CHANGELOG.md

Changelog

This list is not currently intended to be all-encompassing - it will document major and breaking API changes with their rationale when appropriate:

v3.140.0

• [all] Update dependencies (including Kotlin bump to 1.3.31)
• [http4k-security-oauth] Handle user rejecting/failing authentication. H/T @andymoody

v3.139.0

• Allow access token generation to explicitly reject an authorization code already used. H/T @andymoody

v3.138.1

• Amend error responses from access token generation. H/T @andymoody

v3.138.0

• Tweaks to Security model for http4k-contracts. (Renamed) ApiKeySecurity is now a proper class, and added BasicAuthSecurity. You can now also override the security model on a per-route basis.
• Added ability to set the Security on each individual contract route. This overrides any Security set on a contract-level basis.

v3.137.1

• Allow invocation of serverless functions locally. H/T @Charlyzzz
• Fix #226 - ResourceLoadingHandler not close stream

v3.137.0

• Rename AuthRequestPersistence to AuthRequestTracking

v3.136.0

• Allow the http request to be referenced when generating OAuth authorization codes. H/T @andymoody

v3.135.0

• Change mime.types location so it doesn't conflic with other libraries. H/T @benusher and @dgliosca
• Added SnipRequestBody behaviour to http4k-testing-chaos module.
• (Small) Breaking Fixed location of some extension files to be relevant to the particular package that they are referencing. This will require reimporting the new location into your source if you were using the imports.

v3.134.0

• Made content-type aware approval tests check the content type after the content. This is friendlier for failing tests, as it is more important that the content is correct than the content-type (and often errors don't have content type set so you get an erroneous error message which masks the fact that the content was wrong).

v3.133.0

• HandleUpstreamRequestFailed client filter now takes a predicate (Response) -> Boolean instead of a boolean. This allows for more fine grained custom control of which Responses are acceptable.
• Upgrade deps, including Kotlin to 1.3.30.
• Fix #221 - Contract path fixed segments cannot contain slash characters.

v3.132.0

• Convert Jackson to use readValue instead of convertValue. This fixes some problems with type conversions.

v3.131.0

• (Possible) Break: Made lense implementations Query, Header etc clear previous values by default instead of appending. This leads to a more consistent behaviour. In order to be able to set multiple values on an object using a lense, use the multi form instead - eg. Header.required("foo") -> Header.multi.required("foo"). We envisage the impact of this change is limited as it's only Queries that generally can have multiple possible values, and in the vast majority of cases a replace rather than append is expected.

v3.130.0

• Generify contract handling code to allow for custom HttpMessageMeta<XYZ>

v3.129.0

• (Slight) Break: Collapsed UpstreamRequestFailed exceptions to contain the status, and thus removing non-special cases like BadRequest and BadGateway. This makes them much easier to use in practice as users have access to the the status. To migrate, simply replace previous classes with UpstreamRequestFailed(Status.XYZ, message).
• Open up ContractRoute API to facilitate extension when defining a custom ContractRenderer.
• Upgrade deps.

v3.128.0

• Added base64 to the supported mappings for Query/Headers etc...
• Approver does not write actual output if there is none to write and there is no approved content

v3.127.0

• http4k-testing-approval: Improved Approver interface to more closely match the traditional assert<XYZ> approach - this results in a more discoverable/obvious API.
• Added ability to create a Hamkrest matcher directly from the Approver instance to be combined with other relevant matchers.

v3.126.0

• Add support for XML and HTML approval tests in http4k-testing-approval module.

v3.125.0

• Added http4k-testing-approval module, which is compatible with JUnit5 tests and integrates with the OkeyDoke approval testing files and IntelliJ plugin. H/T to @jshiell for the inspiration Gist containing the base Junit5 Extension.

v3.124.0

• Make authentication response available when creating AuthorizationCode .

v3.123.0

• Introduce OAuthServer to http4k-security-oauth to assist in the creation of authorization servers.

v3.122.0

• Generified GenerateXmlDataClasses filter, and added default implementations for http4k-format-jackson-xml and http4k-format-xml modules.
• (Rename) Break: GenerateXmlDataClasses filter in http4k-format-xml is now GsonGenerateXmlDataClasses
• Removed superfluous CatchLensFailure filter from http4k-contracts module. This is not required as lens failures are already handled by the main contract handler.

v3.121.0

• Moved Jackson XML support to new module http4k-format-jackson-xml. Note that this is for auto-marshalling of data-classes only and does not expose an XML DOM model.

