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JAVA-13321 New Gateway-2 module with spring-cloud-gateway article's subjects

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This commit is contained in:
Anastasios Ioannidis
2023-09-28 11:33:20 +03:00
parent f1b3f233dc
commit a06a2415db
44 changed files with 34 additions and 4179 deletions
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spring-cloud-modules/spring-cloud-bootstrap/gateway-2/README.md
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@@ -5,9 +5,3 @@ This module contains articles about Spring Cloud Gateway
### Relevant Articles: ### Relevant Articles:
- [Exploring the New Spring Cloud Gateway](http://www.baeldung.com/spring-cloud-gateway) - [Exploring the New Spring Cloud Gateway](http://www.baeldung.com/spring-cloud-gateway)
- [Writing Custom Spring Cloud Gateway Filters](https://www.baeldung.com/spring-cloud-custom-gateway-filters)
- [Spring Cloud Gateway Routing Predicate Factories](https://www.baeldung.com/spring-cloud-gateway-routing-predicate-factories)
- [Spring Cloud Gateway WebFilter Factories](https://www.baeldung.com/spring-cloud-gateway-webfilter-factories)
- [Using Spring Cloud Gateway with OAuth 2.0 Patterns](https://www.baeldung.com/spring-cloud-gateway-oauth2)
- [URL Rewriting With Spring Cloud Gateway](https://www.baeldung.com/spring-cloud-gateway-url-rewriting)
- [Processing the Response Body in Spring Cloud Gateway](https://www.baeldung.com/spring-cloud-gateway-response-body)
spring-cloud-modules/spring-cloud-bootstrap/gateway-2/baeldung-realm.json
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spring-cloud-modules/spring-cloud-bootstrap/gateway-2/pom.xml
+31 -101
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@@ -4,13 +4,14 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion> <modelVersion>4.0.0</modelVersion>
<artifactId>gateway-2</artifactId> <artifactId>gateway-2</artifactId>
<name>spring-cloud-gateway</name> <name>gateway-2</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung.spring.cloud</groupId> <groupId>com.baeldung</groupId>
<artifactId>spring-cloud-modules</artifactId> <artifactId>parent-boot-2</artifactId>
<version>1.0.0-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../../parent-boot-2</relativePath>
</parent> </parent>
<dependencyManagement> <dependencyManagement>
@@ -44,107 +45,36 @@
<groupId>org.springframework.cloud</groupId> <groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-gateway</artifactId> <artifactId>spring-cloud-starter-gateway</artifactId>
</dependency> </dependency>
<!-- Circuit Breaker -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-circuitbreaker-reactor-resilience4j</artifactId>
</dependency>
<!-- Redis -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis-reactive</artifactId>
</dependency>
<!-- Embedded Redis -->
<dependency>
<groupId>it.ozimov</groupId>
<artifactId>embedded-redis</artifactId>
<version>${redis.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator-cdi</artifactId>
<version>${hibernate-validator.version}</version>
</dependency>
<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
</dependency>
<!-- Spring security -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-oauth2-resource-server</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-oauth2-client</artifactId>
</dependency>
</dependencies> </dependencies>
<build> <!-- <build>-->
<plugins> <!-- <plugins>-->
<plugin> <!-- <plugin>-->
<groupId>org.apache.maven.plugins</groupId> <!-- <groupId>org.apache.maven.plugins</groupId>-->
<artifactId>maven-compiler-plugin</artifactId> <!-- <artifactId>maven-compiler-plugin</artifactId>-->
<version>3.8.1</version> <!-- <version>3.8.1</version>-->
<configuration> <!-- <configuration>-->
<source>${java.version}</source> <!-- <source>${java.version}</source>-->
<target>${java.version}</target> <!-- <target>${java.version}</target>-->
</configuration> <!-- </configuration>-->
</plugin> <!-- </plugin>-->
<plugin> <!-- <plugin>-->
<groupId>org.springframework.boot</groupId> <!-- <groupId>org.springframework.boot</groupId>-->
<artifactId>spring-boot-maven-plugin</artifactId> <!-- <artifactId>spring-boot-maven-plugin</artifactId>-->
<configuration> <!-- <configuration>-->
<excludes> <!-- <excludes>-->
<exclude> <!-- <exclude>-->
<groupId>org.projectlombok</groupId> <!-- <groupId>org.projectlombok</groupId>-->
<artifactId>lombok</artifactId> <!-- <artifactId>lombok</artifactId>-->
</exclude> <!-- </exclude>-->
</excludes> <!-- </excludes>-->
