The goal of Swagger™ is to define a standard, language-agnostic interface to REST APIs which allows both humans and computers to discover and understand the capabilities of the service without access to source code, documentation, or through network traffic inspection. When properly defined via Swagger, a consumer can understand and interact with the remote service with a minimal amount of implementation logic. Similar to what interfaces have done for lower-level programming, Swagger removes the guesswork in calling the service.

Swagger-core is the Java implementation of Swagger. Current version supports JAX-RS2.

Check out the OpenAPI Specification for additional information about the Swagger project.

The following methods are available to obtain support for Swagger:

• The Swagger Google Group - This would normally be your first stop to get support for Swagger. Here you can find previously asked question, and ask new ones. When asking a question, please provide as much information as you can regarding the environment you use (development language, library, versions.
• The Issues tab - Please open feature requests and bugs here. If you're not sure you encountered a bug, or if it's a general usage question, please use the Google Group mentioned above.
• IRC! you can find us on freenode in the channel #Swagger. You can talk with us directly there.

The OpenAPI Specification has undergone several revisions since initial creation in 2010. The swagger-core project has the following compatibilities with the OpenAPI Specification:

This is a project to build the swagger-core library, which is required for the Swagger implementation of the OpenAPI Spec.

If you're interested in the change history of swagger and the swagger-core framework, see here.

You need the following installed and available in your $PATH:

• Java 8 (http://java.oracle.com)
• Apache maven 3.0.4 or greater (http://maven.apache.org/)
• Jackson 2.4.5 or greater

# first time building locally
mvn -N

Subsequent builds:

mvn install

This will build the modules.

Of course if you don't want to build locally you can grab artifacts from maven central:

http://repo1.maven.org/maven2/io/swagger/

The samples have moved to a new repository and contain various integrations and configurations.

Copyright 2016 SmartBear Software

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at [apache.org/licenses/LICENSE-2.0](http://www.apache.org/licenses/LICENSE-2.0)

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

• See also rc1 release notes
• Second official release candidate of OpenAPI 3.0 support. swagger-core now produces OpenAPI 3.0 specs only. swagger-core 2.0 version is not backward compatible with previous 1.x versions.
• Available on Maven central, and the sources are in the 2.0 branch. PRs should be submitted against the 2.0 branch.
• Example/Examples support (#2416)
• New 2.0 Wiki
• Enhanced security support (#2450)
• Enhanced request body support (#2401)
• Response header support (#2427)
• Enhanced support for Parameter, Schema and Content (#2404)
• Specification Filter (#2452)
• Reader listener support (#2464)
• Encoding support (#2463)
• Consumes/Produces full support(#2404)
• Annotation javadocs (#2394)
• Full sample code for jersey2 and dropwizard
• Updated dependencies
• Various bug fixes

• Resolve resource operations also when not annotated with @Operation (swagger-jaxrs2)
• Implement subtypes field in Schema annotation, with related resolver processing (swagger-annotations / core)
• Overriding full support (swagger-core)
  • Schema annotation type + format full support (swagger-core)
• Reader sub-resources support (swagger-jaxrs2)
• Reader extensions full support (swagger-jaxrs2)
• Integration layer enhancements:config file location enhanced loading, additional loaders, etc. (swagger-integration, swagger-jaxrs)
• JsonIdentity support (swagger-core)
• MatrixParam annotation support

• First official release candidate of OpenApi 3.0 support. swagger-core now produces OpenAPI 3.0 specs only. swagger-core 2.0 version is not backward compatible with previous 1.x versions.
• Available on Maven central, and the sources are in the 2.0 branch. PRs should be submitted against the 2.0 branch.
• Swagger JAX-RS 2 support
• Java 8
• Consistent integration mechanism

• Resolve resource operations also when not annotated with @Operation (swagger-jaxrs2)
• Implement subtypes field in Schema annotation, with related resolver processing (swagger-annotations / core)
• Overriding full support (swagger-core)
  • Schema annotation type + format full support (swagger-core)
  • Schema annotation implementation field full support (swagger-core)
• Filter / Reader listener support (swagger-jaxrs2)
• Reader sub-resources support (swagger-jaxrs2)
• Reader extensions full support (swagger-jaxrs2)
• Annotations javadocs (swagger-annotations)
• Annotations default values enhancement (swagger-annotations / core)
• Integration layer enhancements:config file location enhanced loading, additional loaders, etc. (swagger-integration, swagger-jaxrs)
• Consumes/Produces full support (swagger-jaxrs2)
• JsonIdentity support (swagger-core)
• MatrixParam annotation support