Java REST API Framework Comparison - PWX 2021
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Use Spring Boot! No, use Micronaut!! Nooooo, Quarkus is the best!!! There's a lot of developers praising the hottest, and fastest, Java REST frameworks: Micronaut, Quarkus, and Spring Boot. In this session, you'll learn how to do the following with each framework: ✅ Build a REST API ✅ Secure your API with OAuth 2.0 ✅ Optimize for production with Docker and GraalVM I'll also share some performance numbers and pretty graphs to compare community metrics. Related blog post: https://developer.okta.com/blog/2021/06/18/native-java-framework-comparison
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Java REST API Framework Comparison - PWX 2021
- 1. Matt Raible | @mraible December 7, 2021 Java REST API Comparison Micronaut, Quarkus, and Spring Boot Photo by Evi T. on Unsplash
- 2. @mraible Who is Matt Raible? Father, Husband, Skier, Mountain Biker, Whitewater Rafter Bus Lover Web Developer and Java Champion Okta Developer Advocate Blogger on raibledesigns.com and developer.okta.com/blog @mraible
- 7. @mraible Today’s Agenda Why Java? Build { REST, GraphQL } APIs with Java Secure your APIs with OAuth 2.1 Build with Docker Go Native with GraalVM https://unsplash.com/photos/JsTmUnHdVYQ
- 8. @mraible Why Java? 25+ Years of use, abuse, and improvements Open Source code is available; many popular open source frameworks and tools Hugely Popular and widely used by many enterprises and web-scale companies
- 9. @mraible Download the JDK from OpenJDK https://jdk.java.net/17 Or from Adoptium https://adoptium.net Get Started with Java 17
- 10. @mraible Get Started with Java 17 Better yet, use SDKMAN! curl -s https://get.sdkman.io | bash 
 sdk install java 17-open
- 11. Java Releases and Features
- 14. @mraible sdk install micronaut mn create-app com.okta.rest.app -b maven -f security-jwt Get Started with Micronaut
- 16. package com.okta.rest.controller; import io.micronaut.http.MediaType; import io.micronaut.http.annotation.Controller; import io.micronaut.http.annotation.Get; import io.micronaut.http.annotation.Produces; import io.micronaut.security.annotation.Secured; import io.micronaut.security.rules.SecurityRule; import java.security.Principal; @Controller("/hello") public class HelloController { @Get @Secured(SecurityRule.IS_AUTHENTICATED) @Produces(MediaType.TEXT_PLAIN) public String hello(Principal principal) { return "Hello, " + principal.getName() + "!"; } }
- 19. Install HTTPie (a better cURL) $ <tool> install httpie https://httpie.org
- 20. Test Micronaut with HTTPie https://httpie.org mvn mn:run http :8080/hello TOKEN=eyJraWQiOiJxOE1QMjFNNHZCVmxOSkxGbFFWNlN... http :8080/hello Authorization:"Bearer $TOKEN"
- 21. Verify Micronaut API with HTTPie
- 22. @mraible Get Started with Quarkus mvn io.quarkus:quarkus-maven-plugin:2.5.1.Final:create -DprojectGroupId=com.okta.rest -DprojectArtifactId=quarkus -DclassName="com.okta.rest.quarkus.HelloResource" -Dpath="/hello" -Dextensions="smallrye-jwt,resteasy-reactive"
- 24. package com.okta.rest.quarkus; import io.quarkus.security.Authenticated; import javax.ws.rs.GET; import javax.ws.rs.Path; import javax.ws.rs.Produces; import javax.ws.rs.core.Context; import javax.ws.rs.core.MediaType; import javax.ws.rs.core.SecurityContext; import java.security.Principal; @Path("/hello") public class HelloResource { @GET @Path("/") @Authenticated @Produces(MediaType.TEXT_PLAIN) public String hello(@Context SecurityContext context) { Principal userPrincipal = context.getUserPrincipal(); return "Hello, " + userPrincipal.getName() + "!"; } }