</configuration> <!-- </configuration>-->
</plugin> <!-- </plugin>-->
</plugins> <!-- </plugins>-->
</build> <!-- </build>-->
<profiles>
<profile>
<id>gateway-url-rewrite</id>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<mainClass>com.baeldung.springcloudgateway.rewrite.URLRewriteGatewayApplication</mainClass>
<jvmArguments>-Dspring.profiles.active=url-rewrite</jvmArguments>
</configuration>
</plugin>
</plugins>
</build>
</profile>
</profiles>
<properties> <properties>
<!-- <spring-cloud-dependencies.version>Hoxton.SR3</spring-cloud-dependencies.version> --> <spring-cloud-dependencies.version>2021.0.3</spring-cloud-dependencies.version>
<!-- <spring-boot.version>2.2.6.RELEASE</spring-boot.version> -->
<hibernate-validator.version>6.0.2.Final</hibernate-validator.version>
<redis.version>0.7.2</redis.version>
<oauth2-oidc-sdk.version>9.19</oauth2-oidc-sdk.version>
<!-- <junit-bom.version>5.5.2</junit-bom.version> -->
</properties> </properties>
</project> </project>
spring-cloud-modules/spring-cloud-bootstrap/gateway-2/src/main/java/com/baeldung/springcloudgateway/customfilters/gatewayapp/CustomFiltersGatewayApplication.java
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@@ -1,15 +0,0 @@
package com.baeldung.springcloudgateway.customfilters.gatewayapp;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.PropertySource;
@SpringBootApplication
@PropertySource("classpath:customfilters-global-application.properties")
public class CustomFiltersGatewayApplication {
public static void main(String[] args) {
SpringApplication.run(CustomFiltersGatewayApplication.class, args);
}
}
spring-cloud-modules/spring-cloud-bootstrap/gateway-2/src/main/java/com/baeldung/springcloudgateway/customfilters/gatewayapp/config/WebClientConfig.java
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@@ -1,16 +0,0 @@
package com.baeldung.springcloudgateway.customfilters.gatewayapp.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.reactive.function.client.WebClient;
@Configuration
public class WebClientConfig {
@Bean
WebClient client() {
return WebClient.builder()
.build();
}
}
spring-cloud-modules/spring-cloud-bootstrap/gateway-2/src/main/java/com/baeldung/springcloudgateway/customfilters/gatewayapp/filters/factories/ChainRequestGatewayFilterFactory.java
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@@ -1,89 +0,0 @@
package com.baeldung.springcloudgateway.customfilters.gatewayapp.filters.factories;
import java.util.Arrays;
import java.util.List;
import java.util.Locale.LanguageRange;
import java.util.stream.Collectors;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.cloud.gateway.filter.GatewayFilter;
import org.springframework.cloud.gateway.filter.factory.AbstractGatewayFilterFactory;
import org.springframework.stereotype.Component;
import org.springframework.web.reactive.function.client.WebClient;
import reactor.core.publisher.Mono;
@Component
public class ChainRequestGatewayFilterFactory extends AbstractGatewayFilterFactory<ChainRequestGatewayFilterFactory.Config> {
final Logger logger = LoggerFactory.getLogger(ChainRequestGatewayFilterFactory.class);
private final WebClient client;
public ChainRequestGatewayFilterFactory(WebClient client) {
super(Config.class);
this.client = client;
}
@Override
public List<String> shortcutFieldOrder() {
return Arrays.asList("languageServiceEndpoint", "defaultLanguage");
}
@Override
public GatewayFilter apply(Config config) {
return (exchange, chain) -> {
return client.get()
.uri(config.getLanguageServiceEndpoint())
.exchange()
.flatMap(response -> {
return (response.statusCode()
.is2xxSuccessful()) ? response.bodyToMono(String.class) : Mono.just(config.getDefaultLanguage());
})
.map(LanguageRange::parse)
.map(range -> {
exchange.getRequest()
.mutate()
.headers(h -> h.setAcceptLanguage(range));
String allOutgoingRequestLanguages = exchange.getRequest()
.getHeaders()
.getAcceptLanguage()
.stream()
.map(r -> r.getRange())
.collect(Collectors.joining(","));
logger.info("Chain Request output - Request contains Accept-Language header: " + allOutgoingRequestLanguages);
return exchange;
})
.flatMap(chain::filter);
};
}
public static class Config {
private String languageServiceEndpoint;
private String defaultLanguage;
public Config() {
}
public String getLanguageServiceEndpoint() {
return languageServiceEndpoint;
}
public void setLanguageServiceEndpoint(String languageServiceEndpoint) {
this.languageServiceEndpoint = languageServiceEndpoint;
}
public String getDefaultLanguage() {
return defaultLanguage;
}
public void setDefaultLanguage(String defaultLanguage) {
