search in keycloak with spring boot module

search-in-keycloak-with-spring-boot/.gitignore

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+HELP.md
+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/

search-in-keycloak-with-spring-boot/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>3.0.6</version>
+        <relativePath/> <!-- lookup parent from repository -->
+    </parent>
+    <groupId>com.example</groupId>
+    <artifactId>search-in-keycloak-with-spring-boot</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>search-in-keycloak-with-spring-boot</name>
+    <description>search-in-keycloak-with-spring-boot</description>
+    <properties>
+        <java.version>17</java.version>
+    </properties>
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.keycloak</groupId>
+            <artifactId>keycloak-admin-client</artifactId>
+            <version>19.0.1</version>
+        </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <optional>true</optional>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+                <configuration>
+                    <excludes>
+                        <exclude>
+                            <groupId>org.projectlombok</groupId>
+                            <artifactId>lombok</artifactId>
+                        </exclude>
+                    </excludes>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

search-in-keycloak-with-spring-boot/src/main/java/com/example/searchinkeycloakwithspringboot/SearchInKeycloakWithSpringBootApplication.java

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+package com.example.searchinkeycloakwithspringboot;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class SearchInKeycloakWithSpringBootApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(SearchInKeycloakWithSpringBootApplication.class, args);
+    }
+
+}

search-in-keycloak-with-spring-boot/src/main/java/com/example/searchinkeycloakwithspringboot/config/Config.java

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+package com.example.searchinkeycloakwithspringboot.config;
+
+import org.jboss.resteasy.client.jaxrs.ResteasyClientBuilder;
+import org.keycloak.OAuth2Constants;
+import org.keycloak.admin.client.Keycloak;
+import org.keycloak.admin.client.KeycloakBuilder;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.stereotype.Component;
+
+@Configuration
+public class Config {
+
+    @Bean
+    public  Keycloak keycloak() {
+       return KeycloakBuilder.builder()
+                .serverUrl("http://localhost:8080/")
+                .realm("master")
+                .grantType(OAuth2Constants.PASSWORD)
+                .username("admin")
+                .password("admin")
+                .clientId("admin-cli")
+                .resteasyClient(new ResteasyClientBuilder()
+                        .connectionPoolSize(10)
+                        .build()).build();
+    }
+}

search-in-keycloak-with-spring-boot/src/main/java/com/example/searchinkeycloakwithspringboot/exception/UserNotFoundInKeycloakException.java

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+package com.example.searchinkeycloakwithspringboot.exception;
+
+public class UserNotFoundInKeycloakException extends Exception{
+    public UserNotFoundInKeycloakException(String message) {
+        super(message);
+    }
+}

search-in-keycloak-with-spring-boot/src/main/java/com/example/searchinkeycloakwithspringboot/exception/handler/ExceptionController.java

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+package com.example.searchinkeycloakwithspringboot.exception.handler;
+
+import com.example.searchinkeycloakwithspringboot.exception.UserNotFoundInKeycloakException;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.ControllerAdvice;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+
+@ControllerAdvice
+public class ExceptionController {
+
+
+
+    @ExceptionHandler
+    public ResponseEntity<String> handleUserNotFoundInKeycloakException(UserNotFoundInKeycloakException e){
+        return ResponseEntity.badRequest().body(e.getMessage());
+    }
+
+}

search-in-keycloak-with-spring-boot/src/main/java/com/example/searchinkeycloakwithspringboot/service/KeycloakService.java

