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httr2 (development version)

httr2 1.0.1

  • req_perform_stream() gains a round = c("byte", "line") argument to control how the stream is rounded (#437).

  • req_retry() gives a clearer error if after returns the wrong type of value (#385).

  • req_template() now works when you have a bare : in a template that uses "uri" style (#389).

  • req_timeout() now resets the value of connecttimeout set by curl. This ensures that you can use req_timeout() to increase the connection timeout past 10s (#395).

  • url_parse() is considerably faster thanks to performance optimisations by and discussion with @DyfanJones (#429).

httr2 1.0.0

Function lifecycle

  • local_mock() and with_mock() have been deprecated in favour of local_mocked_responses() and with_mocked_responses() (#301).

  • multi_req_perform() is deprecated in favour of req_perform_parallel(). req_stream() is deprecated in favour of req_perform_stream() (#314).

  • oauth_flow_auth_code() deprecates host_name and port arguments in favour of using redirect_uri. It also deprecates host_ip since it seems unlikely that changing this is ever useful.

  • oauth_flow_auth_code_listen() now takes a single redirect_uri argument instead of separate host_ip and port arguments. This is a breaking change but I don't expect anyone to call this function directly (which was confirmed by a GitHub search) so I made the change without deprecation.

  • req_body_form() and req_body_multipart() now require data ...; they no longer accept a single list for compatibility with the 0.1.0 API.

Multiple requests

  • New req_perform_sequential() performs a known set of requests sequentially. It has an interface similar to req_perform_parallel() but with no limitations, and the cost of being slower (#361).

  • New req_perform_iterative() performs multiple requests, where each request is derived from the previous response (@mgirlich, #8).

  • req_perform_parallel() replaces multi_req_perform() to match the new naming scheme (#314). It gains a progress argument.

  • req_perform_iterative(), req_perform_parallel(), and req_perform_sequential() share a new error handling strategy. By default, errors will be bubbled up, but you can choose an alternative strategy with the on_error argument (#372).

  • A new family of functions resps_successes(), resps_failures(), resps_requests() and resps_data() make it easier to work with lists of responses (#357). Behind the scenes, these work because the request is now stored in the response (or error) object (#357).

  • resp_body_json() and resp_body_xml() now cache the parsed values so that you can use them repeatedly without worrying about the performance cost. This supports the design req_perform_iterative() by avoiding the need to carefully pass around a parsed object.

OAuth features

  • A new vignette("oauth") gives many more details about how OAuth works and how to use it with httr2 (#234), and the OAuth docs have been overhauled to make it more clear that you should use req_oauth_*(), not oauth_*() (#330).

  • If you are using an OAuth token with a refresh token, and that refresh token has expired, then httr2 will now re-run the entire flow to get you a new token (#349).

  • New oauth_cache_path() returns the path that httr2 uses for caching OAuth tokens. Additionally, you can now change the cache location by setting the HTTR2_OAUTH_CACHE env var. This is now more obvious to the user, because httr2 now informs the user whenever a token is cached.

  • oauth_flow_auth_code() gains a redirect_uri argument rather than deriving this URL automatically from the host_name and port (#248). It uses this argument to automatically choose which strategy to use to get the
    auth code, either launching a temporary web server or, new, allowing you to manually enter the details with the help of a custom JS/HTML page hosted elsewhere, or by copying and pasting the URL you're redirected to (@fh-mthomson, #326). The temporary web server now also respects the path component of redirect_uri, if the API needs a specific path (#149).

  • New oauth_token_cached() allows you to get an OAuth token while still taking advantage of httr2's caching and auto-renewal features. For expert use only (#328).

Other new features

  • @mgirlich is now a httr2 contributor in recognition of his many contributions.

  • req_cache() gains max_n, max_size, and max_age arguments to automatically prune the cache. By default, the cache will stay under 1 GB (#207).

  • New req_body_json_modify() allows you to iteratively modify a JSON body of a request.

  • New req_cookie_preserve() lets you use a file to share cookies across requests (#223).

  • New req_progress() adds a progress bar to long downloads or uploads (#20).

  • New resp_check_content_type() to check response content types (#190). resp_body_json() and friends give better errors if no Content-Type header is present in the response (#284).

  • New resp_has_body() returns a TRUE or FALSE depending on whether or not the response has a body (#205).

  • New resp_url(), resp_url_path(), resp_url_queries() and resp_url_query() to extract various part of the response url (#57).

  • req_url_query() gains a .multi parameter that controls what happens when you supply multiple values in a vector. The default will continue to error but you can use .multi = "comma" to separate with commas, "pipe" to separate with |, and "explode" to generate one parameter for each value (e.g. ?a=1&a=2) (#350).

  • New secret_encrypt_file() and secret_decrypt_file() for encrypting and decrypting files (#237).

Minor improvements and bug fixes

  • The httr2 examples now only run on R 4.2 and later so that we can use the base pipe and lambda syntax (#345).

