├── README.md ├── backend ├── api-gateway-service │ ├── pom.xml │ └── src │ │ └── main │ │ ├── java │ │ └── com │ │ │ └── tushar │ │ │ └── crypto │ │ │ └── apigateway │ │ │ └── APIGatewayServer.java │ │ └── resources │ │ └── application.properties ├── service-discovery │ ├── pom.xml │ └── src │ │ └── main │ │ ├── java │ │ └── org │ │ │ └── tushar │ │ │ └── user │ │ │ └── ServiceDiscoveryApplication.java │ │ └── resources │ │ └── application.properties └── user-registration │ ├── pom.xml │ └── src │ ├── main │ ├── java │ │ └── com │ │ │ └── tushar │ │ │ └── usermanagement │ │ │ ├── RabbitMQReceiver.java │ │ │ ├── UserManagementApplication.java │ │ │ ├── config │ │ │ └── UserRegistrationConfig.java │ │ │ ├── exception │ │ │ └── CustomResponse.java │ │ │ ├── message │ │ │ └── UserRegistrationNotification.java │ │ │ ├── model │ │ │ └── User.java │ │ │ ├── repository │ │ │ └── UserManagementRepository.java │ │ │ ├── request │ │ │ └── RegistrationRequest.java │ │ │ ├── resources │ │ │ └── UserManagementController.java │ │ │ └── service │ │ │ └── UserManagementService.java │ └── resources │ │ └── application.properties │ └── module-info.java ├── images ├── Error.PNG ├── Success.PNG ├── UserRegistrationForm.PNG └── diagram.png └── ui ├── package.json ├── public └── index.html └── src ├── App.js ├── components ├── Error.js ├── Success.js └── UserRegistration.js ├── constants └── Constants.js ├── index.js └── serviceWorker.js /README.md: -------------------------------------------------------------------------------- 1 | # user-registration using microservices 2 | implementing user registration as part of an application that has a micro-service architecture 3 | 4 | 5 | Here we are implementing user registration as part of an application that has a micro-service architecture. Users register by 6 | entering their email address and a password. The system then initiates an account creation workflow that includes creating the account in the database and sending an email to confirm their address. 7 | 8 | The following diagram shows the user registration service and how it fits into the overall system architecture. 9 | 10 | ![](https://github.com/tushargoel86/user-registration/blob/master/images/diagram.png) 11 | 12 | 13 | The backend user registration service exposes a single RESTful endpoint for registering users. A registration request contains the user’s email address and password. The service verifies that a user with that email address has not previously registered and publishes a message notifying the rest of the system that a new user has registered. The notification is consumed by various other services including the user management service, which maintains user accounts, and the email service, which sends a confirmation email to the user. 14 | 15 | 16 | ``` 17 | File Structure 18 | 19 | ├───backend 20 | │ ├───api-gateway-service 21 | │ │ └───src 22 | │ │ └───main 23 | │ │ ├───java 24 | │ │ │ └───com 25 | │ │ │ └───tushar 26 | │ │ │ └───crypto 27 | │ │ │ └───apigateway 28 | │ │ └───resources 29 | │ ├───service-discovery 30 | │ │ └───src 31 | │ │ └───main 32 | │ │ ├───java 33 | │ │ │ └───org 34 | │ │ │ └───tushar 35 | │ │ │ └───user 36 | │ │ └───resources 37 | │ └───user-registration 38 | │ ├───java 39 | │ │ └───com 40 | │ │ └───tushar 41 | │ │ └───usermanagement 42 | │ │ ├───config 43 | │ │ ├───exception 44 | │ │ ├───message 45 | │ │ ├───model 46 | │ │ ├───repository 47 | │ │ ├───request 48 | │ │ ├───resources 49 | │ │ └───service 50 | │ └───resources 51 | ├───images 52 | └───ui 53 | └───src 54 | ├───components 55 | └───constants 56 | ``` 57 | 58 | Components Used: 59 | 60 | # UI 61 | * react 62 | * semantic-ui-react 63 | * hooks 64 | 65 | # UI Install: 66 | * create-react-app ui 67 | * yarn i semantic-ui-css 68 | * yarn i semantic-ui-react 69 | * yarn i eslint-plugin-react-hooks 70 | 71 | # User Form 72 | ![](https://github.com/tushargoel86/user-registration/blob/master/images/UserRegistrationForm.PNG) 73 | 74 | # Success Message 75 | ![](https://github.com/tushargoel86/user-registration/blob/master/images/Success.PNG) 76 | 77 | # Error Message 78 | ![](https://github.com/tushargoel86/user-registration/blob/master/images/Error.PNG) 79 | 80 | 81 | 82 | # Backend 83 | * Spring Boot 84 | * API Gateway server (Zuul) 85 | * Service Discovery (Eureka) 86 | * MongoDB 87 | * AMQP (RabbitMQ) 88 | 89 | 90 | -------------------------------------------------------------------------------- /backend/api-gateway-service/pom.