v3.120.0

• Deprecated Body.view() lens construction in favour of a Body.viewModel() call which removes the implicitly called toLens(). This allows further mapping from one ViewModel type to another, and brings the view lens construction into line with the rest of the extension functions on Body.
• Add auto-marshalling XML support to http4k-format-jackson module.
• Upgrade deps.

v3.119.0

• Add UpstreamRequestFailed exceptions and HandleUpstreamRequestFailed filters to http4k-cloudnative. These allow apps to neatly deal with upstream failure in a sensible way.

v3.118.0

• Tweak contract() DSL to add remaining options for configuration.

v3.117.0

• Renamed ChaosControls (deprecated) to ChaosEngine.

v3.116.0

• Added new templating module http4k-templates-freemarker. H/T @amcghie for the PR implementing this
• http4k-contract has a new DSL for construction of the contract which replaces the old one (now deprecated). This is consistent with the meta DSL used to construct individual contract routes and avoids repetition of the old API. We attempted to implement the standard replace-with deprecation, but IntelliJ didn't like it (too complex maybe), so we've hard coded the warning instead which code which should work.
• Added PreFlightExtraction to contract module, which adds the ability to disable body-checking for contract routes. This will allow refining of routes or entire contracts to be more efficient.
• Upgrade deps.

v3.115.1

• Fix #217 - Cannot override the definitionId of a top-level array in OpenAPI
• Upgrade deps

v3.115.0

• Chaos now do not blat x-uri-template when used with a RoutingHttpHandler
• Simplified usage of Once chaos trigger.
• (Slight break) Consistentified (!) construction of Chaos Behaviours, Stages and Triggers. Replaced singletons with function calls. Eg. Always -> Always()

v3.114.0

• (Possible Break): Fix #215 - LensFailure does not always include target object. Only change to the API is that IN generic in Lenses is now bounded by IN : Any. This fix is a actually internally consistent as we could not always include the target otherwise (which is an Any?).
• Trim leading and trailing whitespace from extracted EnvironmentKey values.
• Secret value is now only usable once via the use() function.
• Upgrade to various deps.
• Removed deprecations.

v3.113.0

• Added some common types for Environmental setup, and equivalent BiDiLens mappings
• Handle null response in Java Http client. H/T @FredNordin

v3.112.2

• Fix #212 - allow null values in HTTP contract definitions. This does mean we lose the type definition for that field, but we don't blow up silently (which was the previous behaviour). H/T @xhanin

v3.112.1

• Re-add Path.nonEmptyString() which was accidentally removed.

v3.112.0

• Add support for prohibiting String unmarshalling in JSON auto-marshalling configuration.
• HTTP Contracts now use the underlying ContractRenderer to produce the BadRequest and NotFound responses. Made OpenAPI open so that these responses can be customised.

v3.111.0

• Add support for JSON views in Jackson module. H/T @xhanin for the donkey work.

v3.110.0

• Breaking: slight rearrangement of RouteMeta receiving/returning methods to provide consistency when defining route contracts.

v3.109.0

• Moved the set of predefined String BiDiMapping instances to their own class. Bulked out the auto-mapping configuration options.

v3.108.0

• Upgrade to various deps.
• Extracted out new BiDiMapping type, which encapsulates string <-> type conversions and removes a boatload of duplications. These conversions are now used consistently across all the various places (Lenses, auto-mapping).
• Improved configurability of AutoMarshallingJson instances.

v3.107.0

• Upgrade to various deps.
• Fix #208 - Xml auto deserialisation incorrectly converting strings to numbers

v3.106.1

• Fix #207 - repeating prefixes in static routes are not handled correctly. H/T @ruXlab for the PR to fix.

v3.106.0

• Add http4k-server-ktorcio server backend. Note that whilst this module does allow http4k apps to plug into the Ktor-CIO engine, it does not provide fully front-to-back coroutine support.

v3.105.0

• Preventing FallbackCacheControl from duplicating existing headers. H/T @leandronunes85
• Breaking: Make Body.length nullable instead of throwing exception when value is not available. H/T @zvozin

v3.104.0

• Upgrade to various deps.
• Add session token support to AWS filter, and "credentials provider" to allow for rotating AWS sessions. H/T @dhobbs.
• Breaking: Moved WsClient from org.http4k.testing to org.http4k.websocket.

v3.103.2

• Fix access-control-allow-origin returned when server supports multiple origins H/T @johnnorris

v3.103.1

• (Properly) Fix #198 - Rewrote OpenApi contract to ensure it stays fixed. H/T @reik-wargaming for the help in tracking this down.