- 28. Test Quarkus with HTTPie https://httpie.org mvn quarkus:dev http :8080/hello TOKEN=eyJraWQiOiJxOE1QMjFNNHZCVmxOSkxGbFFWNlN... http :8080/hello Authorization:"Bearer $TOKEN"
- 29. Verify Quarkus API with HTTPie
- 30. @mraible Get Started with Spring Boot http https://start.spring.io/starter.zip dependencies==web,oauth2-resource-server,native packageName==com.okta.rest name==spring-boot type==maven-project baseDir==spring-boot | tar -xzvf -
- 32. package com.okta.rest.controller; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RestController; import java.security.Principal; @RestController public class HelloController { @GetMapping("/hello") public String hello(Principal principal) { return "Hello, " + principal.getName() + "!"; } }
- 33. Spring Security OAuth 2.0 Resource Server https://docs.spring.io/spring-security/site/docs/current/reference/html5/#oauth2resourceserver okta.oauth2.issuer=https://dev-133337.okta.com/ oauth2/default
- 34. Test Spring Boot with HTTPie https://httpie.org mvn spring-boot:run http :8080/hello TOKEN=eyJraWQiOiJxOE1QMjFNNHZCVmxOSkxGbFFWNlN... http :8080/hello Authorization:"Bearer $TOKEN"
- 35. Verify Spring Boot API with HTTPie
- 36. @mraible Startup Performance Milliseconds 0 750 1500 2250 3000 Micronaut Quarkus Spring Boot 1,497 568 573 1,122 1,918 456 Dev Startup (mvn) Packaged Startup (java -jar)
- 37. @mraible Build GraphQL APIs with Java Why GraphQL? Does your favorite framework support GraphQL? Micronaut https://micronaut-projects.github.io/micronaut-graphql/latest/guide Quarkus https://quarkus.io/guides/smallrye-graphql Spring Boot https://spring.io/projects/spring-graphql
- 38. @mraible Secure your API with OAuth 2.0 https://aaronparecki.com/2019/12/12/21/its-time-for-oauth-2-dot-1
- 39. @mraible Secure your API with OAuth 2.1 https://oauth.net/2.1 PKCE is required for all clients using the authorization code flow Redirect URIs must be compared using exact string matching The Implicit grant is omitted from this specification The Resource Owner Password Credentials grant is omitted from this specification Bearer token usage omits the use of bearer tokens in the query string of URIs Refresh tokens for public clients must either be sender-constrained or one-time use
- 40. @mraible Authenticate with OpenID Connect (OIDC) What is OpenID Connect? Does your favorite framework support OIDC authentication? Micronaut https://guides.micronaut.io/latest/micronaut-oauth2-okta.html Quarkus https://quarkus.io/guides/security-openid-connect-web-authentication Spring Boot https://docs.spring.io/spring-security/site/docs/current/reference/html5/#oauth2login
- 42. @mraible Build with Docker Create a Dockerfile 
 FROM openjdk:17-alpine ARG JAR_FILE=target/*.jar COPY ${JAR_FILE} app.jar EXPOSE 8080 ENTRYPOINT ["java","-jar","/app.jar"]
- 43. @mraible Build with Docker Build your image docker build -t <tag-name> . Run your image docker run -it -p8080:8080 <tag-name>
- 44. @mraible Build with Docker: Jib Get Jibby with it! mvn verify jib:build Or build directly to your Docker daemon mvn verify jib:dockerBuild https://github.com/GoogleContainerTools/jib
- 45. @mraible Build with Docker Micronaut uses Jib, but you must configure plugins Quarkus generates three Docker-related files Dockerfile.jvm Dockerfile.legacy-jar Dockerfile.native Dockerfile.native-distroless Quarkus + Jib mvn quarkus:add-extension -Dextensions="container-image-jib"