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 4.0.0 5 | 6 | org.tushar.user 7 | apigateway-service 8 | 0.0.1-SNAPSHOT 9 | jar 10 | 11 | apigateway-service 12 | Demo project for Spring Boot 13 | 14 | 15 | org.springframework.boot 16 | spring-boot-starter-parent 17 | 2.0.5.RELEASE 18 | 19 | 20 | 21 | 22 | UTF-8 23 | UTF-8 24 | 1.8 25 | Finchley.SR1 26 | 27 | 28 | 29 | 30 | org.springframework.boot 31 | spring-boot-starter-actuator 32 | 33 | 34 | org.springframework.boot 35 | spring-boot-starter-web 36 | 37 | 38 | org.springframework.cloud 39 | spring-cloud-starter-netflix-eureka-client 40 | 41 | 42 | org.springframework.cloud 43 | spring-cloud-starter-netflix-zuul 44 | 45 | 46 | 47 | org.springframework.boot 48 | spring-boot-devtools 49 | runtime 50 | 51 | 52 | 53 | 54 | 55 | 56 | org.springframework.boot 57 | spring-boot-starter-test 58 | test 59 | 60 | 61 | 62 | 63 | 64 | 65 | org.springframework.cloud 66 | spring-cloud-dependencies 67 | ${spring-cloud.version} 68 | pom 69 | import 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | org.springframework.boot 78 | spring-boot-maven-plugin 79 | 80 | 81 | 82 | 83 | 84 | 85 | -------------------------------------------------------------------------------- /backend/api-gateway-service/src/main/java/com/tushar/crypto/apigateway/APIGatewayServer.java: -------------------------------------------------------------------------------- 1 | package com.tushar.crypto.apigateway; 2 | 3 | import org.springframework.boot.SpringApplication; 4 | import org.springframework.boot.autoconfigure.SpringBootApplication; 5 | import org.springframework.cloud.client.discovery.EnableDiscoveryClient; 6 | import org.springframework.cloud.netflix.zuul.EnableZuulProxy; 7 | 8 | @EnableZuulProxy 9 | @SpringBootApplication 10 | @EnableDiscoveryClient 11 | public class APIGatewayServer { 12 | 13 | public static void main(String[] args) { 14 | SpringApplication.run(APIGatewayServer.class, args); 15 | } 16 | } 17 | -------------------------------------------------------------------------------- /backend/api-gateway-service/src/main/resources/application.properties: -------------------------------------------------------------------------------- 1 | server.port=8765 2 | spring.application.name=netflix-zul-service 3 | eureka.client.service-url.default-zone=http://localhost:8761/eureka 4 | 5 | zuul.host.socket-timeout-millis=60000 6 | zuul.host.connect-timeout-millis=10000 7 | 8 | 9 | 10 | 11 | -------------------------------------------------------------------------------- /backend/service-discovery/pom.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 4.0.0 5 | 6 | org.tushar.user 7 | service.discovery 8 | 0.0.1-SNAPSHOT 9 | jar 10 | 11 | service-discovery 12 | Demo project for Spring Boot 13 | 14 | 15 | org.springframework.boot 16 | spring-boot-starter-parent 17 | 2.0.5.RELEASE 18 | 19 | 20 | 21 | 22 | UTF-8 23 | UTF-8 24 | 11 25 | Finchley.RELEASE 26 | 27 | 28 | 29 | 30 | org.springframework.boot 31 | spring-boot-starter-actuator 32 | 33 | 34 | org.springframework.cloud 35 | spring-cloud-starter-netflix-eureka-server 36 | 37 | 38 | 39 | org.springframework.boot 40 | spring-boot-devtools 41 | runtime 42 | 43 | 44 | org.springframework.boot 45 | spring-boot-starter-test 46 | test 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | org.springframework.cloud 57 | spring-cloud-dependencies 58 | ${spring-cloud.version} 59 | pom 60 | import 61 | 62 | 63 | 64 | jakarta.xml.bind 65 | jakarta.xml.bind-api 66 | 3.0.0 67 | 68 | 69 | 70 | 71 | com.sun.xml.bind 72 | jaxb-impl 73 | 3.0.0 74 | runtime 75 | 76 | 77 | 78 | 79 | jakarta.xml.bind 80 | jakarta.xml.bind-api 81 | 2.3.3 82 | 83 | 84 | 85 | com.sun.xml.bind 86 | jaxb-ri 87 | 2.3.3 88 | 89 | 90 | 91 | com.sun.xml.bind 92 | jaxb-impl 93 | 2.3.3 94 | 95 | 96 | 97 | 98 | 99 | 100 | 101 | org.springframework.boot 102 | spring-boot-maven-plugin 103 | 104 | 105 | 106 | 107 | 108 | 109 | -------------------------------------------------------------------------------- /backend/service-discovery/src/main/java/org/tushar/user/ServiceDiscoveryApplication.java: -------------------------------------------------------------------------------- 1 | package org.tushar.user; 2 | 3 | import org.springframework.boot.SpringApplication; 4 | import org.springframework.boot.autoconfigure.SpringBootApplication; 5 | import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer; 6 | 7 | @SpringBootApplication 8 | @EnableEurekaServer 9 | public class ServiceDiscoveryApplication { 10 | 11 | public static void main(String[] args) { 12 | SpringApplication.run(ServiceDiscoveryApplication.class, args); 13 | } 14 | } 15 | -------------------------------------------------------------------------------- /backend/service-discovery/src/main/resources/application.properties: -------------------------------------------------------------------------------- 1 | server.port=8761 2 | spring.application.name=service-discovery 3 | eureka.client.register-with-eureka=false 4 | eureka.client.fetch-registery=false -------------------------------------------------------------------------------- /backend/user-registration/pom.xml: -------------------------------------------------------------------------------- 1 | 2 | 5 | 4.0.0 6 | 7 | org.tushar.management 8 | user.registration 9 | 0.0.1-SNAPSHOT 10 | jar 11 | 12 | user-management 13 | Demo project