v3.103.0

• "Fix" #198 - Breaking change made in http4k-contracts to clarify/deconfuse API. Hid body parameter in contract route meta DSL - it is now receiving().
• Upgraded some dependencies, including Gradle to v5.0.
• Breaking: Resilience4j dependency upgrade causes a break when providing custom config. Simply insert the Config type generic to fix: e.g. RetryConfig.custom() -> RetryConfig.custom<RetryConfig>()

v3.102.1

• Fix #197 - Swagger spec for form fields had incorrect description.

v3.102.0

• Introduce interface for Environment

v3.101.0

• Upgrades to dependencies
• Improved Client-side HTTP status descriptions
• Lenses now support Durations out of the box
• Environments now support multi-value keys (comma separated)

v3.100.0

• Make Undertow API friendlier
• Fix to JsonReadinessCheckResultRenderer to actually implement the correct interface

v3.99.0

• Enhancement of http4k-cloudnative - now supports extra-health check routes, and provide way to load app configuration via Properties files.

v3.98.0

• Add filter allowing Gzipping based on an allowed set of content types. H/T @jshiell
• Change HttpHandler extending HttpClients to use object invoke() mechanism, as the individual clients have no visible API surface of their own. Introduced DualSyncAsyncHttpHandler interface.

v3.97.0

• Webdriver checkbox handling improved. H/T @gypsydave5
• upgrade to various versions

v3.96.0

• upgrade to Kotlin 1.3.0

v3.95.1

• Tweak to K8S port variables.

v3.95.0

• (Unlikely break): Change Http4kServer interface to return Unit from stop(). This affects all server implementations.
• Added DSL function for working with JSON objects (scopes JSON as this). fun <T> Json<NODE>.invoke(Json<NODE>.() -> T)
• New module http4k-cloudnative contains classes to help run http4k services inside cloud-native environments, including K8S.
• Upgrade some dependencies
• Deprecation: Moved Header.Common fields to main Header object. Extension properties should go there now.

v3.94.1

• Use UTC when checking cookie expiry

v3.94.0

• Deprecate String.toBody()
• Fix checkbox behaviour in webdriver

v3.39.4 v3.93.4

• Use Jetty latest release version (rather than RC one)

v3.39.3

• Fix #189 - Uri toString now omits leading slash if the authority of a Uri is blank. This could be a potential break, but is actually more consistent as a Uri can currently be relative or absolute.

v3.39.2

• Extend SetBaseUriFrom to support query parameters

v3.39.1

• Added SetBaseUriFrom filter

v3.39.0

• (Possible breaking change): Json is now only generified by a single type parameter instead of 2. For most usages, this type would have been identical anyway, but the upgrade of Argo has finally allowed the removal of this dead generic. Simply replace Json<Node, Node> with Json<Node>.
• Added Offset datetime types to all JSON auto-marshalling libraries
• Build logic for versioning is now in Kotlin. H/T @jmfayard for the PR
• Upgrade Kotlin, and various other dependencies

v3.38.1

• Fix withChaosControls URL pattern so that it matches sub-routes ok on original handler

v3.38.0

• Added BearerAuth and BasicAuth implementations which populate RequestContexts. Plus cookbook example :)

v3.37.1

• Fix #177 - Make RequestContexts thread-safe.

v3.37.0

• Upgrades to http4k-testing-webdriver. H/T @dickon for the PRs
• Added ProxyHost request filter which is useful for writing proxy-type apps.

v3.36.1

• Fix #168 - Fix rest of hamkrest matchers caused by generics mishap.
• Upgrade HTTP client dependency versions.

v3.36.0

• Added http4k-testing-chaos module, designed to enhance failure-mode testing for http4k apps. Massive H/T to @IgorPerikov for the PR which drove this module's creation.
• Added http4k-incubator module, for hosting developing projects and other code which might be promoted to top-level modules in the future.

v3.35.2

• Fix #167 - Reintroduce hasBody compatibility with common matchers such as containsString()
• Remove deprecations.

v3.35.1

• Fix #165 - AWS auth filter does not replace headers - it sets them (which breaks for request signing)
• Fix #164 - Webdriver internal state breaks when navigating to a full URL
• Fix #162 - SetHostFrom doesn't set 'Host' header correctly (missing port). H/T @elifarley

v3.35.0

• Added some regex matchers to http4k-testing-hamkrest.
• Added BearerAuth authentication Server and Client Filters - these work similarly to BasicAuth.
• Added option for defaulted() lenses to fall back to another supplied lens in the case of missing value. Thanks to @dmcg for the inspiration. :)

v3.34.3

• Fix #160 - JavaHttpClient does not copy body stream correctly onto URL connection.

v3.34.2

• Fix #159 - Contracts should not have Security applied to the description route by default.