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+package com.example.searchinkeycloakwithspringboot.service;
+
+import com.example.searchinkeycloakwithspringboot.exception.UserNotFoundInKeycloakException;
+import org.keycloak.admin.client.Keycloak;
+import org.keycloak.admin.client.resource.RoleResource;
+import org.keycloak.admin.client.resource.UserResource;
+import org.keycloak.representations.idm.UserRepresentation;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+import java.util.Set;
+
+@Service
+public class KeycloakService {
+
+
+    @Autowired
+    private Keycloak keycloak;
+
+
+    public UserRepresentation searchById(String id) {
+        UserResource userResource = keycloak.realm("master").users().get(id);
+        return userResource.toRepresentation();
+    }
+    public UserRepresentation searchByEmail(String email) throws UserNotFoundInKeycloakException {
+        List<UserRepresentation> userRepresentations = keycloak.realm("master").users().search(null, null, null, email, 0, 1);
+        if (userRepresentations.isEmpty()) {
+            throw new UserNotFoundInKeycloakException("User with email " + email + " not found");
+        }
+        return userRepresentations.get(0);
+    }
+    public UserRepresentation searchByUsername(String username) throws UserNotFoundInKeycloakException {
+        List<UserRepresentation> userRepresentations = keycloak.realm("master").users().search(username, true);
+        if (userRepresentations.isEmpty()) {
+            throw new UserNotFoundInKeycloakException("User with username " + username + " not found");
+        }
+        return userRepresentations.get(0);
+    }
+    public UserRepresentation searchByPhone(String phone) throws UserNotFoundInKeycloakException {
+        List<UserRepresentation> userRepresentations = keycloak.realm("master").users().searchByAttributes("phone:" + phone);
+        if (userRepresentations.isEmpty()) {
+            throw new UserNotFoundInKeycloakException("User with phone number " + phone + " not found");
+        }
+        return userRepresentations.get(0);
+    }
+    public Set<UserRepresentation> searchByRole(String roleName) {
+       return keycloak.realm("master").roles().get(roleName).getRoleUserMembers() ;
+    }
+
+}

search-in-keycloak-with-spring-boot/src/main/java/com/example/searchinkeycloakwithspringboot/web/SearchController.java

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+package com.example.searchinkeycloakwithspringboot.web;
+
+import com.example.searchinkeycloakwithspringboot.exception.UserNotFoundInKeycloakException;
+import com.example.searchinkeycloakwithspringboot.service.KeycloakService;
+import lombok.AllArgsConstructor;
+import org.keycloak.representations.idm.UserRepresentation;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.List;
+import java.util.Set;
+
+@RestController
+@RequestMapping("/search")
+@AllArgsConstructor
+public class SearchController {
+
+
+
+
+    private KeycloakService keycloakService ;
+
+
+
+    @GetMapping("/id/{id}")
+    public ResponseEntity<UserRepresentation> searchById(@PathVariable String id) {
+       return ResponseEntity.ok().body(keycloakService.searchById(id));
+    }
+    @GetMapping("/email/{email}")
+    public ResponseEntity<UserRepresentation> searchByEmail(@PathVariable String email ) throws UserNotFoundInKeycloakException {
+        return ResponseEntity.ok().body(keycloakService.searchByEmail(email));
+    }
+    @GetMapping("/username/{username}")
+    public ResponseEntity<UserRepresentation> searchByUsername(@PathVariable String username) throws UserNotFoundInKeycloakException {
+        return ResponseEntity.ok().body(keycloakService.searchByUsername(username));
+    }
+    @GetMapping("/phone/{phone}")
+    public ResponseEntity<UserRepresentation> searchByPhoneNumber(@PathVariable String phone) throws UserNotFoundInKeycloakException {
+        return ResponseEntity.ok().body(keycloakService.searchByPhone(phone));
+    }
+    @GetMapping("/role/{role}")
+    public ResponseEntity<Set<UserRepresentation>> searchByRole(@PathVariable String role) {
+        return ResponseEntity.ok().body(keycloakService.searchByRole(role));
+    }
+
+}

search-in-keycloak-with-spring-boot/src/main/resources/application.properties

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+server.port=9090

search-in-keycloak-with-spring-boot/src/test/java/com/example/searchinkeycloakwithspringboot/SearchInKeycloakWithSpringBootApplicationTests.java

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+package com.example.searchinkeycloakwithspringboot;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class SearchInKeycloakWithSpringBootApplicationTests {
+
+    @Test
+    void contextLoads() {
+    }
+
+}