for Spring Boot 14 | 15 | 16 | org.springframework.boot 17 | spring-boot-starter-parent 18 | 2.0.5.RELEASE 19 | 20 | 21 | 22 | 23 | UTF-8 24 | UTF-8 25 | 1.8 26 | Finchley.RELEASE 27 | 28 | 29 | 30 | 31 | org.springframework.boot 32 | spring-boot-starter-actuator 33 | 34 | 35 | 36 | com.fasterxml.jackson.core 37 | jackson-databind 38 | 2.9.2 39 | 40 | 41 | 42 | 43 | org.springframework.amqp 44 | spring-rabbit 45 | 2.0.8.RELEASE 46 | 47 | 48 | com.rabbitmq 49 | amqp-client 50 | 5.7.3 51 | 52 | 53 | 54 | org.springframework.boot 55 | spring-boot-starter-web 56 | 57 | 58 | 59 | javax.validation 60 | validation-api 61 | 2.0.1.Final 62 | 63 | 64 | 65 | org.mongodb 66 | mongo-java-driver 67 | 3.11.2 68 | 69 | 70 | 71 | org.springframework.data 72 | spring-data-mongodb 73 | 2.0.10.RELEASE 74 | 75 | 76 | 77 | org.springframework.cloud 78 | spring-cloud-starter-netflix-eureka-client 79 | 2.0.1.RELEASE 80 | 81 | 82 | 83 | org.springframework.boot 84 | spring-boot-starter-test 85 | test 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | org.springframework.cloud 96 | spring-cloud-dependencies 97 | ${spring-cloud.version} 98 | pom 99 | import 100 | 101 | 102 | 103 | 104 | 105 | 106 | 107 | org.springframework.boot 108 | spring-boot-maven-plugin 109 | 110 | 111 | 112 | 113 | 114 | 115 | -------------------------------------------------------------------------------- /backend/user-registration/src/main/java/com/tushar/usermanagement/RabbitMQReceiver.java: -------------------------------------------------------------------------------- 1 | package com.tushar.usermanagement; 2 | 3 | import java.util.concurrent.CountDownLatch; 4 | 5 | import org.springframework.amqp.core.Message; 6 | import org.springframework.amqp.rabbit.annotation.RabbitListener; 7 | import org.springframework.stereotype.Component; 8 | 9 | import com.tushar.usermanagement.message.UserRegistrationNotification; 10 | 11 | 12 | @Component 13 | public class RabbitMQReceiver { 14 | 15 | private CountDownLatch latch = new CountDownLatch(1); 16 | 17 | @RabbitListener(queues = "user-registration-queue") 18 | public void receiveMessage(Message message) { 19 | System.out.println("Received <" + message.toString() + ">"); 20 | latch.countDown(); 21 | } 22 | 23 | public CountDownLatch getLatch() { 24 | return latch; 25 | } 26 | 27 | } -------------------------------------------------------------------------------- /backend/user-registration/src/main/java/com/tushar/usermanagement/UserManagementApplication.java: -------------------------------------------------------------------------------- 1 | package com.tushar.usermanagement; 2 | 3 | import org.springframework.boot.SpringApplication; 4 | import org.springframework.boot.autoconfigure.SpringBootApplication; 5 | import org.springframework.data.mongodb.repository.config.EnableMongoRepositories; 6 | 7 | @EnableMongoRepositories 8 | @SpringBootApplication 9 | public class UserManagementApplication { 10 | 11 | public static void main(String[] args) { 12 | SpringApplication.run(UserManagementApplication.class, args); 13 | } 14 | } 15 | -------------------------------------------------------------------------------- /backend/user-registration/src/main/java/com/tushar/usermanagement/config/UserRegistrationConfig.java: -------------------------------------------------------------------------------- 1 | package com.tushar.usermanagement.config; 2 | 3 | import org.springframework.amqp.core.Binding; 4 | import org.springframework.amqp.core.BindingBuilder; 5 | import org.springframework.amqp.core.Queue; 6 | import org.springframework.amqp.core.TopicExchange; 7 | import org.springframework.amqp.rabbit.connection.ConnectionFactory; 8 | import org.springframework.amqp.rabbit.core.RabbitTemplate; 9 | import org.springframework.amqp.support.converter.Jackson2JsonMessageConverter; 10 | import org.springframework.beans.factory.annotation.Value; 11 | import org.springframework.context.annotation.Bean; 12 | import org.springframework.context.annotation.Configuration; 13 | 14 | import com.fasterxml.jackson.databind.ObjectMapper; 15 | 16 | @Configuration 17 | public class UserRegistrationConfig { 18 | 19 | @Value("${exchange-name}") 20 | String exchangeName; 21 | 22 | @Value("${queue}") 23 | String queue; 24 | 25 | @Value("${routingKey}") 26 | String routingKey; 27 | 28 | @Bean 29 | public TopicExchange exchange() { 30 | return new TopicExchange(exchangeName); 31 | } 32 | 33 | @Bean 34 | public Queue queue() { 35 | return new Queue(queue); 36 | } 37 | 38 | @Bean 39 | public Binding binding() { 40 | return BindingBuilder.bind(queue()).to(exchange()).with(routingKey); 41 | } 42 | 43 | @Bean 44 | public Jackson2JsonMessageConverter messageConverter() { 45 | ObjectMapper mapper = new ObjectMapper(); 46 | return new Jackson2JsonMessageConverter(mapper); 47 | } 48 | 49 | @Bean 50 | public RabbitTemplate rabbitTemplate(final ConnectionFactory connectionFactory) { 51 | RabbitTemplate rabbitTemplate = new RabbitTemplate(connectionFactory); 52 | rabbitTemplate.setMessageConverter(messageConverter()); 53 | return rabbitTemplate; 54 | } 55 | 56 | // @Bean 57 | // SimpleMessageListenerContainer container(ConnectionFactory connectionFactory, 58 | // MessageListenerAdapter listenerAdapter) { 59 | // SimpleMessageListenerContainer container = new SimpleMessageListenerContainer(); 60 | // container.setConnectionFactory(connectionFactory); 61 | // container.setQueueNames(queue); 62 | // container.setMessageListener(listenerAdapter); 63 | // return container; 64 | // } 65 | // 66 | // @Bean 67 | // MessageListenerAdapter listenerAdapter(UserRegistrationNotification receiver) { 68 | // return new MessageListenerAdapter(receiver, "receiveMessage"); 69 | // } 70 | // 71 | public String getExchangeName() { 72 | return exchangeName; 73 | } 74 | 75 | public String getQueue() { 76 | return queue; 77 | } 78 | 79 | public String getRoutingKey() { 80 | return routingKey; 81 | } 82 | } 83 | -------------------------------------------------------------------------------- /backend/user-registration/src/main/java/com/tushar/usermanagement/exception/CustomResponse.java: -------------------------------------------------------------------------------- 1 | package com.tushar.usermanagement.exception; 2 | 3 | import java.time.LocalDateTime; 4 | 5 | import com.fasterxml.jackson.annotation.JsonFormat; 6 | 7 | public class CustomResponse { 8 | 9 | @JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "yyyy-MM-dd hh:mm:ss") 10 | private LocalDateTime timestamp; 11 | private int status; 12 | private String message; 13 | 14 | public LocalDateTime getTimestamp() { 15 | return timestamp; 16 | } 17 | 18 | public void setTimestamp(LocalDateTime timestamp) { 19 | this.timestamp = timestamp; 20 | } 21 | 22 | public int getStatus() { 23 | return status; 24 | } 25 | 26 | public void setStatus(int status) { 27 | this.status = status; 28 | } 29 | 30 | public String getMessage() { 31 | return message; 32 | } 33 | 34 | public void setMessage(String message) { 35 | this.message = message; 36 | } 37 | 38 | 39 | } 40 | -------------------------------------------------------------------------------- /backend/user-registration/src/main/java/com/tushar/usermanagement/message/UserRegistrationNotification.java: -------------------------------------------------------------------------------- 1 | package com.tushar.usermanagement.message; 2 | 3 | public class UserRegistrationNotification { 4 | 5 | private String id; 6 | private String email; 7 | private String password; 8 | 9 | public UserRegistrationNotification(String id, String email, String password) { 10 | super(); 11 | this.id = id; 12 | this.email = email; 13 | this.password = password; 14 | } 15 | 16 | public UserRegistrationNotification() { 17 | // TODO Auto-generated constructor stub 18 | } 19 | 20 | public String getId() { 21 | return id; 22 | } 23 | 24 | public void setId(String id) { 25 | this.id = id; 26 | } 27 | 28 | public String getEmail() { 29 | return email; 30 | } 31 | 32 | public void setEmail(String email) { 33 | this.email = email; 34 | } 35 | 36 | public String getPassword() { 37 | return password; 38 | } 39 | 40 | public void setPassword(String password) { 41 | this.password = password; 42 | } 43 | 44 | @Override 45 | public String toString() { 46 | return "UserRegistrationNotification [id=" + id + ", email=" + email + ", password=" + password + "]"; 47 | } 48 | 49 | 50 | } 51 | -------------------------------------------------------------------------------- /backend/user-registration/src/main/java/com/tushar/usermanagement/model/User.java: -------------------------------------------------------------------------------- 1 | package com.tushar.usermanagement.model; 2 | 3 | import org.springframework.data.annotation.Id; 4 | import org.springframework.data.mongodb.core.index.Indexed; 5 | import org.springframework.data.mongodb.core.mapping.Document; 6 | 7 | @Document(collection="User") 8 | public class User { 9 | 10 | private String id; 11 | 12 | @Indexed(unique=true) 13 | private String email; 14 | 15 | private String password; 16 | 17 | public User(String email, String password) { 18 | this.email = email; 19 | this.password = password; 20 | } 21 | 22 | public String getId() { 23 | return id; 24 | } 25 | 26 | public void setId(String id) { 27 | this.id = id; 28 | } 29 | 30 | public String getEmail() { 31 | return email; 32 | } 33 | 34 | public void setEmail(String email) { 35 | this.email = email; 36 | } 37 | 38 | public String getPassword() { 39 | return password; 40 | } 41 | 42 | public void setPassword(String password) { 43 | this.password = password; 44 | } 45 | 46 | 47 | 48 | 49 | 50 | } 51 | -------------------------------------------------------------------------------- /backend/user-registration/src/main/java/com/tushar/usermanagement/repository/UserManagementRepository.java: -------------------------------------------------------------------------------- 1 | package com.tushar.usermanagement.repository; 2 | 3 | import org.springframework.data.mongodb.repository.MongoRepository; 4 | 5 | import com.tushar.usermanagement.model.User; 6 | 7 | public interface UserManagementRepository extends MongoRepository { 8 | 9 | User findByEmail(String email); 10 | 11 | } 12 | -------------------------------------------------------------------------------- /backend/user-registration/src/main/java/com/tushar/usermanagement/request/RegistrationRequest.java: -------------------------------------------------------------------------------- 1 | package com.tushar.usermanagement.request; 2 | 3 | import javax.validation.constraints.Email; 4 | import javax.validation.constraints.NotNull; 5 | import javax.validation.constraints.Size; 6 | 7 | import org.springframework.beans.factory.config.ConfigurableBeanFactory; 8 | import org.springframework.context.annotation.Scope; 9 | 10 | @Scope(value = ConfigurableBeanFactory.SCOPE_PROTOTYPE) 11 | public class RegistrationRequest { 12 | 13 | @Email(message = "invalid email") 14 | @NotNull 15 | private String email; 16 | 17 | @NotNull 18 | @Size(min = 6, max = 10, message="password must be {min} to {max} characters long") 19 | private String password; 20 | 21 | public String getEmail() { 22 | return email; 23 | } 24 | 25 | public void setEmail(String email) { 26 | this.email = email; 27 | } 28 | 29 | public String getPassword() { 30 | return password; 31 | } 32 | 33 | public void setPassword(String password) { 34 | this.password = password; 35 | } 36 | 37 | @Override 38 | public String toString() { 39 | return "RegistrationRequest [email=" + email + ", password=" + password + "]"; 40 | } 41 | 42 | 43 | } 44 | -------------------------------------------------------------------------------- /backend/user-registration/src/main/java/com/tushar/usermanagement/resources/UserManagementController.java: -------------------------------------------------------------------------------- 1 | package com.tushar.usermanagement.resources; 2 | 3 | import java.time.LocalDateTime; 4 | import java.util.Iterator; 5 | import java.util.List; 6 | 7 | import org.springframework.amqp.rabbit.core.RabbitTemplate; 8 | import org.springframework.beans.factory.annotation.Autowired; 9 | import org.springframework.http.HttpStatus; 10 | import org.springframework.http.ResponseEntity; 11 | import org.springframework.validation.ObjectError; 12 | import org.springframework.validation.annotation.Validated; 13 | import org.springframework.web.bind.MethodArgumentNotValidException; 14 | import org.springframework.web.bind.annotation.CrossOrigin; 15 | import org.springframework.web.bind.annotation.ExceptionHandler; 16 | import org.springframework.web.bind.annotation.GetMapping; 17 | import org.springframework.web.bind.annotation.PostMapping; 18 | import org.springframework.web.bind.annotation.RequestBody; 19 | import org.springframework.web.bind.annotation.ResponseStatus; 20 | import org.springframework.web.bind.annotation.RestController; 21 | 22 | import com.mongodb.DuplicateKeyException; 23 | import com.mongodb.MongoWriteException; 24 | import com.tushar.usermanagement.config.UserRegistrationConfig; 25 | import com.tushar.usermanagement.exception.CustomResponse; 26 | import com.tushar.usermanagement.message.UserRegistrationNotification; 27 | import com.tushar.usermanagement.model.User; 28 | import com.tushar.usermanagement.request.RegistrationRequest; 29 | import com.tushar.usermanagement.service.UserManagementService; 30 | 31 | @RestController 32 | public class UserManagementController { 33 | 34 | @Autowired 35 | private UserManagementService service; 36 | 37 | @Autowired 38 | private RabbitTemplate rabbitTemplate; 39 | 40 | @Autowired 41 | private UserRegistrationConfig userRegistrationConfig; 42 | 43 | @GetMapping("/all") 44 | public List getAllUsers() { 45 | return service.findAll(); 46 | } 47 | 48 | @CrossOrigin 49 | @PostMapping("/user") 50 | public ResponseEntity registerUser(@Validated @RequestBody RegistrationRequest request) { 51 | System.out.println(request); 52 | User registeredUser = new User(request.getEmail(), request.getPassword()); 53 | service.save(registeredUser); 54 | rabbitTemplate.convertAndSend(userRegistrationConfig.getExchangeName(), userRegistrationConfig.getRoutingKey(), 55 | new UserRegistrationNotification(registeredUser.getId(), registeredUser.getEmail(), 56 | registeredUser.getPassword())); 57 | 58 | CustomResponse success = new CustomResponse(); 59 | success.setTimestamp(LocalDateTime.now()); 60 | success.setMessage("Thanks for signing up. An email has been sent to " + request.getEmail()); 61 | success.setStatus(HttpStatus.CREATED.value()); 62 | 63 | return new ResponseEntity<>(success, HttpStatus.CREATED); 64 | } 65 | 66 | @ResponseStatus(value = HttpStatus.CONFLICT, reason = "duplicate email address") 