this.defaultLanguage = defaultLanguage;
}
}
}
spring-cloud-modules/spring-cloud-bootstrap/gateway-2/src/main/java/com/baeldung/springcloudgateway/customfilters/gatewayapp/filters/factories/LoggingGatewayFilterFactory.java
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@@ -1,85 +0,0 @@
package com.baeldung.springcloudgateway.customfilters.gatewayapp.filters.factories;
import java.util.Arrays;
import java.util.List;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.cloud.gateway.filter.GatewayFilter;
import org.springframework.cloud.gateway.filter.OrderedGatewayFilter;
import org.springframework.cloud.gateway.filter.factory.AbstractGatewayFilterFactory;
import org.springframework.stereotype.Component;
import reactor.core.publisher.Mono;
@Component
public class LoggingGatewayFilterFactory extends AbstractGatewayFilterFactory<LoggingGatewayFilterFactory.Config> {
final Logger logger = LoggerFactory.getLogger(LoggingGatewayFilterFactory.class);
public static final String BASE_MSG = "baseMessage";
public static final String PRE_LOGGER = "preLogger";
public static final String POST_LOGGER = "postLogger";
public LoggingGatewayFilterFactory() {
super(Config.class);
}
@Override
public List<String> shortcutFieldOrder() {
return Arrays.asList(BASE_MSG, PRE_LOGGER, POST_LOGGER);
}
@Override
public GatewayFilter apply(Config config) {
return new OrderedGatewayFilter((exchange, chain) -> {
if (config.isPreLogger())
logger.info("Pre GatewayFilter logging: " + config.getBaseMessage());
return chain.filter(exchange)
.then(Mono.fromRunnable(() -> {
if (config.isPostLogger())
logger.info("Post GatewayFilter logging: " + config.getBaseMessage());
}));
}, 1);
}
public static class Config {
private String baseMessage;
private boolean preLogger;
private boolean postLogger;
public Config() {
};
public Config(String baseMessage, boolean preLogger, boolean postLogger) {
super();
this.baseMessage = baseMessage;
this.preLogger = preLogger;
this.postLogger = postLogger;
}
public String getBaseMessage() {
return this.baseMessage;
}
public boolean isPreLogger() {
return preLogger;
}
public boolean isPostLogger() {
return postLogger;
}
public void setBaseMessage(String baseMessage) {
this.baseMessage = baseMessage;
}
public void setPreLogger(boolean preLogger) {
this.preLogger = preLogger;
}
public void setPostLogger(boolean postLogger) {
this.postLogger = postLogger;
}
}
}
spring-cloud-modules/spring-cloud-bootstrap/gateway-2/src/main/java/com/baeldung/springcloudgateway/customfilters/gatewayapp/filters/factories/ModifyRequestGatewayFilterFactory.java
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@@ -1,92 +0,0 @@
package com.baeldung.springcloudgateway.customfilters.gatewayapp.filters.factories;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Locale;
import java.util.Optional;
import java.util.stream.Collectors;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.cloud.gateway.filter.GatewayFilter;
import org.springframework.cloud.gateway.filter.factory.AbstractGatewayFilterFactory;
import org.springframework.stereotype.Component;
import org.springframework.util.LinkedMultiValueMap;
import org.springframework.web.server.ServerWebExchange;
import org.springframework.web.util.UriComponentsBuilder;
@Component
public class ModifyRequestGatewayFilterFactory extends AbstractGatewayFilterFactory<ModifyRequestGatewayFilterFactory.Config> {
final Logger logger = LoggerFactory.getLogger(ModifyRequestGatewayFilterFactory.class);
public ModifyRequestGatewayFilterFactory() {
super(Config.class);
}
@Override
public List<String> shortcutFieldOrder() {
return Arrays.asList("defaultLocale");
}
@Override
public GatewayFilter apply(Config config) {
return (exchange, chain) -> {
if (exchange.getRequest()
.getHeaders()
.getAcceptLanguage()
.isEmpty()) {
String queryParamLocale = exchange.getRequest()
.getQueryParams()
.getFirst("locale");
Locale requestLocale = Optional.ofNullable(queryParamLocale)
.map(l -> Locale.forLanguageTag(l))
.orElse(config.getDefaultLocale());
exchange.getRequest()
.mutate()
.headers(h -> h.setAcceptLanguageAsLocales(Collections.singletonList(requestLocale)));
}
String allOutgoingRequestLanguages = exchange.getRequest()
.getHeaders()
.getAcceptLanguage()
.stream()
.map(range -> range.getRange())
.collect(Collectors.joining(","));
logger.info("Modify request output - Request contains Accept-Language header: {}", allOutgoingRequestLanguages);
ServerWebExchange modifiedExchange = exchange.mutate()