  • OAuth errors containing a url now correctly display that URL (instead of the string "uri").

  • curl_translate() now uses the base pipe, and produces escapes with single quotes or raw strings in case double quotes can't be used (@mgirlich, #264). It gains the argument simplify_headers that removes some common but unimportant headers, like Sec-Fetch-Dest or sec-ch-ua-mobile (@mgirlich, #256). It also parses the query components of the url (@mgirlich, #259) and works with multiline commands from the clipboard (@mgirlich, #254).

  • local_mocked_responses() and with_mocked_responses() now accept a list of responses which will be returned in sequence. They also now correctly trigger errors when the mocked response represents an HTTP failure (#252).

  • oauth_flow_refresh() now only warns, not errors, if the refresh_token changes, making it a little easier to use in manual workflows (#186).

  • obfuscated() values now display their original call when printed.

  • req_body_json() gains custom content type argument and respects custom content-type set in header (@mgirlich, #189).

  • req_cache() now combine the headers of the new response with the headers of the cached response. In particular, this fixes resp_body_json/xml/html() on cached responses (@mgirlich, #277).

  • req_perform() now throws error with class httr2_failure/httr2_error if the request fails, and that error now captures the curl error as the parent. If the request succeeds, but the response is an HTTP error, that error now also has super class httr2_error. This means that all errors thrown by httr2 now inherit from the httr2_error class. See new docs in ?req_error() for more details.

  • req_perform()'s progress bar can be suppressed by setting options(httr2_progress = FALSE) (#251). Progress bars displayed while waiting for some time to pass now tell you why they're waiting (#206).

  • req_oauth_bearer_jwt() now includes the claim in the cache key (#192).

  • req_oauth_device() now takes a auth_url parameter making it usable (#331, @taerwin).

  • req_url_query() gains a .multi parameter that controls what happens when you supply multiple values in a vector. The default will continue to error but you can use .multi = "comma" to separate with commas, "pipe" to separate with |, and "explode" to generate one parameter for each value (e.g. ?a=1&a=2) (#350).

httr2 0.2.3

  • New example_url() to launch a local server, making tests and examples more robust.

  • New throttle_status() to make it a little easier to verify what's happening with throttling.

  • req_oauth_refresh() now respects the refresh_token for caching (@mgirlich, #178).

  • req_perform() now always sleeps before a request, rather than after it. It also gains an error_call argument and communicates more clearly where the error occurred (@mgirlich, #187).

  • req_url_path() and req_url_path_append() can now handle NULL or empty ... and the elements of ... can also have length > 1 (@mgirlich, #177).

  • sys_sleep() (used by req_retry() and req_throttle()) gains a progress bar (#202).

httr2 0.2.2

  • curl_translate() can now handle curl copied from Chrome developer tools (@mgirlich, #161).

  • req_oauth_*() can now refresh OAuth tokens. One, two, or even more times! (@jennybc, #166)

  • req_oauth_device() can now work in non-interactive environments, as intendend (@flahn, #170)

  • req_oauth_refresh() and oauth_flow_refresh() now use the envvar HTTR2_REFRESH_TOKEN, not HTTR_REFRESH_TOKEN (@jennybc, #169).

  • req_proxy() now uses the appropriate authentication option (@jl5000).

  • req_url_query() can now opt out of escaping with I() (@boshek, #152).

  • Can now print responses where content type is the empty string (@mgirlich, #163).

httr2 0.2.1

  • "Wrapping APIs" is now an article, not a vignette.

  • req_template() now appends the path instead of replacing it (@jchrom, #133)

httr2 0.2.0

New features

  • req_body_form(), req_body_multipart(), and req_url_query() now support multiple arguments with the same name (#97, #107).

  • req_body_form(), req_body_multipart(), now match the interface of req_url_query(), taking name-value pairs in .... Supplying a single list() is now deprecated and will be removed in a future version.

  • req_body_json() now overrides the existing JSON body, rather than attempting to merge with the previous value (#95, #115).

  • Implement req_proxy() (owenjonesuob, #77).

Minor improvements and bug fixes

  • httr_path class renamed to httr2_path to correctly match package name (#99).

  • oauth_flow_device() gains PKCE support (@flahn, #92), and the interactive flow is a little more user friendly.

  • req_error() can now correct force successful HTTP statuses to fail (#98).

  • req_headers() will now override Content-Type set by req_body_*() (#116).

  • req_throttle() correctly sets throttle rate (@jchrom, #101).

  • req_url_query() never uses scientific notation for queries (#93).

  • req_perform() now respects httr::with_verbose() (#85).

  • response() now defaults body to raw(0) for consistency with real responses (#100).

  • req_stream() no longer throws an error for non 200 http status codes (@DMerch, #137)

httr2 0.1.1

  • Fix R CMD check failures on CRAN

  • Added a NEWS.md file to track changes to the package.