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CHANGELOG.md

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Version 9.5.1

  • When specified, Content-Type header is now included on OkHttp requests lacking a body.
  • Sets empty HttpEntity if apache request body is null.

Version 9.5

  • Introduces feign-java8 with support for java.util.Optional
  • Adds Feign.Builder.mapAndDecode() to allow response preprocessing before decoding it.

Version 9.4.1

  • 404 responses are no longer swallowed for void return types.

Version 9.4

  • Adds Builder class to JAXBDecoder for disabling namespace-awareness (defaults to true).

Version 9.3

  • Adds FallbackFactory, allowing access to the cause of a Hystrix fallback
  • Adds support for encoded parameters via @Param(encoded = true)

Version 9.2

  • Adds Hystrix SetterFactory to customize group and command keys
  • Supports context path when using Ribbon LoadBalancingTarget
  • Adds builder methods for the Response object
  • Deprecates Response factory methods
  • Adds nullable Request field to the Response object

Version 9.1

  • Allows query parameters to match on a substring. Ex q=body:{body}

Version 9.0

  • Migrates to maven from gradle
  • Changes maven groupId to io.github.openfeign

Version 8.18

  • Adds support for expansion of @Param lists
  • Content-Length response bodies with lengths greater than Integer.MAX_VALUE report null length
    • Previously the OkhttpClient would throw an exception, and ApacheHttpClient would report a wrong, possibly negative value
  • Adds support for encoded query parameters in @QueryMap via @QueryMap(encoded = true)
  • Keys in Response.headers are now lower-cased. This map is now case-insensitive with regards to keys, and iterates in lexicographic order.
    • This is a step towards supporting http2, as header names in http1 are treated as case-insensitive and http2 down-cases header names.

Version 8.17

  • Adds support to RxJava Completable via HystrixFeign builder with fallback support
  • Upgraded hystrix-core to 1.4.26
  • Upgrades dependency version for OkHttp/MockWebServer 3.2.0

Version 8.16

  • Adds @HeaderMap annotation to support dynamic header fields and values
  • Add support for default and static methods on interfaces

Version 8.15

  • Adds @QueryMap annotation to support dynamic query parameters
  • Supports runtime injection of Param.Expander via MethodMetadata.indexToExpander
  • Adds fallback support for HystrixCommand, Observable, and Single results
  • Supports PUT without a body parameter
  • Supports substitutions in @Headers like in @Body. (#326)
    • Note: You might need to URL-encode literal values of { or % in your existing code.

Version 8.14

  • Add support for RxJava Observable and Single return types via the HystrixFeign builder.
  • Adds fallback implementation configuration to the HystrixFeign builder
  • Bumps dependency versions, most notably Gson 2.5 and OkHttp 2.7

Version 8.13

  • Never expands >8kb responses into memory

Version 8.12

  • Adds Feign.Builder.decode404() to reduce boilerplate for empty semantics.

Version 8.11

  • Adds support for Hystrix via a HystrixFeign builder.

Version 8.10

  • Adds HTTP status to FeignException for easier response handling
  • Reads class-level @Produces/@Consumes JAX-RS annotations
  • Supports POST without a body parameter

Version 8.9

  • Skips error handling when return type is Response

Version 8.8

  • Adds jackson-jaxb codec
  • Bumps dependency versions for integrations
  • OkHttp/MockWebServer 2.5.0
  • Jackson 2.6.1
  • Apache Http Client 4.5
  • JMH 1.10.5

Version 8.7

  • Bumps dependency versions for integrations
  • OkHttp/MockWebServer 2.4.0
  • Gson 2.3.1
  • Jackson 2.6.0
  • Ribbon 2.1.0
  • SLF4J 1.7.12

Version 8.6

  • Adds base api support via single-inheritance interfaces

Version 7.5/8.5

  • Added possibility to leave slash encoded in path parameters

Version 8.4

  • Correct Retryer bug that prevented it from retrying requests after the first 5 retry attempts.
    • Note: If you have a custom feign.Retryer implementation you now must now implement public Retryer clone(). It is suggested that you simply return a new instance of your Retryer class.

Version 8.3

  • Adds client implementation for Apache Http Client

Version 8.2

  • Allows customized request construction by exposing Request.create()
  • Adds JMH benchmark module
  • Enforces source compatibility with animal-sniffer

Version 8.1

  • Allows @Headers to be applied to a type

Version 8.0

  • Removes Dagger 1.x Dependency
  • Removes support for parameters annotated with javax.inject.@Named. Use feign.@Param instead.
  • Makes body parameter type explicit.