67 | @ExceptionHandler(value = { MongoWriteException.class, DuplicateKeyException.class }) 68 | public void duplicateEmailAddress() { 69 | } 70 | 71 | @ExceptionHandler(value = { MethodArgumentNotValidException.class }) 72 | public ResponseEntity invalidInput(MethodArgumentNotValidException e) { 73 | 74 | StringBuffer buffer = new StringBuffer(); 75 | for (ObjectError err : e.getBindingResult().getAllErrors()) { 76 | buffer.append(err.getDefaultMessage() + " , "); 77 | } 78 | 79 | CustomResponse errors = new CustomResponse(); 80 | errors.setTimestamp(LocalDateTime.now()); 81 | errors.setMessage(buffer.substring(0, buffer.length() - 2).toString()); 82 | errors.setStatus(HttpStatus.PRECONDITION_FAILED.value()); 83 | 84 | return new ResponseEntity<>(errors, HttpStatus.PRECONDITION_FAILED); 85 | } 86 | 87 | } 88 | -------------------------------------------------------------------------------- /backend/user-registration/src/main/java/com/tushar/usermanagement/service/UserManagementService.java: -------------------------------------------------------------------------------- 1 | package com.tushar.usermanagement.service; 2 | 3 | import com.tushar.usermanagement.repository.UserManagementRepository; 4 | import com.tushar.usermanagement.model.User; 5 | import java.util.List; 6 | 7 | import org.springframework.beans.factory.annotation.Autowired; 8 | import org.springframework.stereotype.Service; 9 | 10 | @Service 11 | public class UserManagementService { 12 | 13 | @Autowired 14 | private UserManagementRepository userManagementRepository; 15 | 16 | public void save(User user) { 17 | userManagementRepository.save(user); 18 | } 19 | 20 | public List findAll() { 21 | List user = userManagementRepository.findAll(); 22 | System.out.println(user); 23 | return user; 24 | } 25 | } 26 | -------------------------------------------------------------------------------- /backend/user-registration/src/main/resources/application.properties: -------------------------------------------------------------------------------- 1 | server.port=8080 2 | spring.application.name=user-service 3 | spring.data.mongodb.uri=mongodb://127.0.0.1:27017/admin 4 | logging.level.org.springframework.data.mongodb.core.MongoTemplate=DEBUG 5 | exchange-name=user-registration-exchange 6 | routingKey=user-registration-key 7 | queue=user-registration-queue 8 | spring.rabbitmq.port=5672 9 | logging.level.root=INFO 10 | logging.level.org.springframework=INFO 11 | eureka.client.service-url.default-zone=http://localhost:8761/eureka 12 | -------------------------------------------------------------------------------- /backend/user-registration/src/module-info.java: -------------------------------------------------------------------------------- 1 | module user.registration { 2 | exports main.java.com.tushar.usermanagement; 3 | exports main.java.com.tushar.usermanagement.service; 4 | exports main.java.com.tushar.usermanagement.exception; 5 | exports main.java.com.tushar.usermanagement.request; 6 | exports main.java.com.tushar.usermanagement.repository; 7 | exports main.java.com.tushar.usermanagement.message; 8 | exports main.java.com.tushar.usermanagement.model; 9 | exports main.java.com.tushar.usermanagement.resources; 10 | exports main.java.com.tushar.usermanagement.config; 11 | 12 | requires com.fasterxml.jackson.databind; 13 | requires jackson.annotations; 14 | requires java.validation; 15 | requires mongo.java.driver; 16 | requires spring.amqp; 17 | requires spring.beans; 18 | requires spring.boot; 19 | requires spring.boot.autoconfigure; 20 | requires spring.context; 21 | requires spring.data.commons; 22 | requires spring.data.mongodb; 23 | requires spring.rabbit; 24 | requires spring.web; 25 | } -------------------------------------------------------------------------------- /images/Error.PNG: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/tushargoel86/user-registration-using-microservices/369f5d28113bdb6a44a3d9c0f145cc9ad49ad0c4/images/Error.PNG -------------------------------------------------------------------------------- /images/Success.PNG: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/tushargoel86/user-registration-using-microservices/369f5d28113bdb6a44a3d9c0f145cc9ad49ad0c4/images/Success.PNG -------------------------------------------------------------------------------- /images/UserRegistrationForm.PNG: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/tushargoel86/user-registration-using-microservices/369f5d28113bdb6a44a3d9c0f145cc9ad49ad0c4/images/UserRegistrationForm.PNG -------------------------------------------------------------------------------- /images/diagram.