v3.34.1

• Fix #158 - Static and contract routes filters are applied in the wrong order.

v3.34.0

• Add default SamplingDecision param to ZipkinTraces - defaults to always sample.
• Fix #150 - StaticRoutingHandler filters being called twice.
• Fix #151 - POTENTIAL BREAK: Rework of Status objects to fix equality against the Status constant vals when a description has been overridden. This involves the following potential breaking change: The Status class is no longer a data class to tighten up encapsulation - user calls to copy() will have to be replaced.

v3.33.2

• Raise SO_BACKLOG in Apache and Netty server implementations.
• Add PERMANENT_REDIRECT and UNPROCESSABLE_ENTITY Status object.

v3.33.1

• No change from 3.33.0. Previous version couldn't be made available to maven central.

v3.33.0

• Add convenient way to extract from as a Map from http message. H/T to @dmcg (this version is available in jcenter only)

v3.32.1

• Fix #142 - Pebble templates don't load from JAR files.

v3.32.0

• Add support for propagation of the Zipkin x-b3-sampled header

v3.31.0

• Changes to the Netty factory to enable running http4k on GraalVM. H/T @RichyHBM

v3.30.0

• Allow all server implementations to start on port 0 (ie. find a free port) and then report it back as a part of the Http4kServer interface

v3.29.0

• Make HTTP clients resilient to unknown host and connection refused exceptions
• Implemented #134 - Added default (de)serialization for common JDK primitives to all Auto-marshalling JSON modules - eg. date times and UUIDs

v3.28.0

• Fix #131 - Uri's created with paths that don't contain leading slashes.
• Added etag parser filter. H/T @dgliosca for the PR
• Fix #132 - Ensured that disableDefaultTyping is called in default Jackson implementation. This should be the default anyway, but has been added to ensure that we don't fall foul of CVE-2017-7525 and to surface awareness of this issue.

v3.27.0

• OpenAPI now provides example values in the generated schema. H/T @skewwhiffy for the PR.

v3.26.6

• Fix #126 - ResourceLoadingHandler can expose mapped resources into the root. <-- We think this is an important update, so please upgrade!

v3.26.5

• Fix #125 - ApacheServer implementation now sets content length if present.

v3.26.4

• Fix #123 - Multipart Body objects blow up when parsed after being debugged. As with all streams, care should be taken to not blow heap when internalising them for debugging purposes.

v3.26.3

• Debugging filter now supports ignoring Multipart streams.

v3.26.2

• Tweak: OpenAPI now doesn't return null values in the schema.

v3.26.1

• Fix #124 - headers in WebSocket upgrade request are incorrectly joined.

v3.26.0

• Removed supportedContentTypes field from OpenApi contract JSON, since this is a legacy field.

v3.25.0

• Added option to Undertow to enable HTTP2 from main ServerConfig

v3.24.0

• Upgrade various dependencies for Java 10 compatibility. H/T @tom
• Fix bug with repeated params in Websocket upgrade request. H/T @tom

v3.23.1

• Composite LensFailures now capture (at least) the first failing cause (probably the body parameter in the case of an http4k-contract module.

v3.23.0

• Fix #116 - Can provide a custom Response creation method for CatchLensFailure. H/T @elifarley for the inspiration!

v3.22.4

• Added singleton method for Json.array, since if you pass in a single JsonNode (Jackson), it accidentally iterates over the fields in the node instead of using the object as an entry in the array.
• Fix #115 - Only add content-length for methods that allow content in AwsAuth filter

v3.22.3

• Preserve routing information on request/response manipulation

v3.22.2

• http4k-security-oauth module added - with support for OAuth2 Authorization Grant flow
• Replaced classes reliant on javax.activation package, which allows Java 9+ to not require any external dependencies. \o/
• Fix #112 - ApacheClient incorrectly sets headers on GET requests (this breaks F5 load balancers). H/T @simojenki
• PR #110 - Websocket client timeouts are incorrectly translated as seconds instead of millis. HT @anorth
• Core JavaHttpClient does not support streaming due to limitations with HttpURLConnection

v3.21.1

• Fix #109 - Jackson treats integer values inconsistently, leading to matching errors when using hamkrest.

v3.21.0

• Fix #107 - Killed the x-uri-template header and fixed the ReportHttpTransaction to have access to the routingGroup.
• Altered ordering of filters in http4k-contract so that the route is identified before pre-filters and security are applied. This allows knowledge of the path to be accessible at the time of application of those filters.

v3.20.0

• Introduce JavaHttpClient to http4k-core. It provides a very basic http client without any other 3rd party dependencies.

