httr2 1.1.1

New features

• req_perform_parallel() lifts many of the previous restrictions. It supports simplified versions of req_throttle() and req_retry(), can refresh OAuth tokens, and checks the cache before/after each request. (#681).
• Default verbosity can be controlled by the HTTR2_VERBOSITY environment variable (#687).
• local_verbosity() matches the existing with_verbosity() and allows for local control of verbosity (#687).
• req_dry_run() and req_verbose() display compressed correctly (#91, #656) and automatically prettify JSON bodies (#668). You can suppress prettification with options(httr2_pretty_json = FALSE) (#668).
• req_throttle() implements a new "token bucket" algorithm that maintains average rate limits while allowing bursts of higher request rates.

Minor improvements and bug fixes

• aws_v4_signature() correctly processes URLs containing query parameters (@jeffreyzuber, #645).
• oauth_client() and oauth_token() implement improved print methods with bulleted lists, similar to other httr2 objects, and oauth_client() with custom auth functions no longer produces errors (#648).
• req_dry_run() omits headers that would vary in tests and can prettify JSON output.
• req_headers() automatically redacts Authorization headers (#649) and correctly implements case-insensitive modification of existing headers (#682).
• req_headers_redacted() now supports dynamic dots (#647).
• req_oauth_auth_code() no longer adds trailing "/" characters to properly formed redirect_uri values (@jonthegeek, #646).
• req_perform_connection() produces more helpful error messages when requests fail at the networking level.
• req_perform_parallel(pool) now is deprecated in favour of a new max_active argument (#681).
• req_user_agent() memoizes the default user agent to improve performance, as computing version numbers is relatively slow (300 µs).
• resp_link_url() once again respects the case insensitivity for header names (@DavidRLovell, #655).
• resp_stream_sse() automatically retrieves the next event when the current event contains no data, and returns data as a single string (#650).
• str() correctly redacts redacted headers (#682).