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/tushargoel86/user-registration-using-microservices/369f5d28113bdb6a44a3d9c0f145cc9ad49ad0c4/images/diagram.png -------------------------------------------------------------------------------- /ui/package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "user-management", 3 | "version": "0.1.0", 4 | "private": true, 5 | "dependencies": { 6 | "eslint-plugin-react-hooks": "^2.0.1", 7 | "react": "^16.9.0", 8 | "react-dom": "^16.9.0", 9 | "react-scripts": "3.1.1", 10 | "semantic-ui-css": "^2.4.1", 11 | "semantic-ui-react": "^0.88.0" 12 | }, 13 | "scripts": { 14 | "start": "react-scripts start", 15 | "build": "react-scripts build", 16 | "test": "react-scripts test", 17 | "eject": "react-scripts eject" 18 | }, 19 | "eslintConfig": { 20 | "extends": "react-app" 21 | }, 22 | "browserslist": { 23 | "production": [ 24 | ">0.2%", 25 | "not dead", 26 | "not op_mini all" 27 | ], 28 | "development": [ 29 | "last 1 chrome version", 30 | "last 1 firefox version", 31 | "last 1 safari version" 32 | ] 33 | } 34 | } 35 | -------------------------------------------------------------------------------- /ui/public/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | Document 8 | 9 | 10 |
11 | 12 | 13 | -------------------------------------------------------------------------------- /ui/src/App.js: -------------------------------------------------------------------------------- 1 | import React from "react"; 2 | import "semantic-ui-css/semantic.min.css"; 3 | import UserRegistration from "./components/UserRegistration"; 4 | 5 | function App() { 6 | return ; 7 | } 8 | 9 | export default App; 10 | -------------------------------------------------------------------------------- /ui/src/components/Error.js: -------------------------------------------------------------------------------- 1 | import React from "react"; 2 | import { Message } from "semantic-ui-react"; 3 | 4 | export default function Error({ message }) { 5 | return ( 6 | 7 | Error 8 | 9 | {message} 10 | 11 | 12 | ); 13 | } 14 | -------------------------------------------------------------------------------- /ui/src/components/Success.js: -------------------------------------------------------------------------------- 1 | import React from "react"; 2 | import { Message } from "semantic-ui-react"; 3 | 4 | export default function Success({ message }) { 5 | return ( 6 | 7 | Success 8 | 9 | {message} 10 | 11 | 12 | ); 13 | } 14 | -------------------------------------------------------------------------------- /ui/src/components/UserRegistration.js: -------------------------------------------------------------------------------- 1 | import React, { useState } from "react"; 2 | import { Form, Grid, Container, Button } from "semantic-ui-react"; 3 | import Error from "./Error"; 4 | import Success from "./Success"; 5 | 6 | import { URL } from "../constants/Constants"; 7 | 8 | export function registerEmail(email, password, setRes) { 9 | fetch(URL + "user", { 10 | method: "POST", 11 | headers: { 12 | "Content-Type": "application/json" 13 | }, 14 | body: JSON.stringify({ email: email, password: password }) 15 | }) 16 | .then(resp => resp.json()) 17 | .then(res => { 18 | if (res.status === 201) { 19 | setRes({ errorMessage: "", successMessage: res.message }); 20 | } else { 21 | setRes({ successMessage: "", errorMessage: res.message }); 22 | } 23 | }) 24 | .catch(err => setRes({ successMessage: "", errorMessage: err.message })); 25 | } 26 | 27 | export default function UserRegistration() { 28 | const [email, setEmail] = useState(""); 29 | const [password, setPassword] = useState(""); 30 | const [res, setRes] = useState({ errorMessage: "", successMessage: "" }); 31 | 32 | function handleSubmit(e) { 33 | e.preventDefault(); 34 | registerEmail(email, password, setRes); 35 | } 36 | 37 | return ( 38 | 39 | 40 | 41 | 42 |
43 | setEmail(e.target.value)} 47 | value={email} 48 | /> 49 | setPassword(e.target.value)} 53 | value={password} 54 | type="password" 55 | /> 56 | 57 | 58 | {res.errorMessage ? : null} 59 | {res.successMessage ? ( 60 | 61 | ) : null} 62 |
63 | 64 | 65 | 66 | ); 67 | } 68 | 69 | -------------------------------------------------------------------------------- /ui/src/constants/Constants.js: -------------------------------------------------------------------------------- 1 | export const URL = 'http://localhost:8765/user-service/'; 2 | -------------------------------------------------------------------------------- /ui/src/index.js: -------------------------------------------------------------------------------- 1 | import React from "react"; 2 | import ReactDOM from "react-dom"; 3 | import App from "./App"; 4 | import * as serviceWorker from "./serviceWorker"; 5 | 6 | ReactDOM.render(, document.getElementById("root")); 7 | 8 | // If you want your app to work offline and load faster, you can change 9 | // unregister() to register() below. Note this comes with some pitfalls. 10 | // Learn more about service workers: https://bit.ly/CRA-PWA 11 | serviceWorker.unregister(); 12 | -------------------------------------------------------------------------------- /ui/src/serviceWorker.js: -------------------------------------------------------------------------------- 1 | // This optional code is used to register a service worker. 