v3.19.0

• PR #104 - Add optional time/date formatters to LensSpecs so you can choose you serialisation format. H/T @elifarley
• Fix #105 - Swagger API json file: duplicate key in "definitions".

v3.18.1

• Fixed PR #100 - URI template regex required extra escaping. This only affects Android deployments as IDE shows the regex escaping is redundant. H/T @privatwolke

v3.18.0

• Breaking: converted contract pre-security filter to be a post-security filter. This means that all standard filters are applied before the security later, which allows for logging and monitoring and context setup. The previous filter mechanic applied security first, which didn't allow for this. In the unlikely event that post-security filters still need to be applied, use the withPostSecurityFilter() function when building the contract.
• Docs for contract RouteMeta function parameters, and deprecated some unused functions (missed when we introduced the DSL).
• PR #99 - Contract routes now support up to 10 path segments. Thanks to @scap1784 for the PR! :)

v3.17.1

• Fix #97. Moshi does not fail when deserialise non-nullable fields correctly. Note that GSON still suffers from this problem

v3.17.0

• Added a pre-security filter option to contract creation, so that you can explicitly specify behaviour to occur before security kicks in.

v3.16.0

• Convert Security (from sealed class) and ApiKey to be interfaces. This allows users to implement their own security models.

v3.15.0

• Introduce HttpTransaction and new ReportHttpTransaction filter provide better generic API for reporting, along with the ability to label transactions for this purpose.
• Breaking: Rework the metrics request counter and timer Filter API. There is now a HttpTransactionLabeller for you to add as many labels as required to the transaction. Each of these labels will be used to tag the metric.

v3.14.1

• Fix #95 - Filters are now applied to "route not found" responses

v3.14.0

• Fix #93 - Apache server doesn't like content-length or transfer-encoding headers present in http4k response.
• Add ability to "name" input and output contract body definitions in an OpenAPI JSON doc. This applies to only the top level entity. If no override is passed, the objects are named according to their hashcode.

3.13.4

• Fix #92 - cookie date should always use US locale

v3.13.3

• Further tweak to Netty. H/T @FredDeschenes

v3.13.2

• Fix #91 - large message handli ng in Netty

v3.13.1

• Upgrade to Kotlin 1.2.20

v3.13.0

• Support for operationId in OpenApi route metadata. H/T @danschultz for the PR.
• Removed previously deprecated methods.

v3.12.0

• New client module http4k-client-jetty, which supports both sync and async models.

v3.11.1

• Fix #84. OPTIONS requests are not detected by contract routes.
• Added option to NOT authorise OPTIONS requests in ApiKey security filter.
• Added support for Async HTTP clients and added new AsyncHttpClient interface, which is obviously used for HTTP clients only**, and not server-side calls. :)
• New client module http4k-client-apache-async.
• New metrics gathering module http4k-metrics-micrometer. Big H/T to @kirderf for the PR.
• Added support for async to OkHttp client module.

v3.10.0

• P/R 81 - adding headers and timeout to websocket client.

v3.9.0

• Added compactify and prettify to Json implementations
• Added Json.hasBody Hamkrest matchers for comparing bodies. Note these are extension methods and need to be referenced/imported as such.

v3.8.0

• Added facility for non-blocking websocket client to react to onConnect event. This API is the same as the inbound, server-side API - ie. there are no explicit connection event handlers. H/T @tom for the idea.

v3.7.0

• P/R #13 Create extension methods for Response to add caching headers. H/T @k0zakinio.

v3.6.1

• Fix #78. Serialisation of raw lists using Moshi fails in the same way as the Jackson auto-conversions do. Added convenience methods to get around this.

v3.6.0

• Added http4k-format-moshi to support the Square auto-marshalling library.

v3.5.1

• Fix #76 - encoding of path segments to use URI encoding instead of URL form encoding.

v3.5.0

• Added support for multiple HotReload template directories in HandlebarsTemplates. H/T @TomShacham
• Fix #74 - Request tracing span/parentSpan set too early so was shared between outgoing requests.

v3.4.0

• New server backend http4k-server-apache. H/T @kirderf for the PR :)
• We now set the length of the incoming request body when it is available in the incoming request.

v3.3.1

• Handlebars now uses combination of Class and Template name to cache templates.

v3.3.0

• Facility to compose TemplateRenderers with then() to provide fallback behaviour.

v3.2.3

• PR #70: Header order equality for Request/Response - H/T @gypsydave5.

v3.2.2

• Switched out Status for WsStatus (with proper RFC code set) in Websockets.

