wraps a data frame in a list and or unboxes list items that are 1 row dataframes. This will result in an array of objects being created.
See also
Other JSON Prep:
clean_field_names()
,
get_entity()
,
prep_affiliation()
,
prep_atomic()
,
prep_creators()
,
prep_data()
,
prep_descriptions()
,
prep_for_json()
,
prep_from_metadata_template()
,
prep_fundingReferences()
,
prep_identifier()
,
prep_language()
,
prep_methodology()
,
prep_methods()
,
prep_nameIdentifiers()
,
prep_object()
,
prep_publicationYear()
,
prep_relatedIdentifiers()
,
prep_rights()
,
prep_subjects()
,
prep_titles()
Examples
# note that you cannot unbox data frames with more than 1 row
x <- list(
tibble::tibble(age = 1, group = letters[1]),
tibble::tibble(age = 2, group = letters[2])
)
# running jsonlite::toJSON on an unmodified object results in
# extra square brackets - an array of arrays of objects
jsonlite::toJSON(x, pretty = TRUE)
#> [
#> [
#> {
#> "age": 1,
#> "group": "a"
#> }
#> ],
#> [
#> {
#> "age": 2,
#> "group": "b"
#> }
#> ]
#> ]
# with the prepped data we get an array of objects
x_prepped <- prep_array_objects(x)
x_prepped |>
jsonlite::toJSON(pretty = TRUE)
#> [
#> {
#> "age": 1,
#> "group": "a"
#> },
#> {
#> "age": 2,
#> "group": "b"
#> }
#> ]