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[JAVA-15377] Update code for Graphql SPQR article

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This commit is contained in:
Haroon Khan
2022-10-15 17:41:36 +01:00
parent 33cb4f90e0
commit 34b8cf00e9
20 changed files with 322 additions and 177 deletions
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3
graphql-modules/graphql-spqr-boot-starter/README.md Normal file
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@@ -0,0 +1,3 @@
### Relevant Articles:
- [Getting Started With GraphQL SPQR and Spring Boot](https://www.baeldung.com/spring-boot-graphql-spqr)

42
graphql-modules/graphql-spqr-boot-starter/pom.xml Normal file
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@@ -0,0 +1,42 @@
<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>graphql-spqr-boot-starter</artifactId>
<version>1.0</version>
<name>graphql-spqr-boot-starter</name>
<parent>
<groupId>com.baeldung.graphql</groupId>
<artifactId>graphql-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</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-starter-webflux</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.leangen.graphql</groupId>
<artifactId>graphql-spqr-spring-boot-starter</artifactId>
<version>${graphql-spqr-spring-boot-starter-version}</version>
</dependency>
</dependencies>
<properties>
<graphql-spqr-spring-boot-starter-version>0.0.6</graphql-spqr-spring-boot-starter-version>
</properties>
</project>

4
graphql-modules/graphql-spqr/src/main/java/com/baeldung/SpringBootApp.java → graphql-modules/graphql-spqr-boot-starter/src/main/java/com/baeldung/SpqrBootStarterApp.java
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@@ -4,8 +4,8 @@ import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class SpringBootApp {
public class SpqrBootStarterApp {
public static void main(String[] args) {
SpringApplication.run(SpringBootApp.class, args);
SpringApplication.run(SpqrBootStarterApp.class, args);
}
}

57
graphql-modules/graphql-spqr-boot-starter/src/main/java/com/baeldung/spqr/Book.java Normal file
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@@ -0,0 +1,57 @@
package com.baeldung.spqr;
import java.util.Objects;
public class Book {
private Integer id;
private String author;
private String title;
public Book(Integer id, String author, String title) {
this.id = id;
this.author = author;
this.title = title;
}
public Book() {
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getAuthor() {
return author;
}
public void setAuthor(String author) {
this.author = author;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
@Override
public boolean equals(Object o) {
if (this == o)
return true;
if (o == null || getClass() != o.getClass())
return false;
Book book = (Book) o;
return id.equals(book.id);
}
@Override
public int hashCode() {
return Objects.hash(id);
}
}

59
graphql-modules/graphql-spqr-boot-starter/src/main/java/com/baeldung/spqr/BookService.java Normal file
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@@ -0,0 +1,59 @@
package com.baeldung.spqr;
import io.leangen.graphql.annotations.GraphQLArgument;
import io.leangen.graphql.annotations.GraphQLMutation;
import io.leangen.graphql.annotations.GraphQLQuery;
import io.leangen.graphql.spqr.spring.annotations.GraphQLApi;
import org.springframework.stereotype.Service;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Objects;
import java.util.Set;
@Service
@GraphQLApi
public class BookService implements IBookService {
private static final Set<Book> BOOKS_DATA = initializeData();
@GraphQLQuery(name = "getBookWithTitle")
public Book getBookWithTitle(@GraphQLArgument(name = "title") String title) {
return BOOKS_DATA.stream()
.filter(book -> book.getTitle().equals(title))
.findFirst()
.orElse(null);
}
@GraphQLQuery(name = "getAllBooks", description = "Get all books")
public List<Book> getAllBooks() {
return new ArrayList<>(BOOKS_DATA);
}
@GraphQLMutation(name = "addBook")
public Book addBook(@GraphQLArgument(name = "newBook") Book book) {
BOOKS_DATA.add(book);
return book;
}
@GraphQLMutation(name = "updateBook")
public Book updateBook(@GraphQLArgument(name = "modifiedBook") Book book) {
BOOKS_DATA.removeIf(b -> Objects.equals(b.getId(), book.getId()));
BOOKS_DATA.add(book);
return book;
}
@GraphQLMutation(name = "deleteBook")
public boolean deleteBook(@GraphQLArgument(name = "book") Book book) {
return BOOKS_DATA.remove(book);
}
private static Set<Book> initializeData() {
Book book = new Book(1, "J.R.R. Tolkien", "The Lord of the Rings");
Set<Book> books = new HashSet<>();
books.add(book);
return books;
}
}

