_2 visit_observed_behavior
#> 8 2 final_visit_arm_2 visit_observed_behavior
#> 9 2 final_visit_arm_2 completion_project_questionnaire
#> 10 2 deadline_to_return_arm_2 contact_info
# Classic project (without arms) throws an error
token_3 <- "9A81268476645C4E5F03428B8AC3AA7B" # pid 153
REDCapR::redcap_arm_export(redcap_uri=uri, token=token_3)$data
#> A 'classic' REDCap project has no arms. Retrieved in 0.2 seconds. The http status code was 400.
#> # A tibble: 0 × 2
#> # ℹ 2 variables: arm_number <int>, arm_name <chr>
# REDCapR::redcap_event_instruments(redcap_uri=uri, token=token_3)$data
# }