Configure feign client URL
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neha298
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package com.baeldung.cloud.openfeign.client;
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import com.baeldung.cloud.openfeign.model.Album;
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import org.springframework.cloud.openfeign.FeignClient;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.PathVariable;
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@FeignClient(name = "albumClient", url = "https://jsonplaceholder.typicode.com/albums/")
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public interface AlbumClient {
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@GetMapping(value = "/{id}")
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Album getAlbumById(@PathVariable(value = "id") Integer id);
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@GetMapping(value = "/{id}")
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Album getAlbumByIdAndDynamicUrl(@PathVariable(name = "id") Integer id);
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}
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package com.baeldung.cloud.openfeign.client;
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import com.baeldung.cloud.openfeign.model.Post;
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import org.springframework.cloud.openfeign.FeignClient;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.PathVariable;
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@FeignClient(name = "postClient", url = "${spring.cloud.openfeign.client.config.postClient.url}")
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public interface PostClient {
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@GetMapping(value = "/{id}")
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Post getPostById(@PathVariable(value = "id") Integer id);
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}
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package com.baeldung.cloud.openfeign.client;
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import com.baeldung.cloud.openfeign.model.Todo;
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import feign.RequestLine;
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import org.springframework.cloud.openfeign.FeignClient;
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import java.net.URI;
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@FeignClient(name = "todoClient")
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public interface TodoClient {
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@RequestLine(value = "GET")
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Todo getTodoById(URI uri);
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}
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package com.baeldung.cloud.openfeign.config;
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import feign.RequestInterceptor;
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import feign.RequestTemplate;
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import java.util.function.Supplier;
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public class DynamicUrlInterceptor implements RequestInterceptor {
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private final Supplier<String> urlSupplier;
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public DynamicUrlInterceptor(Supplier<String> urlSupplier) {
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this.urlSupplier = urlSupplier;
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}
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@Override
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public void apply(RequestTemplate template) {
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String url = urlSupplier.get();
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if (url != null) {
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template.target(url);
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}
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}
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}
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package com.baeldung.cloud.openfeign.controller;
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import com.baeldung.cloud.openfeign.config.DynamicUrlInterceptor;
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import com.baeldung.cloud.openfeign.client.AlbumClient;
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import com.baeldung.cloud.openfeign.client.PostClient;
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import com.baeldung.cloud.openfeign.client.TodoClient;
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import com.baeldung.cloud.openfeign.model.Album;
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import com.baeldung.cloud.openfeign.model.Post;
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import com.baeldung.cloud.openfeign.model.Todo;
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import feign.Feign;
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import feign.Target;
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import feign.codec.Decoder;
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import feign.codec.Encoder;
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import org.springframework.beans.factory.ObjectFactory;
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import org.springframework.beans.factory.ObjectProvider;
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import org.springframework.boot.autoconfigure.http.HttpMessageConverters;
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import org.springframework.cloud.openfeign.FeignClientsConfiguration;
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import org.springframework.cloud.openfeign.support.HttpMessageConverterCustomizer;
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import org.springframework.cloud.openfeign.support.SpringDecoder;
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import org.springframework.cloud.openfeign.support.SpringEncoder;
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import org.springframework.cloud.openfeign.support.SpringMvcContract;
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import org.springframework.context.annotation.Import;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.PathVariable;
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import org.springframework.web.bind.annotation.RestController;
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import java.net.URI;
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@RestController
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@Import(FeignClientsConfiguration.class)
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public class ConfigureFeignUrlController {
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private final AlbumClient albumClient;
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private final PostClient postClient;
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private final TodoClient todoClient;
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private final ObjectFactory<HttpMessageConverters> messageConverters;
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private final ObjectProvider<HttpMessageConverterCustomizer> customizers;
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public ConfigureFeignUrlController(AlbumClient albumClient,
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PostClient postClient,
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Decoder decoder,
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Encoder encoder,
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ObjectFactory<HttpMessageConverters> messageConverters, ObjectProvider<HttpMessageConverterCustomizer> customizers) {
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this.albumClient = albumClient;
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this.postClient = postClient;
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this.messageConverters = messageConverters;
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this.customizers = customizers;
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this.todoClient = Feign.builder().encoder(encoder).decoder(decoder).target(Target.EmptyTarget.create(TodoClient.class));
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}
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@GetMapping(value = "albums/{id}")
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public Album getAlbumById(@PathVariable(value = "id") Integer id) {
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return albumClient.getAlbumById(id);
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}
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@GetMapping(value = "posts/{id}")
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public Post getPostById(@PathVariable(value = "id") Integer id) {
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return postClient.getPostById(id);
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}
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@GetMapping(value = "todos/{id}")
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public Todo getTodoById(@PathVariable(value = "id") Integer id) {
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return todoClient.getTodoById(URI.create("https://jsonplaceholder.typicode.com/todos/" + id));
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}
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@GetMapping(value = "/dynamicAlbums/{id}")
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public Album getAlbumByIdAndDynamicUrl(@PathVariable(value = "id") Integer id) {
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AlbumClient client = Feign.builder()
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.requestInterceptor(new DynamicUrlInterceptor(() -> "https://jsonplaceholder.typicode.com/albums/"))
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.contract(new SpringMvcContract())
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.encoder(new SpringEncoder(messageConverters))
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.decoder(new SpringDecoder(messageConverters, customizers))
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.target(Target.EmptyTarget.create(AlbumClient.class));
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return client.getAlbumByIdAndDynamicUrl(id);
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}
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}
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package com.baeldung.cloud.openfeign.model;
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public class Album {
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private Integer id;
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private Integer userId;
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private String title;
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public Integer getId() {
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return id;
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}
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public void setId(Integer id) {
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this.id = id;
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}
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public Integer getUserId() {
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return userId;
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}
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public void setUserId(Integer userId) {
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this.userId = userId;
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}
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public String getTitle() {
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return title;
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}
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public void setTitle(String title) {
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this.title = title;
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}
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}
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package com.baeldung.cloud.openfeign.model;
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public class Todo {
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private Integer id;
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private Integer userId;
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private String title;
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private Boolean completed;
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public Integer getId() {
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return id;
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}
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public void setId(Integer id) {
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this.id = id;
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}
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public Integer getUserId() {
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return userId;
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}
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public void setUserId(Integer userId) {
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this.userId = userId;
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}
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public String getTitle() {
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return title;
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}
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public void setTitle(String title) {
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this.title = title;
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}
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public Boolean getCompleted() {
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return completed;
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}
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public void setCompleted(Boolean completed) {
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this.completed = completed;
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}
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}
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@ -8,3 +8,5 @@ spring.security.oauth2.client.registration.keycloak.authorization-grant-type=cli
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spring.security.oauth2.client.registration.keycloak.client-id=payment-app
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spring.security.oauth2.client.registration.keycloak.client-secret=863e9de4-33d4-4471-b35e-f8d2434385bb
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spring.security.oauth2.client.provider.keycloak.token-uri=http://localhost:8083/auth/realms/master/protocol/openid-connect/token
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spring.cloud.openfeign.client.config.postClient.url=https://jsonplaceholder.typicode.com/posts/
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