Changelog

get_stats(), get_cp(), get_cp_ki(), and get_aux() now check their arguments before making an API request. Invalid country codes, years, poverty lines, population shares, data versions, dates, response formats, and other options produce an error that names the argument. Country codes must be uppercase three-letter codes (or "all" where supported); get_cp_ki() requires exactly one country code. Inputs that were previously sent to the API without local validation may now fail before the request.
Tests for the 2011 PPP poverty-line defaults in get_cp() and get_cp_ki() now use mocked responses because the live API rejects these requests. Automated CRAN-mode checks skip live API integration tests so temporary gateway failures do not fail package checks. The package website displays examples without making live API requests during deployment.
Corrected API argument, return-value, and example documentation. The call_aux() example no longer makes a network request during package checks.

Use httr2
- API responses are now cached locally according to the PIP API cache policy from the PIP API responses headers
- pipr automatically handles retries when hitting the PIP API rate limiting threshold
- Improved translation of HTTP errors into R error messages
New helper functions delete_cache() and get_cache_info()

pipr 1.5.02026-09-30