.request(originalRequest -> originalRequest.uri(UriComponentsBuilder.fromUri(exchange.getRequest()
.getURI())
.replaceQueryParams(new LinkedMultiValueMap<String, String>())
.build()
.toUri()))
.build();
logger.info("Removed all query params: {}", modifiedExchange.getRequest()
.getURI());
return chain.filter(modifiedExchange);
};
}
public static class Config {
private Locale defaultLocale;
public Config() {
}
public Locale getDefaultLocale() {
return defaultLocale;
}
public void setDefaultLocale(String defaultLocale) {
this.defaultLocale = Locale.forLanguageTag(defaultLocale);
};
}
}
spring-cloud-modules/spring-cloud-bootstrap/gateway-2/src/main/java/com/baeldung/springcloudgateway/customfilters/gatewayapp/filters/factories/ModifyResponseGatewayFilterFactory.java
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@@ -1,48 +0,0 @@
package com.baeldung.springcloudgateway.customfilters.gatewayapp.filters.factories;
import java.util.Optional;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.cloud.gateway.filter.GatewayFilter;
import org.springframework.cloud.gateway.filter.factory.AbstractGatewayFilterFactory;
import org.springframework.http.server.reactive.ServerHttpResponse;
import org.springframework.stereotype.Component;
import reactor.core.publisher.Mono;
@Component
public class ModifyResponseGatewayFilterFactory extends AbstractGatewayFilterFactory<ModifyResponseGatewayFilterFactory.Config> {
final Logger logger = LoggerFactory.getLogger(ModifyResponseGatewayFilterFactory.class);
public ModifyResponseGatewayFilterFactory() {
super(Config.class);
}
@Override
public GatewayFilter apply(Config config) {
return (exchange, chain) -> {
return chain.filter(exchange)
.then(Mono.fromRunnable(() -> {
ServerHttpResponse response = exchange.getResponse();
Optional.ofNullable(exchange.getRequest()
.getQueryParams()
.getFirst("locale"))
.ifPresent(qp -> {
String responseContentLanguage = response.getHeaders()
.getContentLanguage()
.getLanguage();
response.getHeaders()
.add("Bael-Custom-Language-Header", responseContentLanguage);
logger.info("Added custom header to Response");
});
}));
};
}
public static class Config {
}
}
spring-cloud-modules/spring-cloud-bootstrap/gateway-2/src/main/java/com/baeldung/springcloudgateway/customfilters/gatewayapp/filters/factories/ScrubResponseGatewayFilterFactory.java
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@@ -1,110 +0,0 @@
package com.baeldung.springcloudgateway.customfilters.gatewayapp.filters.factories;
import java.util.Arrays;
import java.util.List;
import java.util.regex.Pattern;
import org.reactivestreams.Publisher;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.cloud.gateway.filter.GatewayFilter;
import org.springframework.cloud.gateway.filter.factory.AbstractGatewayFilterFactory;
import org.springframework.cloud.gateway.filter.factory.rewrite.ModifyResponseBodyGatewayFilterFactory;
import org.springframework.cloud.gateway.filter.factory.rewrite.RewriteFunction;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import com.fasterxml.jackson.core.TreeNode;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.node.ArrayNode;
import com.fasterxml.jackson.databind.node.ObjectNode;
import com.fasterxml.jackson.databind.node.TextNode;
import reactor.core.publisher.Mono;
@Component
public class ScrubResponseGatewayFilterFactory extends AbstractGatewayFilterFactory<ScrubResponseGatewayFilterFactory.Config> {
final Logger logger = LoggerFactory.getLogger(ScrubResponseGatewayFilterFactory.class);
private ModifyResponseBodyGatewayFilterFactory modifyResponseBodyFilterFactory;
public ScrubResponseGatewayFilterFactory(ModifyResponseBodyGatewayFilterFactory modifyResponseBodyFilterFactory) {
super(Config.class);
this.modifyResponseBodyFilterFactory = modifyResponseBodyFilterFactory;
}
@Override
public List<String> shortcutFieldOrder() {
return Arrays.asList("fields", "replacement");
}
@Override
public GatewayFilter apply(Config config) {
return modifyResponseBodyFilterFactory
.apply(c -> c.setRewriteFunction(JsonNode.class, JsonNode.class, new Scrubber(config)));
}
public static class Config {
private String fields;
private String replacement;
public String getFields() {
return fields;
}
public void setFields(String fields) {
this.fields = fields;
}
public String getReplacement() {
return replacement;
}
public void setReplacement(String replacement) {
this.replacement = replacement;
}
}
public static class Scrubber implements RewriteFunction<JsonNode,JsonNode> {
private final Pattern fields;
private final String replacement;
public Scrubber(Config config) {