v3.2.1

• Typesafe Websockets! Jetty now supports websockets, using the same style of API in the main http4k routing.
• (Possible) Breaking change: Because WsHandler (typealias) implements the same inbound interface as HttpHandler, you now cannot declare HttpHandlers without specifying the input type, so any "anonymous" handlers will not compile as a result. The required fix is very simple, but manual: `{ Response(OK) } should become { _:Request -> Response(OK) }

v3.1.3

• Fix Request.form() for streaming requests

v3.1.2

• Remove possibility of empty message for Path Lens failure.

v3.1.1

• New (better!) API for http4k-contract module. Old meta DSL has been deprecated.

v3.0.1

• Fix #63 - Apache Client Connect. timeout exception handling.

v3.0.0

• Added http4k-serverless-lambda module, allowing http4k applications to be deployed into AWS Lambda and then called from API Gateway. Effectively, the combination of these two services become just another Server back-end supported by the library. \o/

v2.38.1

• RequestContextKey now follow the standardised Lens structure of required, optional, defaulted, and can now be removed (set to null). Replace calls to RequestContextKey.of() with RequestContextKey.required()
• Removed previously deprecated values. See below for details on replacements.

v2.37.0

• Added http4k-resilience4j module, which adds Circuits, RateLimiters, Retrying and Bulkheading.
• Fix #60 (H/T @michaelhixson for the spot).

v2.36.0

• Added a couple of useful ServerFilters.
• Upgrade various dependency versions.
• Tidying of Multipart code.

v2.35.1

• Fix #57. Static handlers behave oddly when combined with an HTTP verb in the routing tree.

v2.35.0

• Fix #56. Altered behaviour of CatchLensFailure to NOT catch errors from unmarshalling Response objects. This was causing BAD_REQUEST to be incorrectly generated.
• Simplification of generics around LensSpecs. This should not be a breaking change, (there were 3 generics, now the MID has been removed so there are just 2) but could break if signatures are used explicitly.

v2.34.0

• Reordered generics in LensInjector to make sense. This should have no effect on most code-bases, but could break if signatures are used explicitly. Just flip the generic types to switch.

v2.33.1

• Added support for unsigned AWS requests, which enables streaming content to S3.

v2.33.0

• Added BodyMode.Request to configure streaming for clients.
• ResponseBodyMode is now BodyMode.Response (Breaking change. Fixable with simple find/replace).

v2.32.0

• Added ServerFilter.ProcessFiles filter to stream Multipart Files, convert them into references and replace inline in the Form.

v2.31.4

• Avoid realising StreamBody unless necessary, which could break common usages of streaming.

v2.31.3

• Tweaks to Server backends to improve efficiency.

v2.31.2

• Webdriver will keep only the final URI after redirects.

v2.31.1

• Increased granularity of Replay.DiskStream and ensure that traffic is returned in exact order on all OSes.
• Add support for redirects to Webdriver.

v2.31.0

• Multipart module tweaked to provide a more consistent API.
• Fix FollowRedirects for POST/PUT request.

v2.30.0

• Multipart form support through new module http4k-multipart.
• Deprecation: Replaced Swagger with OpenApi and deprecated the former (via typealias).
• Deprecation: Replaced FormValidator with Validator and deprecated the former (via typealias).

v2.29.4

• Refactor release.

v2.29.3

• Fix #50 - Webdriver does not normalise relative links correctly.

v2.29.2

• Http client modules now catch and convert Socket Timeout exceptions to HTTP 504s (with a custom message)

v2.29.1

• Tweaks to how recorded traffic is stored on disk. Thanks to @dkandalov for the PR around this.

v2.29.0

• Added TrafficFilters for recording and replaying HTTP traffic. See org.http4k.traffic package for details.

v2.28.0

• Added http4k-template-dust for Dust template engine support. Thanks to @npryce for the PR to add this.

v2.27.2

• Fix #44 - Use quotes around cookie values

v2.27.1

• Raise proper Exception (instead of LensFailure) when RequestContexts are not set up correctly, so we don't accidentally classify developer errors as BadRequests

v2.27.0

• Added facility to assign values into a RequestContext which is passed down the Filter chain.

v2.26.3

• Fix #44 - Request cookies should not be wrapped in quotes.

v2.26.2

• Fix #43 - AWS does not sign binary requests correctly.

v2.26.1

• Fix #41 - Sending binary body alters the size of the payload.

v2.26.0

• Added "catch all" routing option, which matches all methods to a handler.

v2.25.4

• Fix #40 - GZip filters now use content-encoding headers instead of transfer-encoding.

v2.25.3

• Fix #39 - ResponseBodyMode.Memory properly closes streams (breaks jetty + gzip).