15
graphql-modules/graphql-spqr-boot-starter/src/main/java/com/baeldung/spqr/IBookService.java Normal file
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@@ -0,0 +1,15 @@
package com.baeldung.spqr;
import java.util.List;
public interface IBookService {
Book getBookWithTitle(String title);
List<Book> getAllBooks();
Book addBook(Book book);
Book updateBook(Book book);
boolean deleteBook(Book book);
}

62
graphql-modules/graphql-spqr-boot-starter/src/test/java/com/baeldung/spqr/SpqrBootStarterAppIntegrationTest.java Normal file
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@@ -0,0 +1,62 @@
package com.baeldung.spqr;
import com.baeldung.SpqrBootStarterApp;
import org.json.JSONException;
import org.json.JSONObject;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.http.MediaType;
import org.springframework.test.web.reactive.server.WebTestClient;
import reactor.core.publisher.Mono;
import static org.springframework.boot.test.context.SpringBootTest.WebEnvironment.RANDOM_PORT;
@SpringBootTest(webEnvironment = RANDOM_PORT, classes = SpqrBootStarterApp.class)
class SpqrBootStarterAppIntegrationTest {
private static final String GRAPHQL_PATH = "/graphql";
@Autowired
private WebTestClient webTestClient;
@Test
void whenGetAllBooks_thenValidResponseReturned() {
String getAllBooksQuery = "{getAllBooks{ id title author }}";
webTestClient.post()
.uri(GRAPHQL_PATH)
.contentType(MediaType.APPLICATION_JSON)
.body(Mono.just(toJSON(getAllBooksQuery)), String.class)
.exchange()
.expectStatus().isOk()
.expectBody()
.jsonPath("$.data.getAllBooks").isNotEmpty();
}
@Test
void whenAddBook_thenValidResponseReturned() {
String addBookMutation = "mutation { addBook(newBook: {id: 123, author: \"J. K. Rowling\", "
+ "title: \"Harry Potter and Philosopher's Stone\"}) { id author title } }";
webTestClient.post()
.uri(GRAPHQL_PATH)
.contentType(MediaType.APPLICATION_JSON)
.body(Mono.just(toJSON(addBookMutation)), String.class)
.exchange()
.expectStatus().isOk()
.expectBody()
.jsonPath("$.data.addBook.id").isEqualTo("123")
.jsonPath("$.data.addBook.title").isEqualTo("Harry Potter and Philosopher's Stone")
.jsonPath("$.data.addBook.author").isEqualTo("J. K. Rowling");
}
private static String toJSON(String query) {
try {
return new JSONObject().put("query", query).toString();
} catch (JSONException e) {
throw new RuntimeException(e);
}
}
}

13
graphql-modules/graphql-spqr-boot-starter/src/test/java/com/baeldung/spqr/SpringContextTest.java Normal file
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@@ -0,0 +1,13 @@
package com.baeldung.spqr;
import com.baeldung.SpqrBootStarterApp;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
@SpringBootTest(classes = SpqrBootStarterApp.class)
class SpringContextTest {
@Test
void whenSpringContextIsBootstrapped_thenNoExceptions() {
}
}

30
graphql-modules/graphql-spqr/pom.xml
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@@ -13,19 +13,6 @@
<version>1.0.0-SNAPSHOT</version>
</parent>
<dependencyManagement>
<dependencies>
<dependency>
<!-- Boot version compatible with spqr-boot-starter -->
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>2.6.4</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
@@ -33,13 +20,24 @@
</dependency>
<dependency>
<groupId>io.leangen.graphql</groupId>
<artifactId>graphql-spqr-spring-boot-starter</artifactId>
<version>${graphql-spqr-spring-boot-starter-version}</version>
<artifactId>spqr</artifactId>
<version>${spqr-version}</version>
</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-starter-webflux</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<properties>
<graphql-spqr-spring-boot-starter-version>0.0.6</graphql-spqr-spring-boot-starter-version>
<spqr-version>0.11.2</spqr-version>
</properties>
</project>