this.fields = Pattern.compile(config.getFields());
this.replacement = config.getReplacement();
}
@Override
public Publisher<JsonNode> apply(ServerWebExchange t, JsonNode u) {
return Mono.just(scrubRecursively(u));
}
private JsonNode scrubRecursively(JsonNode u) {
if ( !u.isContainerNode()) {
return u;
}
if ( u.isObject()) {
ObjectNode node = (ObjectNode)u;
node.fields().forEachRemaining((f) -> {
if ( fields.matcher(f.getKey()).matches() && f.getValue().isTextual()) {
f.setValue(TextNode.valueOf(replacement));
}
else {
f.setValue(scrubRecursively(f.getValue()));
}
});
}
else if ( u.isArray()) {
ArrayNode array = (ArrayNode)u;
for ( int i = 0 ; i < array.size() ; i++ ) {
array.set(i, scrubRecursively(array.get(i)));
}
}
return u;
}
}
}
spring-cloud-modules/spring-cloud-bootstrap/gateway-2/src/main/java/com/baeldung/springcloudgateway/customfilters/gatewayapp/filters/global/FirstPreLastPostGlobalFilter.java
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@@ -1,31 +0,0 @@
package com.baeldung.springcloudgateway.customfilters.gatewayapp.filters.global;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;
@Component
public class FirstPreLastPostGlobalFilter implements GlobalFilter, Ordered {
final Logger logger = LoggerFactory.getLogger(FirstPreLastPostGlobalFilter.class);
@Override
public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
logger.info("First Pre Global Filter");
return chain.filter(exchange)
.then(Mono.fromRunnable(() -> {
logger.info("Last Post Global Filter");
}));
}
@Override
public int getOrder() {
return -1;
}
}
spring-cloud-modules/spring-cloud-bootstrap/gateway-2/src/main/java/com/baeldung/springcloudgateway/customfilters/gatewayapp/filters/global/LoggingGlobalFilterProperties.java
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@@ -1,47 +0,0 @@
package com.baeldung.springcloudgateway.customfilters.gatewayapp.filters.global;
import org.springframework.boot.context.properties.ConfigurationProperties;
@ConfigurationProperties("logging.global")
public class LoggingGlobalFilterProperties {
private boolean enabled;
private boolean requestHeaders;
private boolean requestBody;
private boolean responseHeaders;
private boolean responseBody;
public boolean isEnabled() {
return enabled;
}
public void setEnabled(boolean enabled) {
this.enabled = enabled;
}
public boolean isRequestHeaders() {
return requestHeaders;
}
public void setRequestHeaders(boolean requestHeaders) {
this.requestHeaders = requestHeaders;
}
public boolean isRequestBody() {
return requestBody;
}
public void setRequestBody(boolean requestBody) {
this.requestBody = requestBody;
}
public boolean isResponseHeaders() {
return responseHeaders;
}
public void setResponseHeaders(boolean responseHeaders) {
this.responseHeaders = responseHeaders;
}
public boolean isResponseBody() {
return responseBody;
}
public void setResponseBody(boolean responseBody) {
this.responseBody = responseBody;
}
}
spring-cloud-modules/spring-cloud-bootstrap/gateway-2/src/main/java/com/baeldung/springcloudgateway/customfilters/gatewayapp/filters/global/LoggingGlobalFiltersConfigurations.java
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@@ -1,25 +0,0 @@
package com.baeldung.springcloudgateway.customfilters.gatewayapp.filters.global;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import reactor.core.publisher.Mono;
@Configuration
public class LoggingGlobalFiltersConfigurations {
final Logger logger = LoggerFactory.getLogger(LoggingGlobalFiltersConfigurations.class);
@Bean
public GlobalFilter postGlobalFilter() {
return (exchange, chain) -> {
return chain.filter(exchange)
.then(Mono.fromRunnable(() -> {
logger.info("Global Post Filter executed");
}));
};
}
}
spring-cloud-modules/spring-cloud-bootstrap/gateway-2/src/main/java/com/baeldung/springcloudgateway/customfilters/gatewayapp/filters/global/LoggingGlobalPreFilter.java
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@@ -1,22 +0,0 @@
package com.baeldung.springcloudgateway.customfilters.gatewayapp.filters.global;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;
@Component
public class LoggingGlobalPreFilter implements GlobalFilter {
final Logger logger = LoggerFactory.getLogger(LoggingGlobalPreFilter.class);
@Override
public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
logger.info("Global Pre Filter executed");
return chain.filter(exchange);
}
}
spring-cloud-modules/spring-cloud-bootstrap/gateway-2/src/main/java/com/baeldung/springcloudgateway/customfilters/gatewayapp/routes/ServiceRouteConfiguration.java