2 | // register() is not called by default. 3 | 4 | // This lets the app load faster on subsequent visits in production, and gives 5 | // it offline capabilities. However, it also means that developers (and users) 6 | // will only see deployed updates on subsequent visits to a page, after all the 7 | // existing tabs open on the page have been closed, since previously cached 8 | // resources are updated in the background. 9 | 10 | // To learn more about the benefits of this model and instructions on how to 11 | // opt-in, read https://bit.ly/CRA-PWA 12 | 13 | const isLocalhost = Boolean( 14 | window.location.hostname === 'localhost' || 15 | // [::1] is the IPv6 localhost address. 16 | window.location.hostname === '[::1]' || 17 | // 127.0.0.1/8 is considered localhost for IPv4. 18 | window.location.hostname.match( 19 | /^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/ 20 | ) 21 | ); 22 | 23 | export function register(config) { 24 | if (process.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) { 25 | // The URL constructor is available in all browsers that support SW. 26 | const publicUrl = new URL(process.env.PUBLIC_URL, window.location.href); 27 | if (publicUrl.origin !== window.location.origin) { 28 | // Our service worker won't work if PUBLIC_URL is on a different origin 29 | // from what our page is served on. This might happen if a CDN is used to 30 | // serve assets; see https://github.com/facebook/create-react-app/issues/2374 31 | return; 32 | } 33 | 34 | window.addEventListener('load', () => { 35 | const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`; 36 | 37 | if (isLocalhost) { 38 | // This is running on localhost. Let's check if a service worker still exists or not. 39 | checkValidServiceWorker(swUrl, config); 40 | 41 | // Add some additional logging to localhost, pointing developers to the 42 | // service worker/PWA documentation. 43 | navigator.serviceWorker.ready.then(() => { 44 | console.log( 45 | 'This web app is being served cache-first by a service ' + 46 | 'worker. To learn more, visit https://bit.ly/CRA-PWA' 47 | ); 48 | }); 49 | } else { 50 | // Is not localhost. Just register service worker 51 | registerValidSW(swUrl, config); 52 | } 53 | }); 54 | } 55 | } 56 | 57 | function registerValidSW(swUrl, config) { 58 | navigator.serviceWorker 59 | .register(swUrl) 60 | .then(registration => { 61 | registration.onupdatefound = () => { 62 | const installingWorker = registration.installing; 63 | if (installingWorker == null) { 64 | return; 65 | } 66 | installingWorker.onstatechange = () => { 67 | if (installingWorker.state === 'installed') { 68 | if (navigator.serviceWorker.controller) { 69 | // At this point, the updated precached content has been fetched, 70 | // but the previous service worker will still serve the older 71 | // content until all client tabs are closed. 72 | console.log( 73 | 'New content is available and will be used when all ' + 74 | 'tabs for this page are closed. See https://bit.ly/CRA-PWA.' 75 | ); 76 | 77 | // Execute callback 78 | if (config && config.onUpdate) { 79 | config.onUpdate(registration); 80 | } 81 | } else { 82 | // At this point, everything has been precached. 83 | // It's the perfect time to display a 84 | // "Content is cached for offline use." message. 85 | console.log('Content is cached for offline use.'); 86 | 87 | // Execute callback 88 | if (config && config.onSuccess) { 89 | config.onSuccess(registration); 90 | } 91 | } 92 | } 93 | }; 94 | }; 95 | }) 96 | .catch(error => { 97 | console.error('Error during service worker registration:', error); 98 | }); 99 | } 100 | 101 | function checkValidServiceWorker(swUrl, config) { 102 | // Check if the service worker can be found. If it can't reload the page. 103 | fetch(swUrl) 104 | .then(response => { 105 | // Ensure service worker exists, and that we really are getting a JS file. 106 | const contentType = response.headers.get('content-type'); 107 | if ( 108 | response.status === 404 || 109 | (contentType != null && contentType.indexOf('javascript') === -1) 110 | ) { 111 | // No service worker found. Probably a different app. Reload the page. 112 | navigator.serviceWorker.ready.then(registration => { 113 | registration.unregister().then(() => { 114 | window.location.reload(); 115 | }); 116 | }); 117 | } else { 118 | // Service worker found. Proceed as normal. 119 | registerValidSW(swUrl, config); 120 | } 121 | }) 122 | .catch(() => { 123 | console.log( 124 | 'No internet connection found. App is running in offline mode.' 125 | ); 126 | }); 127 | } 128 | 129 | export function unregister() { 130 | if ('serviceWorker' in navigator) { 131 | navigator.serviceWorker.ready.then(registration => { 132 | registration.unregister(); 133 | }); 134 | } 135 | } 136 | --------------------------------------------------------------------------------