C3.ai COVID-19 Data Lake Quickstart in R - r

Question

I am working on a research assignment on COVID and using the datalake API to fetch different kind of datasets available to us.
I am wondering if it's possible to fetch all outbreak countries.
ids = list("Australia"), this works with individual country, it doesnt seem to accept wildcard or all.
Can anyone give me any insights on this please.
# Total number of confirmed cases in Australia and proportion of getting infected.
today <- Sys.Date()
casecounts <- evalmetrics(
"outbreaklocation",
list(
spec = list(
**ids = list("Australia"),**
expressions = list("JHU_ConfirmedCasesInterpolated","JHU_ConfirmedDeathsInterpolated"),
start = "2019-12-20",
end = today-1,
interval = "DAY"
)
)
)
casecounts

Answer 1

The easiest way to access a list of countries is in the Excel file linked at https://c3.ai/covid-19-api-documentation/#tag/OutbreakLocation. It has a list of countries in the first sheet, and shows which of those have data from JHU.
You could also fetch an approximate list of country-level locations with:
locations <- fetch(
"outbreaklocation",
list(
spec = list(
filter = "not(contains(id, '_'))"
)
)
)
That should contain all of the countries, but could have some non-countries like World Bank regions.
Then, you'd use this code to get the time series data for all of those locations:
location_ids <-
locations %>%
dplyr::select(-location) %>%
unnest_wider(fips, names_sep = ".") %>%
sample_n(15) %>% # include this to test on a smaller set
pull(id)
today <- Sys.Date()
casecounts <- evalmetrics(
"outbreaklocation",
list(
spec = list(
ids = location_ids,
expressions = list("JHU_ConfirmedCasesInterpolated","JHU_ConfirmedDeathsInterpolated"),
start = "2019-12-20",
end = today-1,
interval = "DAY"
)
),
get_all = TRUE
)
casecounts