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@@ -1,28 +0,0 @@
package com.baeldung.springcloudgateway.customfilters.gatewayapp.routes;
import org.springframework.cloud.gateway.route.RouteLocator;
import org.springframework.cloud.gateway.route.builder.RouteLocatorBuilder;
import org.springframework.context.annotation.Bean;
import com.baeldung.springcloudgateway.customfilters.gatewayapp.filters.factories.LoggingGatewayFilterFactory;
import com.baeldung.springcloudgateway.customfilters.gatewayapp.filters.factories.LoggingGatewayFilterFactory.Config;
/**
* Note: We want to keep this as an example of configuring a Route with a custom filter
*
* This corresponds with the properties configuration we have
*/
// @Configuration
public class ServiceRouteConfiguration {
@Bean
public RouteLocator routes(RouteLocatorBuilder builder, LoggingGatewayFilterFactory loggingFactory) {
return builder.routes()
.route("service_route_java_config", r -> r.path("/service/**")
.filters(f -> f.rewritePath("/service(?<segment>/?.*)", "$\\{segment}")
.filter(loggingFactory.apply(new Config("My Custom Message", true, true))))
.uri("http://localhost:8081"))
.build();
}
}
spring-cloud-modules/spring-cloud-bootstrap/gateway-2/src/main/java/com/baeldung/springcloudgateway/customfilters/secondservice/SecondServiceApplication.java
-15
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@@ -1,15 +0,0 @@
package com.baeldung.springcloudgateway.customfilters.secondservice;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.PropertySource;
@SpringBootApplication
@PropertySource("classpath:secondservice-application.properties")
public class SecondServiceApplication {
public static void main(String[] args) {
SpringApplication.run(SecondServiceApplication.class, args);
}
}
spring-cloud-modules/spring-cloud-bootstrap/gateway-2/src/main/java/com/baeldung/springcloudgateway/customfilters/secondservice/web/SecondServiceRestController.java
-18
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@@ -1,18 +0,0 @@
package com.baeldung.springcloudgateway.customfilters.secondservice.web;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import reactor.core.publisher.Mono;
@RestController
public class SecondServiceRestController {
@GetMapping("/resource/language")
public Mono<ResponseEntity<String>> getResource() {
return Mono.just(ResponseEntity.ok()
.body("es"));
}
}
spring-cloud-modules/spring-cloud-bootstrap/gateway-2/src/main/java/com/baeldung/springcloudgateway/customfilters/service/ServiceApplication.java
-15
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@@ -1,15 +0,0 @@
package com.baeldung.springcloudgateway.customfilters.service;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.PropertySource;
@SpringBootApplication
@PropertySource("classpath:service-application.properties")
public class ServiceApplication {
public static void main(String[] args) {
SpringApplication.run(ServiceApplication.class, args);
}
}
spring-cloud-modules/spring-cloud-bootstrap/gateway-2/src/main/java/com/baeldung/springcloudgateway/customfilters/service/web/ServiceRestController.java
-22
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@@ -1,22 +0,0 @@
package com.baeldung.springcloudgateway.customfilters.service.web;
import java.util.Locale;
import org.springframework.http.HttpHeaders;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import reactor.core.publisher.Mono;
@RestController
public class ServiceRestController {
@GetMapping("/resource")
public Mono<ResponseEntity<String>> getResource() {
return Mono.just(ResponseEntity.ok()
.header(HttpHeaders.CONTENT_LANGUAGE, Locale.ENGLISH.getLanguage())
.body("Service Resource"));
}
}
spring-cloud-modules/spring-cloud-bootstrap/gateway-2/src/main/java/com/baeldung/springcloudgateway/rewrite/URLRewriteGatewayApplication.java
-25
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@@ -1,25 +0,0 @@
/**
*
*/
package com.baeldung.springcloudgateway.rewrite;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.cloud.gateway.filter.GatewayFilter;
import reactor.core.publisher.Mono;
/**
* @author Baeldung
*
*/
@SpringBootApplication
public class URLRewriteGatewayApplication {
public static void main(String[] args) {
new SpringApplicationBuilder(URLRewriteGatewayApplication.class)
.profiles("url-rewrite")
.run(args);
}
}
spring-cloud-modules/spring-cloud-bootstrap/gateway-2/src/main/java/com/baeldung/springcloudgateway/rewrite/routes/DynamicRewriteRoute.java
-43
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@@ -1,43 +0,0 @@