v2.25.2

• Ensure that streams are closed properly when consuming from an upstream client.

v2.25.1

• Remove Apache client request streaming because it may not release connections properly.

v2.25.0

• Add streaming support to HTTP Server and Client modules.
• Remove CatchLensFailure ClientFilter as it will never be used.

v2.24.0

• Added CatchLensFailure for ClientFilters - which catches un-deserializable invalid responses from clients and generates a BAD_GATEWAY error.

v2.23.4

• Switch XML generation to Gson over Jackson because Jackson doesn't handle uppercase field names well.
• Switch native XML parsed type to Document over Node.

v2.23.3

• New algorithm for XML data class deserialisation, so un-deprecated XML methods.

v2.23.2

• Deprecated methods in XML support due to limitation with underlying Jackson implementation.

v2.23.1

• Fixed bug with GenerateXmlDataClasses filter

v2.23.0

• Renamed http4k-format-jackson-xml module to http4k-format-xml.
• Improved XML unmarshalling support.

v2.22.1

• Fixed 36: Form entry is too strict with content encoding.

v2.22.0

• Added http4k-format-jackson-xml module, with XML parsing support.
• Upgrade several dependencies

v2.21.2

• Fixed Hamkrest matchers to be on HttpMessage and not Http Request.

v2.21.1

• Default body Content Negotiation strategy changed to None

v2.21.0

• Converted Content-Negotiation strategy from an Enum to an interface, so that users can define their own strategies. We also now check encoding so there are 4-built in strategies to choose from: Strict, StrictNoDirective, NonStrict and None.

v2.20.1

• Fixed #31 - Matching of segments in URIs is done after URLs are decoded, which results in not capturing encoded slashes in the path segments.

v2.20.0

• Fixed #30 - CachingClasspath template ResourceLoader not working with non-root packages.

v2.19.0

• Fixed #29 - webdriver submission of text area.
• Http clients now use a new instance of the default for each instantiation. Previously there was a shared instance.
• Add regex body type for parsing values out of bodies, and "None" option for content negotiation.

v2.18.3

• Fix AWS request signing for requests containing empty path

v2.18.2

• Fix AWS request signing for requests containing path with special characters

v2.18.1

• Added support for newRequest() in new RouteBinder mechanic.

v2.18.0

• Add support for unlimited nesting for routes() blocks. Removed the raw Route object, which can be replaced with Router or RoutingHttpHandler where appropriate.
• As part of above, rejigged route setup logic. Deprecated old routing structure, so now "/path" to GET bind is "/path" bind GET to. To fix deprecation, simply switch the calls to "to" and "bind" in routing setup.
• Rename of bind() in http4k-contract to be bindContract()

v2.17.2

• Added missing eclectic HTTP method. :)

v2.17.1

• Added GZip filters to http4k-core to zip request and response bodies.

v2.16.1

• Improved messages for http4k-testing-hamkrest matchers.

v2.16.0

• Added http4k-testing-hamkrest which contains a set of Hamkrest matchers for Http4k objects.

v2.15.0

• More features for http4k-testing-webdriver. Cookie support added.

v2.14.0

• More features for http4k-testing-webdriver. We now support Form entry and submission.

v2.13.0

• More features for http4k-testing-webdriver.

v2.12.0

• Added http4k-testing-webdriver module, an ultralight Selenium WebDriver for http4k apps

v2.11.3

• Fix #26 - GenerateDataClasses does not recurse into nested object trees

v2.11.2

• Fix filter application on GroupRoutingHttpHandler to apply the filter when it is applied with then(RoutingHttpHandler()

v2.11.1

• Fix static routes not defaulting to index.html when in root context

v2.11.0

• Added SunHttp server implementation (for development use only)

v2.10.1

• Fix cookie parsing when value contains '='

v2.10.0

• Add method to set form values in the request

v2.9.0

• Added PURGE HTTP method as it's used commonly by various caches.

v2.8.1

• Repackage AWS classes for consistency with rest of project

v2.7.1

• Alter AWS Auth filter creation. Now use ClientFilters.AwsAuth

v2.7.0

• Add AWS module

v2.6.0

• Newly created Zipkin traces are now populated onto incoming request in ServerFilters.

v2.5.1

• Slight tweak to GSON auto-marshalling to allow for use of raw Arrays with auto-marshalling

v2.5.0

• Add Thymeleaf templating support

v2.4.0

• Add Pebble templating support

v2.3.0

• Make Route a Router so we can nest them together.

v2.2.1

• Remove excess "charset" from headers in Undertow.

v2.2.0

• Rename by() to bind() in routing for clarity.

