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Java RESTful Client Using Netflix Feign
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‎Java-RESTful-Client-Example/README.md‎

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@@ -17,8 +17,10 @@ The **BookRepositoryImplSpring.java** includes all raw examples about creating R
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The **BookRepositoryImplApacheHttpClient.java** includes all raw examples about creating RESTful Client With Apache Httpcomponents
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The **BookRepositoryImplJersey.java** includes all raw examples about creating RESTful Client With Jersey Client library.
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The **BookRepositoryImplResteasy.java** includes all raw examples about creating RESTful Client With Resteasy Client API.
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The **BookRepositoryImplResteasyProxy.java, SimpleResteasyProxyClient.java** includes all raw examples about creating RESTful Client With Resteasy Client Proxy The **BookRepositoryImplCXFProxy.java, BookResource.java** includes all raw examples about creating Java RESTful Client Using Apache CXF Proxy-based API
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The **BookRepositoryImplResteasyProxy.java, SimpleResteasyProxyClient.java** includes all raw examples about creating RESTful Client With Resteasy Client Proxy
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The **BookRepositoryImplCXFProxy.java, BookResource.java** includes all raw examples about creating Java RESTful Client Using Apache CXF Proxy-based API
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Framework.
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The **BookResourceFeign.java, BookRepositoryImplFeign.java** includes all raw examples about creating Java RESTful Client Using Netflix Feign
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Source code are described:
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###[Simple Java RESTful Web Service Clients](http://howtoprogram.xyz/2016/07/02/java-restful-web-service-clients/)
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###[Java RESTful Client With Apache Httpcomponents](http://howtoprogram.xyz/2016/07/04/java-restful-client-spring-apache-httpcomponents/)
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###[Java RESTful Client With Jersey Client](http://howtoprogram.xyz/2016/07/05/java-restful-client-jersey-client/)
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###[Java RESTful Client With Resteasy Client](http://howtoprogram.xyz/2016/07/12/java-restful-client-resteasy-client/)
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###[Java RESTful Client Using Apache CXF Proxy-based API](howtoprogram.xyz/2016/07/15/java-restful-client-using-apache-cxf-proxy-based-api/)
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###[Java RESTful Client Using Apache CXF Proxy-based API](howtoprogram.xyz/2016/07/15/java-restful-client-using-apache-cxf-proxy-based-api/)
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###[Java RESTful Client Using Netflix Feign](http://howtoprogram.xyz/2016/07/18/java-restful-client-using-netflix-feign/)

‎Java-RESTful-Client-Example/pom.xml‎

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</dependency>
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<!-- End Apache CXF dependencies -->
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<!-- Begin Netflix Feign dependencies -->
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<dependency>
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<groupId>com.netflix.feign</groupId>
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<artifactId>feign-core</artifactId>
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<version>8.18.0</version>
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</dependency>
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<dependency>
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<groupId>com.netflix.feign</groupId>
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<artifactId>feign-jackson</artifactId>
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<version>8.18.0</version>
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</dependency>
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<!-- End Netflix Feign dependencies -->
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</dependencies>
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</project>

‎Java-RESTful-Client-Example/src/main/java/com/howtoprogram/repository/feign/BookRepositoryImplFeign.java‎

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package com.howtoprogram.repository.feign;
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import java.util.List;
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import com.howtoprogram.domain.Book;
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import feign.Feign;
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import feign.jackson.JacksonDecoder;
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import feign.jackson.JacksonEncoder;
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public class BookRepositoryImplFeign {
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private static final String URI_BOOK = "http://localhost:8080";
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public Book updateBook(Book book) throws Exception {
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BookResourceFeign bookResource = Feign.builder().encoder(new JacksonEncoder())
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.decoder(new JacksonDecoder()).target(BookResourceFeign.class, URI_BOOK);
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Book updatedBook = bookResource.updateBook(book.getId(), book);
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return updatedBook;
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}
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public Book createBook(Book book) throws Exception {
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BookResourceFeign bookResource = Feign.builder().encoder(new JacksonEncoder())
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.decoder(new JacksonDecoder()).target(BookResourceFeign.class, URI_BOOK);
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Book createdBook = bookResource.createBook(book);
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return createdBook;
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}
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public List<Book> getAllBooks() throws Exception {
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BookResourceFeign bookResource = Feign.builder().encoder(new JacksonEncoder())
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.decoder(new JacksonDecoder()).target(BookResourceFeign.class, URI_BOOK);
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return bookResource.getAllBooks();
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}
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public static void main(String[] args) throws Exception {
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BookRepositoryImplFeign bookRepository = new BookRepositoryImplFeign();
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Book book = bookRepository.getAllBooks().get(0);
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bookRepository.deleteBook(book.getId());
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}
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public void deleteBook(Long id) {
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BookResourceFeign bookResource = Feign.builder().encoder(new JacksonEncoder())
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.decoder(new JacksonDecoder()).target(BookResourceFeign.class, URI_BOOK);
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bookResource.deleteBook(id);
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}
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public Book findBookById(Long id) {
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return null;
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}
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}

‎Java-RESTful-Client-Example/src/main/java/com/howtoprogram/repository/feign/BookResourceFeign.java‎

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package com.howtoprogram.repository.feign;
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import java.util.List;
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import com.howtoprogram.domain.Book;
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import feign.Headers;
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import feign.Param;
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import feign.RequestLine;
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@Headers("Accept: application/json")
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public interface BookResourceFeign {
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@RequestLine("GET /v1/books")
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List<Book> getAllBooks();
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@Headers("Content-Type: application/json")
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@RequestLine("POST /v1/books")
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Book createBook(Book book);
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@Headers("Content-Type: application/json")
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@RequestLine("PUT /v1/books/{id}")
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Book updateBook(@Param("id") Long id, Book book);
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@RequestLine("DELETE /v1/books/{id}")
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void deleteBook(@Param("id") Long id);
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}

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