package com.baeldung.springcloudgateway.rewrite.routes;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.cloud.gateway.route.RouteLocator;
import org.springframework.cloud.gateway.route.builder.RouteLocatorBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Profile;
import org.springframework.http.server.reactive.ServerHttpRequest;
import static org.springframework.cloud.gateway.support.ServerWebExchangeUtils.GATEWAY_REQUEST_URL_ATTR;
import static org.springframework.cloud.gateway.support.ServerWebExchangeUtils.addOriginalRequestUrl;
import java.util.Random;
@Configuration
@Profile("url-rewrite")
public class DynamicRewriteRoute {
@Value("${rewrite.backend.uri}")
private String backendUri;
private static Random rnd = new Random();
@Bean
public RouteLocator dynamicZipCodeRoute(RouteLocatorBuilder builder) {
return builder.routes()
.route("dynamicRewrite", r ->
r.path("/v2/zip/**")
.filters(f -> f.filter((exchange, chain) -> {
ServerHttpRequest req = exchange.getRequest();
addOriginalRequestUrl(exchange, req.getURI());
String path = req.getURI().getRawPath();
String newPath = path.replaceAll(
"/v2/zip/(?<zipcode>.*)",
"/api/zip/${zipcode}-" + String.format("%03d", rnd.nextInt(1000)));
ServerHttpRequest request = req.mutate().path(newPath).build();
exchange.getAttributes().put(GATEWAY_REQUEST_URL_ATTR, request.getURI());
return chain.filter(exchange.mutate().request(request).build());
}))
.uri(backendUri))
.build();
}
}
spring-cloud-modules/spring-cloud-bootstrap/gateway-2/src/main/java/com/baeldung/springcloudgateway/webfilters/WebFilterGatewayApplication.java
-15
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@@ -1,15 +0,0 @@
package com.baeldung.springcloudgateway.webfilters;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
@SpringBootApplication
public class WebFilterGatewayApplication {
public static void main(String[] args) {
new SpringApplicationBuilder(WebFilterGatewayApplication.class)
.profiles("url-rewrite")
.run(args);
}
}
spring-cloud-modules/spring-cloud-bootstrap/gateway-2/src/main/java/com/baeldung/springcloudgateway/webfilters/config/ModifyBodyRouteConfig.java
-49
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@@ -1,49 +0,0 @@
package com.baeldung.springcloudgateway.webfilters.config;
import org.springframework.cloud.gateway.route.RouteLocator;
import org.springframework.cloud.gateway.route.builder.RouteLocatorBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.MediaType;
import reactor.core.publisher.Mono;
@Configuration
public class ModifyBodyRouteConfig {
@Bean
public RouteLocator routes(RouteLocatorBuilder builder) {
return builder.routes()
.route("modify_request_body", r -> r.path("/post")
.filters(f -> f.modifyRequestBody(String.class, Hello.class, MediaType.APPLICATION_JSON_VALUE,
(exchange, s) -> Mono.just(new Hello(s.toUpperCase())))).uri("https://httpbin.org"))
.build();
}
@Bean
public RouteLocator responseRoutes(RouteLocatorBuilder builder) {
return builder.routes()
.route("modify_response_body", r -> r.path("/put/**")
.filters(f -> f.modifyResponseBody(String.class, Hello.class, MediaType.APPLICATION_JSON_VALUE,
(exchange, s) -> Mono.just(new Hello("New Body")))).uri("https://httpbin.org"))
.build();
}
static class Hello {
String message;
public Hello() { }
public Hello(String message) {
this.message = message;
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
}
}
spring-cloud-modules/spring-cloud-bootstrap/gateway-2/src/main/java/com/baeldung/springcloudgateway/webfilters/config/RequestRateLimiterResolverConfig.java
-16
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@@ -1,16 +0,0 @@
package com.baeldung.springcloudgateway.webfilters.config;
import org.springframework.cloud.gateway.filter.ratelimit.KeyResolver;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import reactor.core.publisher.Mono;
@Configuration
public class RequestRateLimiterResolverConfig {
@Bean
KeyResolver userKeyResolver() {
return exchange -> Mono.just("1");
}
}
spring-cloud-modules/spring-cloud-bootstrap/gateway-2/src/main/resources/application-nosecurity.yml
-8
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@@ -1,8 +0,0 @@
# Enable this profile to disable security
spring:
autoconfigure:
exclude:
- org.springframework.boot.autoconfigure.security.servlet.SecurityAutoConfiguration
- org.springframework.boot.actuate.autoconfigure.ManagementSecurityAutoConfiguration
- org.springframework.boot.autoconfigure.security.reactive.ReactiveSecurityAutoConfiguration
- org.springframework.boot.actuate.autoconfigure.security.reactive.ReactiveManagementWebSecurityAutoConfiguration
