Convert dates to strings (and back again)

[richierocks]

Date fields need to be converted to strings before they can be sent to Asana or they cause an error. For example:

library(asana)
library(dcasana)
library(dplyr)

team_content_quality_gid <- dc_get_teams() %>%
  filter(name == "Content Quality") %>%
  pull(gid)

test_project <- asn_projects_create_in_team(
  team = team_content_quality_gid,
  name = "test-autogenerated-project",
  notes = "This is a test. Please delete this project."
)
test_task <- asn_tasks_create(
  projects = test_project$content$data$gid,
  name = 'Test Task 1',
  due_on = Sys.Date() + 1
)
#> Error in curl::handle_setform(handle, .list = req$fields): Unsupported value type for form field 'due_on'.

Ideally, all dates should automatically be converted to strings (using format()), rather than the user having to manually do this.