Examples of feign.codec.Encoder

feign.codec.Encoder

Encodes an object into an HTTP request body. Like {@code javax.websocket.Encoder}. {@code Encoder} is used when a method parameter has no {@code @Param} annotation.For example:

 @POST @Path("/") void create(User user);

Example implementation:

 public class GsonEncoder implements Encoder { private final Gson gson; public GsonEncoder(Gson gson) { this.gson = gson; } @Override public void encode(Object object, RequestTemplate template) { template.body(gson.toJson(object)); } }

Form encoding

If any parameters are found in {@link feign.MethodMetadata#formParams()}, they will be collected and passed to the Encoder as a {@code Map}.

 @POST @Path("/") Session login(@Named("username") String username, @Named("password") String password);

    MockWebServer server = new MockWebServer();
    server.enqueue(new MockResponse().setBody("response data"));
    server.play();


    String url = "http://localhost:" + server.getPort();
    Encoder encoder = new Encoder() {
      @Override
      public void encode(Object object, RequestTemplate template) throws EncodeException {
        template.body(object.toString());
      }
    };

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        JAXBContextFactory jaxbContextFactory = new JAXBContextFactory.Builder()
                .withMarshallerJAXBEncoding("UTF-16")
                .build();


        JAXBModule jaxbModule = new JAXBModule(jaxbContextFactory);
        Encoder encoder = jaxbModule.encoder(new JAXBEncoder(jaxbContextFactory));


        MockObject mock = new MockObject();
        mock.setValue("Test");


        RequestTemplate template = new RequestTemplate();
        encoder.encode(mock, template);


        assertEquals(new String(template.body(), UTF_8), "<?xml version=\"1.0\" encoding=\"UTF-16\" " +
                "standalone=\"yes\"?><mockObject><value>Test</value></mockObject>");
    }

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        JAXBContextFactory jaxbContextFactory = new JAXBContextFactory.Builder()
                .withMarshallerSchemaLocation("http://apihost http://apihost/schema.xsd")
                .build();


        JAXBModule jaxbModule = new JAXBModule(jaxbContextFactory);
        Encoder encoder = jaxbModule.encoder(new JAXBEncoder(jaxbContextFactory));


        MockObject mock = new MockObject();
        mock.setValue("Test");


        RequestTemplate template = new RequestTemplate();
        encoder.encode(mock, template);


        assertEquals(new String(template.body(), UTF_8), "<?xml version=\"1.0\" encoding=\"UTF-8\" " +
                "standalone=\"yes\"?><mockObject xsi:schemaLocation=\"http://apihost " +
                "http://apihost/schema.xsd\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\">" +
                "<value>Test</value></mockObject>");

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        JAXBContextFactory jaxbContextFactory = new JAXBContextFactory.Builder()
                .withMarshallerNoNamespaceSchemaLocation("http://apihost/schema.xsd")
                .build();


        JAXBModule jaxbModule = new JAXBModule(jaxbContextFactory);
        Encoder encoder = jaxbModule.encoder(new JAXBEncoder(jaxbContextFactory));


        MockObject mock = new MockObject();
        mock.setValue("Test");


        RequestTemplate template = new RequestTemplate();
        encoder.encode(mock, template);


        assertEquals(new String(template.body(), UTF_8), "<?xml version=\"1.0\" encoding=\"UTF-8\" " +
                "standalone=\"yes\"?><mockObject xsi:noNamespaceSchemaLocation=\"http://apihost/schema.xsd\" " +
                "xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\">" +
                "<value>Test</value></mockObject>");

View Full Code Here

        JAXBContextFactory jaxbContextFactory = new JAXBContextFactory.Builder()
                .withMarshallerFormattedOutput(true)
                .build();


        JAXBModule jaxbModule = new JAXBModule(jaxbContextFactory);
        Encoder encoder = jaxbModule.encoder(new JAXBEncoder(jaxbContextFactory));


        MockObject mock = new MockObject();
        mock.setValue("Test");


        RequestTemplate template = new RequestTemplate();
        encoder.encode(mock, template);


        String NEWLINE = System.getProperty("line.separator");


        StringBuilder expectedXml = new StringBuilder();
        expectedXml.append("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?>").append(NEWLINE)

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      @Provides Decoder defaultDecoder() {
        return new Decoder.Default();
      }


      @Provides Encoder defaultEncoder() {
        return new Encoder() {
          @Override public void encode(Object object, RequestTemplate template) {
            if (object instanceof Map) {
              template.body(Joiner.on(',').withKeyValueSeparator("=").join((Map) object));
            } else {
              template.body(object.toString());

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Related Classes of feign.codec.Encoder

feign.FeignBuilderTest

feign.FeignTest$TestInterface$Module

feign.jaxb.JAXBModuleTest

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