- 46. @mraible Build with Docker Spring Boot 2.3+ has built-in support mvn spring-boot:build-image Uses layered JARs for for faster builds dependencies snapshot-dependencies resources application https://spring.io/blog/2020/01/27/creating-docker-images-with-spring-boot-2-3-0-m1
- 47. @mraible Use Micronaut CLI mn create-app ... mvn package -Dpackaging=native-image gradle nativeImage gradle dockerBuildNative Go Native with GraalVM and Micronaut https://docs.micronaut.io/latest/guide/#graal
- 48. @mraible Go Native with GraalVM and Quarkus Create an executable without GraalVM installed mvn package -Pnative -Dquarkus.native.container-build=true Then, build the image docker build -f src/main/docker/Dockerfile.native -t <tag-name> . And run it docker run -it -p8080:8080 <tag-name> https://quarkus.io/guides/building-native-image
- 49. @mraible Use start.spring.io to get plugins and profiles <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <configuration> <classifier>${repackage.classifier}</classifier> <image> <builder>paketobuildpacks/builder:tiny</builder> <env> <BP_NATIVE_IMAGE>true</BP_NATIVE_IMAGE> </env> </image> </configuration> </plugin> <plugin> <groupId>org.springframework.experimental</groupId> <artifactId>spring-aot-maven-plugin</artifactId> <version>${spring-native.version}</version> <executions> Go Native with GraalVM and Spring Boot
- 50. @mraible Go Native with GraalVM and Spring Boot Add milestone repositories to your pom.xml <repositories> <repository> <id>spring-milestones</id> <name>Spring Milestones</name> <url>https://repo.spring.io/milestone</url> </repository> </repositories> <pluginRepositories> <pluginRepository> <id>spring-milestones</id> <name>Spring Milestones</name> <url>https://repo.spring.io/milestone</url> </pluginRepository> </pluginRepositories>
- 51. @mraible Go Native with GraalVM and Spring Boot Add Spring Native dependency <dependency> <groupId>org.springframework.experimental</groupId> <artifactId>spring-native</artifactId> <version>0.11.0-RC1</version> </dependency> Build the native application mvn spring-boot:build-image
- 52. @mraible How we fixed the Okta Spring Boot Starter https://youtu.be/8vY-9tXlCW4
- 53. @mraible Native Startup Performance Milliseconds 0 25 50 75 100 December 2, 2021 61.8 18.4 19.8 Micronaut Quarkus Spring Boot
- 54. @mraible Native Memory Used (MB) Milliseconds 0 25 50 75 100 December 2, 2021 58 32 78 Micronaut Quarkus Spring Boot
- 55. @mraible Tests Run on a 2019 MacBook Pro
- 57. Community
- 58. @mraible Stack Overflow Tags 0 32500 65000 97500 130000 December 2, 2021 61 114,122 2,171 1,242 Micronaut Quarkus Spring Boot Helidon
- 59. @mraible GitHub Stars 0 18750 37500 56250 75000 December 3, 2021 2,500 58,500 8,900 5,100 Micronaut Quarkus Spring Boot Helidon
- 61. @mraible Jobs on Indeed (US) 0 3250 6500 9750 13000 December 3, 2021 11,333 198 166 Micronaut Quarkus Spring Boot
- 62. @mraible Twitter Followers 0 25000 50000 75000 100000 December 3, 2021 3,322 80,200 13,100 10,900 Micronaut Quarkus Spring Boot Helidon
- 63. Hot Web Frameworks https://hotframeworks.com
- 64. @mraible JHipster Support 🤓 Micronaut Blueprint - github.com/jhipster/generator-jhipster-micronaut - v1.0.2, 18 releases, 16 contributors, 382 commits // TODO: Micronaut 3, Reactive, Microservices, GraalVM native images Quarkus Blueprint - github.com/jhipster/generator-jhipster-quarkus - v2.0.0-beta.1, 6 releases, 16 contributors, 550 commits // TODO: Quarkus 2.3, Dev Services, Reactive, Microservices
- 68. Summary of latest update https://twitter.com/mraible/status/1466812781454368778
- 69. @mraible Action!