42
graphql-modules/graphql-spqr/src/main/java/com/baeldung/spqr/BookResolver.java Normal file
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@@ -0,0 +1,42 @@
package com.baeldung.spqr;
import io.leangen.graphql.annotations.GraphQLArgument;
import io.leangen.graphql.annotations.GraphQLMutation;
import io.leangen.graphql.annotations.GraphQLQuery;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Profile;
import org.springframework.stereotype.Service;
import java.util.List;
@Service
public class BookResolver {
@Autowired
IBookService bookService;
@GraphQLQuery(name = "getBookWithTitle")
public Book getBookWithTitle(@GraphQLArgument(name = "title") String title) {
return bookService.getBookWithTitle(title);
}
@GraphQLQuery(name = "getAllBooks", description = "Get all books")
public List<Book> getAllBooks() {
return bookService.getAllBooks();
}
@GraphQLMutation(name = "addBook")
public Book addBook(@GraphQLArgument(name = "newBook") Book book) {
return bookService.addBook(book);
}
@GraphQLMutation(name = "updateBook")
public Book updateBook(@GraphQLArgument(name = "modifiedBook") Book book) {
return bookService.updateBook(book);
}
@GraphQLMutation(name = "deleteBook")
public void deleteBook(@GraphQLArgument(name = "book") Book book) {
bookService.deleteBook(book);
}
}

52
graphql-modules/graphql-spqr/src/main/java/com/baeldung/spqr/BookService.java
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@@ -1,51 +1,53 @@
package com.baeldung.spqr;
import io.leangen.graphql.annotations.GraphQLArgument;
import io.leangen.graphql.annotations.GraphQLMutation;
import io.leangen.graphql.annotations.GraphQLQuery;
import io.leangen.graphql.spqr.spring.annotations.GraphQLApi;
import org.springframework.stereotype.Service;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Objects;
import java.util.Set;
import java.util.stream.Collectors;
@Service
@GraphQLApi
public class BookService implements IBookService {
Set<Book> books = new HashSet<>();
private static final Set<Book> BOOKS_DATA = initializeData();
@GraphQLQuery(name = "getBookWithTitle")
public Book getBookWithTitle(@GraphQLArgument(name = "title") String title) {
return books.stream()
.filter(book -> book.getTitle()
.equals(title))
@Override
public Book getBookWithTitle(String title) {
return BOOKS_DATA.stream()
.filter(book -> book.getTitle().equals(title))
.findFirst()
.orElse(null);
}
@GraphQLQuery(name = "getAllBooks", description = "Get all books")
@Override
public List<Book> getAllBooks() {
return books.stream().collect(Collectors.toList());
return new ArrayList<>(BOOKS_DATA);
}
@GraphQLMutation(name = "addBook")
public Book addBook(@GraphQLArgument(name = "newBook") Book book) {
books.add(book);
@Override
public Book addBook(Book book) {
BOOKS_DATA.add(book);
return book;
}
@GraphQLMutation(name = "updateBook")
public Book updateBook(@GraphQLArgument(name = "modifiedBook") Book book) {
books.remove(book);
books.add(book);
@Override
public Book updateBook(Book book) {
BOOKS_DATA.removeIf(b -> Objects.equals(b.getId(), book.getId()));
BOOKS_DATA.add(book);
return book;
}
@GraphQLMutation(name = "deleteBook")
public boolean deleteBook(@GraphQLArgument(name = "book") Book book) {
return books.remove(book);
@Override
public boolean deleteBook(Book book) {
return BOOKS_DATA.remove(book);
}
}
private static Set<Book> initializeData() {
Book book = new Book(1, "J.R.R. Tolkien", "The Lord of the Rings");
Set<Book> books = new HashSet<>();
books.add(book);
return books;
}
}