Version 7.4

  • Allows @Headers to be applied to a type

Version 7.3

  • Adds Request.Options support to RibbonClient
  • Adds LBClientFactory to enable caching of Ribbon LBClients
  • Updates to Ribbon 2.0-RC13
  • Updates to Jackson 2.5.1
  • Supports query parameters without values

Version 7.2

  • Adds Feign.Builder.build()
  • Opens constructor for Gson and Jackson codecs which accepts type adapters
  • Adds EmptyTarget for interfaces who exclusively declare URI methods
  • Reformats code according to Google Java Style

Version 7.1

  • Introduces feign.@Param to annotate template parameters. Users must migrate from javax.inject.@Named to feign.@Param before updating to Feign 8.0.
    • Supports custom expansion via @Param(value = "name", expander = CustomExpander.class)
  • Adds OkHttp integration
  • Allows multiple headers with the same name.
  • Ensures Accept headers default to */*

Version 7.0

  • Expose reflective dispatch hook: InvocationHandlerFactory
  • Add JAXB integration
  • Add SLF4J integration
  • Upgrade to Dagger 1.2.2.
    • Note: Dagger-generated code prior to version 1.2.0 is incompatible with Dagger 1.2.0 and beyond. Dagger users should upgrade Dagger to at least version 1.2.0, and recompile any dependency-injected classes.

Version 6.1.3

  • Updates to Ribbon 2.0-RC5

Version 6.1.1

  • Fix for #85

Version 6.1.0

Version 6.0.1

  • Fix for BasicAuthRequestInterceptor when username and/or password are long.

Version 6.0

  • Support binary request and response bodies.
  • Don't throw http status code exceptions when return type is Response.

Version 5.4.0

  • Add BasicAuthRequestInterceptor
  • Add Jackson integration

Version 5.3.0

  • Split GsonCodec into GsonEncoder and GsonDecoder, which are easy to use with Feign.Builder
  • Deprecate GsonCodec
  • Update to Ribbon 0.2.3

Version 5.2.0

  • Support usage of GsonCodec via Feign.Builder

Version 5.1.0

  • Correctly handle IOExceptions wrapped by Ribbon.
  • Miscellaneous findbugs fixes.

Version 5.0.1

  • Decoder.decode() is no longer called for Response or void types.

Version 5.0

  • Remove support for Observable methods.
  • Use single non-generic Decoder/Encoder instead of sets of type-specific Decoders/Encoders.
  • Decoders/Encoders are now more flexible, having access to the Response/RequestTemplate respectively.
  • Moved SaxDecoder into feign-sax dependency.
    • SaxDecoder now decodes multiple types.
    • Remove pattern decoders in favor of SaxDecoder.
  • Added Feign.Builder to simplify client customizations without using Dagger.
  • Gson type adapters can be registered as Dagger set bindings.
  • Feign.create(...) now requires specifying an encoder and decoder.

Version 4.4.1

  • Fix NullPointerException on calling equals and hashCode.

Version 4.4

  • Support overriding default HostnameVerifier.
  • Support GZIP content encoding for request bodies.
  • Support Iterable args for query parameters.
  • Support urls which have query parameters.

Version 4.3

  • Add ability to configure zero or more RequestInterceptors.
  • Remove overrides = true on codec modules.

Version 4.2/3.3

  • Document and enforce JAX-RS annotation processing from server POV
  • Skip query template parameters when corresponding java arg is null

Version 4.1/3.2

  • update to dagger 1.1
  • Add wikipedia search example
  • Allow @Path on types in feign-jaxrs

Version 4.0

  • Support RxJava-style Observers.
    • Return type can be Observable<T> for an async equiv of Iterable<T>.
    • Observer<T> replaces IncrementalCallback<T> and is passed to Observable.subscribe().
    • On Subscription.unsubscribe(), Observer.onNext() will stop being called.

Version 3.1

  • Log when an http request is retried or a response fails due to an IOException.

Version 3.0

  • Added support for asynchronous callbacks via IncrementalCallback<T> and IncrementalDecoder.TextStream<T>.
  • Wire is now Logger, with configurable Logger.Level.
  • Added feign-gson codec, used via new GsonModule()
  • changed codec to be similar to WebSocket JSR 356
    • Decoder is now Decoder.TextStream<T>
    • BodyEncoder is now Encoder.Text<T>
    • FormEncoder is now Encoder.Text<Map<String, ?>>
  • Encoder and Decoders are specified via Provides.Type.SET binding.
  • Default Encoder and Form Encoder is Encoder.Text<Object>
  • Default Decoder is Decoder.TextStream<Object>
  • ErrorDecoder now returns Exception, not fallback.
  • There can only be one ErrorDecoder and Request.Options binding now.

Version 2.0.0

  • removes guava and jax-rs dependencies
  • adds JAX-RS integration

Version 1.1.0

  • adds Ribbon integration
  • adds cli example
  • exponential backoff customizable via Retryer.Default ctor

Version 1.0.0

  • Initial open source release