github tmenier/Flurl Flurl.Http.3.0.0-pre6
Flurl.Http 3.0

[Features to be pre-released incrementally. Will update here.]

New Features

  • FlurlResponse introduced, primarily to enable inspecting response and deserializing body in separate steps. (#354)
  • Major overhaul of cookie functionality. (#506)
  • Overhaul of redirect handling. (#500)
  • Tests can be set up to return different fake responses depending on the URL or any other request conditions. (#481)
  • HttpTest.ForCallsTo(...).AllowRealHttp() for allowing real calls to be made in a test for specific URLs or any other request conditions. (#225)
  • New/more complete set of test assertions for headers and cookies. (#508)
  • All extension methods on Flurl.Url and string are now also available on System.Uri. (#489)
  • Providing a body for PostAsync, PutAsync, and PatchAsync now optional. (#515)

Breaking Changes from 2.x

Making HTTP calls

  • Fluent methods that previously returned HttpResponseMessage (such GetAsync, PostAsync, etc) now return FlurlResponse. If you're using GetJsonAsync or chaining ReceiveXXX methods, this shouldn't break anything. (#354)
  • HttpCall is now FlurlCall, and several properties of FlurlCall and FlurlHttpException were moved or renamed. (#488)
  • Slightly different rules on when a redirect causes the verb to change to GET. (Never on 300, always on 303. #500)
  • Minor changes to CapturedStringContent constructors. (#452)


  • New collection type for IFlurlRequest.Headers and IFlurlClient.Headers. (#541)
  • HttpRequestMessage.GetHeaderValue and HttpResponseMessage.GetHeaderValue extension methods removed. (#553)
  • For multipart requests, Content-Type header for text parts allowed but not defaulted. (#452)
  • Cookie request header and Set-Cookie response headers are always visible in Headers collection of request and response. (#506)


  • CookiesEnabled removed at all settings levels. (#506)
  • Cookies, WithCookie and WithCookies removed from IFlurlClient. Use CookieSession instead. (#506)
  • IFlurlRequest.Cookies is now read-only IEnumerable<(string Name, string Value)>. Use WithCookies instead. (#506)


  • When asserting a specific URL was called, it must be a full string match rather than "contains" or "starts with". Add a * wildcard to the beginning or end if you need partial match behavior. (#323)
  • When faking responses in tests, the last response in the queue becomes "sticky" rather than falling back to empty 200 responses. (#482)
  • HttpTest.ResponseQueue public property has been removed. Underlying queue implementation changed significantly to support new features, and hopefully accessing it directly isn't needed. Use RespondWith methods to build the queues.
  • Minor changes/enhancements to HttpCallAssertion. (#483)


  • UseCookies and AllowAutoRedirect are disabled on the default HttpClientHandler . Any custom factory-provided handler must do the same if Flurl's new cookie and redirect features are required. (#500 & #506)
  • Default HttpClient caching strategy based on host, scheme, and port, rather than just host. (#550)
  • Dropping support for older platforms. (#544)

Bug Fixes

  • In tests, dequeuing fake responses is fully thread-safe. (#366)
  • Culture-neutral string comparisons throughout library. (#485)
latest releases: Flurl.Http.3.2.0, Flurl.Http.3.1.0, Flurl.3.0.2...
7 months ago