36
graphql-modules/graphql-spqr/src/main/java/com/baeldung/spqr/GraphqlController.java Normal file
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@@ -0,0 +1,36 @@
package com.baeldung.spqr;
import graphql.ExecutionResult;
import graphql.GraphQL;
import graphql.GraphQLException;
import graphql.schema.GraphQLSchema;
import io.leangen.graphql.GraphQLSchemaGenerator;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Profile;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;
import javax.servlet.http.HttpServletRequest;
import java.util.Map;
@RestController
public class GraphqlController {
private final GraphQL graphQL;
@Autowired
public GraphqlController(BookResolver bookResolver) {
GraphQLSchema schema = new GraphQLSchemaGenerator()
.withBasePackages("com.baeldung")
.withOperationsFromSingleton(bookResolver)
.generate();
this.graphQL = new GraphQL.Builder(schema).build();
}
@PostMapping(value = "/graphql")
public Map<String, Object> execute(@RequestBody Map<String, String> request, HttpServletRequest raw) throws GraphQLException {
ExecutionResult result = graphQL.execute(request.get("query"));
return result.getData();
}
}

2
graphql-modules/graphql-spqr/src/main/java/com/baeldung/spqr/IBookService.java
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@@ -12,4 +12,4 @@ public interface IBookService {
Book updateBook(Book book);
boolean deleteBook(Book book);
}
}

13
graphql-modules/graphql-spqr/src/main/java/com/baeldung/spqr/SpqrApp.java Normal file
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@@ -0,0 +1,13 @@
package com.baeldung.spqr;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class SpqrApp {
public static void main(String[] args) {
SpringApplication.run(SpqrApp.class, args);
}
}

61
graphql-modules/graphql-spqr/src/test/java/com/baeldung/spqr/SpqrAppIntegrationTest.java Normal file
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@@ -0,0 +1,61 @@
package com.baeldung.spqr;
import org.json.JSONException;
import org.json.JSONObject;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.http.MediaType;
import org.springframework.test.web.reactive.server.WebTestClient;
import reactor.core.publisher.Mono;
import static org.springframework.boot.test.context.SpringBootTest.WebEnvironment.RANDOM_PORT;
@SpringBootTest(webEnvironment = RANDOM_PORT, classes = SpqrApp.class)
class SpqrAppIntegrationTest {
private static final String GRAPHQL_PATH = "/graphql";
@Autowired
private WebTestClient webTestClient;
@Test
void whenGetAllBooks_thenValidResponseReturned() {
String getAllBooksQuery = "{getAllBooks{ id title author }}";
webTestClient.post()
.uri(GRAPHQL_PATH)
.contentType(MediaType.APPLICATION_JSON)
.body(Mono.just(toJSON(getAllBooksQuery)), String.class)
.exchange()
.expectStatus().isOk()
.expectBody()
.jsonPath("$.getAllBooks").isNotEmpty();
}
@Test
void whenAddBook_thenValidResponseReturned() {
String addBookMutation = "mutation { addBook(newBook: {id: 123, author: \"J. K. Rowling\", "
+ "title: \"Harry Potter and Philosopher's Stone\"}) { id author title } }";
webTestClient.post()
.uri(GRAPHQL_PATH)
.contentType(MediaType.APPLICATION_JSON)
.body(Mono.just(toJSON(addBookMutation)), String.class)
.exchange()
.expectStatus().isOk()
.expectBody()
.jsonPath("$.addBook.id").isEqualTo("123")
.jsonPath("$.addBook.title").isEqualTo("Harry Potter and Philosopher's Stone")
.jsonPath("$.addBook.author").isEqualTo("J. K. Rowling");
}
private static String toJSON(String query) {
try {
return new JSONObject().put("query", query).toString();
} catch (JSONException e) {
throw new RuntimeException(e);
}
}
}

12
graphql-modules/graphql-spqr/src/test/java/com/baeldung/spqr/SpringContextTest.java Normal file
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@@ -0,0 +1,12 @@
package com.baeldung.spqr;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
@SpringBootTest(classes = SpqrApp.class)
class SpringContextTest {
@Test
void whenSpringContextIsBootstrapped_thenNoExceptions() {
}
}

19
graphql-modules/pom.xml
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@@ -11,15 +11,28 @@
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-boot-2</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../parent-boot-2</relativePath>
<artifactId>parent-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<dependencyManagement>
<dependencies>
<dependency>
<!-- Boot version compatible with spqr-boot-starter -->
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>2.6.4</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<modules>
<module>graphql-dgs</module>
<module>graphql-java</module>
<module>graphql-spqr</module>
<module>graphql-spqr-boot-starter</module>
</modules>
</project>