v2.1.2

• Fix for #24 - UriTemplate captures query parameters when the trailing path parameter is a regex.

v2.1.0

• Added GSON full-auto functions to convert arbitary objects to/from JSON.

v2.0.5

• Fix #23. Contract now supports multi-part URL params (for hardcoded parts)

v2.0.4

• Fix #22. Uri template does not parse out correct path params when URL starts with a path part.

v2.0.3

• toString() implementations to aid debugging

v2.0.1

• Readded missing default parameter for newRequest() on RouteSpec

v2.0.0

• Breaking: Inversion of routing API. GET to "/someUri" is now "/someUri" to GET for consistency across the entire API.

v1.33.1

• Reimplementation of http4k-contract API to match main routing API. Contracts are now nestable.

v1.32.2

• Fix Filters being applied twice in ContractRoutingHttpHandler

v1.32.1

• More work on http4k-contract contract API

v1.31.0

• Rework http4k-contract routing to be mounted in the same way as other RoutingHttpHandlers

v1.30.0

• Filters are now applied consistently to all Routers

v1.29.0

• Tweak to DSL for defining StaticRouters

v1.28.1

• Fix for #18: FollowRedirect will now work if location header includes charset information.

v1.28.0

• New DSL for defining StaticRouters

v1.27.0

• Merged StaticContent and StaticRouter and repackage of contract API into other packages

v1.26.2

• Extend fix for #17 to request Cookie header.

v1.26.1

• Fix for #17. Cookie can now parse a cookie without attributes and ending in semicolon.

v1.26.0

• Added nestable Routers.
• Merging of Modules and Routers. Router is the new Module! RouteModule is now ContractRouter, so rename in code will be required.

v1.25.1

• Fix for #15. OkHttp client handling of POSTs with no body.

v1.25.0

• Can add custom mime types to Static Content
• GenerateDataClasses is capable of more complex object graphs

v1.24.0

• Remove HttpHandler.asServer in favour of HttpHandler.startServer to avoid confusion.
• Introduce Status.description().

v1.23.0

• Netty sets content-length header.

v1.22.2

• Fix for #12. Undertow not constructing response correctly.

v1.22.0

• New module with Undertow.io support http4k-server-undertow
• Jackson implementation now ignores unknown properties in incoming messages
• Netty implementation tidied up

v1.21.1

• Fix for #11. Netty implementation returns incorrect status codes.

v1.21.0

• Add synonym methods for Lenses to aid readability. We now have invoke(IN)/extract(IN) and `invoke(IN, TARGET)/inject(IN, TARGET)

v1.20.0

• http4k-contracts: Add option to change the route of the module description route

v1.19.1

• http4k-contracts: Fix for contract module description routes not being authenticated via security filter

v1.19.0

• http4k-contracts: Add Swagger module rendering with JSON schema models for messages.

v1.18.0

• Add nonEmptyString() lens type to all request parts.

v1.17.0

• General rework

v1.16.0

• Further work on Path Lenses. They are now fully supported and consistent for both simple and contract routing scenarios.

v1.15.0

• Path lenses are now bidirectional, so can be used to populate requests as well as bodies an headers etc.
• Routes can now create shell Requests for themselves, using route.newRequest()

v1.14.0

• Body is now non-nullable (use Body.EMPTY instead)
• Rename methods BodyLens API for consistency and clarity. required() is now toLens(). to()' binding method is now of().

v1.13.0

• New client module: http4k-client-okhttp

v1.12.0

• Tidying

v1.11.0

• Added option for Body content-negotiation to be strict or non-strict (the default). Always be strict in what you send, relaxed in what you will accept. :)

v1.10.0

• Moved Credentials to org.http4k.core package.
• Add various filters, including SetHostFrom and CatchAll.

v1.9.0

• Added GenerateDataClasses so you can generate Kotlin data classes from JSON messages.

v1.8.0

• Added CORs support

v1.7.0

• Added auto() to Jackson, so you can auto convert body objects into and out of Requests/Responses

v1.6.0

• Added CachingFilters

v1.5.0

• Removed static factory methods for Request/Response. They were confusing/incomplete and users can easily recreate them via extension functions.
• Merge org.http4k.core.Body and org.http4k.lens.Body.
• Add Request/Response message parsers.

v1.4.0

• Turn Body into ByteBuffer wrapper rather than typealias. That should make .toString() behave as most people would expected.

v1.3.0

• Removed non-mandatory parameters from Request and Response constructors. This is aid API clarity. and force users to use the API methods for properly constructing the objects.
• Regex Lens added.

v1.0.0

• Initial major release.