spring-cloud-modules/spring-cloud-bootstrap/gateway-2/src/main/resources/application-scrub.yml
-12
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@@ -1,12 +0,0 @@
spring:
cloud:
gateway:
routes:
- id: rewrite_with_scrub
uri: ${rewrite.backend.uri:http://example.com}
predicates:
- Path=/v1/customer/**
filters:
- RewritePath=/v1/customer/(?<segment>.*),/api/$\{segment}
- ScrubResponse=ssn,***
spring-cloud-modules/spring-cloud-bootstrap/gateway-2/src/main/resources/application-url-rewrite.yml
-11
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@@ -1,11 +0,0 @@
spring:
cloud:
gateway:
routes:
- id: rewrite_v1
uri: ${rewrite.backend.uri:http://example.com}
predicates:
- Path=/v1/customer/**
filters:
- RewritePath=/v1/customer/(?<segment>.*),/api/$\{segment}
spring-cloud-modules/spring-cloud-bootstrap/gateway-2/src/main/resources/application-webfilters.yml
-102
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@@ -1,102 +0,0 @@
logging:
level:
org.springframework.cloud.gateway: INFO
reactor.netty.http.client: INFO
spring:
redis:
host: localhost
port: 6379
cloud:
gateway:
routes:
- id: request_header_route
uri: https://httpbin.org
predicates:
- Path=/get/**
filters:
- AddRequestHeader=My-Header-Good,Good
- AddRequestHeader=My-Header-Remove,Remove
- AddRequestParameter=var, good
- AddRequestParameter=var2, remove
- MapRequestHeader=My-Header-Good, My-Header-Bad
- MapRequestHeader=My-Header-Set, My-Header-Bad
- SetRequestHeader=My-Header-Set, Set
- RemoveRequestHeader=My-Header-Remove
- RemoveRequestParameter=var2
- PreserveHostHeader
- id: response_header_route
uri: https://httpbin.org
predicates:
- Path=/header/post/**
filters:
- AddResponseHeader=My-Header-Good,Good
- AddResponseHeader=My-Header-Set,Good
- AddResponseHeader=My-Header-Rewrite, password=12345678
- DedupeResponseHeader=Access-Control-Allow-Credentials Access-Control-Allow-Origin
- AddResponseHeader=My-Header-Remove,Remove
- SetResponseHeader=My-Header-Set, Set
- RemoveResponseHeader=My-Header-Remove
- RewriteResponseHeader=My-Header-Rewrite, password=[^&]+, password=***
- RewriteLocationResponseHeader=AS_IN_REQUEST, Location, ,
- StripPrefix=1
- id: path_route
uri: https://httpbin.org
predicates:
- Path=/new/post/**
filters:
- RewritePath=/new(?<segment>/?.*), $\{segment}
- SetPath=/post
- id: redirect_route
uri: https://httpbin.org
predicates:
- Path=/fake/post/**
filters:
- RedirectTo=302, https://httpbin.org
- id: status_route
uri: https://httpbin.org
predicates:
- Path=/delete/**
filters:
- SetStatus=401
- id: size_route
uri: https://httpbin.org
predicates:
- Path=/anything
filters:
- name: RequestSize
args:
maxSize: 5000000
- id: retry_test
uri: https://httpbin.org
predicates:
- Path=/status/502
filters:
- name: Retry
args:
retries: 3
statuses: BAD_GATEWAY
methods: GET,POST
backoff:
firstBackoff: 10ms
maxBackoff: 50ms
factor: 2
basedOnPreviousValue: false
- id: request_rate_limiter
uri: https://httpbin.org
predicates:
- Path=/redis/get/**
filters:
- StripPrefix=1
- name: RequestRateLimiter
args:
redis-rate-limiter.replenishRate: 10
redis-rate-limiter.burstCapacity: 5
key-resolver: "#{@userKeyResolver}"
spring-cloud-modules/spring-cloud-bootstrap/gateway-2/src/main/resources/customfilters-global-application.properties
-19
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@@ -1,19 +0,0 @@
spring.cloud.gateway.routes[0].id=service_route
spring.cloud.gateway.routes[0].uri=http://localhost:8081
spring.cloud.gateway.routes[0].predicates[0]=Path=/service/**
spring.cloud.gateway.routes[0].filters[0]=RewritePath=/service(?<segment>/?.*), $\{segment}
spring.cloud.gateway.routes[0].filters[1]=Logging=My Custom Message, true, true
# Or, as an alternative:
#spring.cloud.gateway.routes[0].filters[1].name=Logging
#spring.cloud.gateway.routes[0].filters[1].args[baseMessage]=My Custom Message
#spring.cloud.gateway.routes[0].filters[1].args[preLogger]=true
#spring.cloud.gateway.routes[0].filters[1].args[postLogger]=true
spring.cloud.gateway.routes[0].filters[2]=ModifyResponse
spring.cloud.gateway.routes[0].filters[3]=ModifyRequest=en
spring.cloud.gateway.routes[0].filters[4]=ChainRequest=http://localhost:8082/resource/language, fr
management.endpoints.web.exposure.include=*
server.port=80
spring-cloud-modules/spring-cloud-bootstrap/gateway-2/src/main/resources/secondservice-application.properties
-1
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@@ -1 +0,0 @@
server.port=8082

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