diff --git a/spring-webflux/.gitignore b/spring-webflux/.gitignore new file mode 100644 index 0000000..549e00a --- /dev/null +++ b/spring-webflux/.gitignore @@ -0,0 +1,33 @@ +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/ diff --git a/spring-webflux/.mvn/wrapper/maven-wrapper.jar b/spring-webflux/.mvn/wrapper/maven-wrapper.jar new file mode 100644 index 0000000..c1dd12f Binary files /dev/null and b/spring-webflux/.mvn/wrapper/maven-wrapper.jar differ diff --git a/spring-webflux/.mvn/wrapper/maven-wrapper.properties b/spring-webflux/.mvn/wrapper/maven-wrapper.properties new file mode 100644 index 0000000..b7cb93e --- /dev/null +++ b/spring-webflux/.mvn/wrapper/maven-wrapper.properties @@ -0,0 +1,2 @@ +distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.4/apache-maven-3.8.4-bin.zip +wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar diff --git a/spring-webflux/README.md b/spring-webflux/README.md new file mode 100644 index 0000000..10c36cb --- /dev/null +++ b/spring-webflux/README.md @@ -0,0 +1,4 @@ +# Related Blog Posts + +* [Getting Started with Spring WebFlux](https://reflectoring.io/getting-started-with-spring-webflux/) + diff --git a/spring-webflux/mvnw b/spring-webflux/mvnw new file mode 100644 index 0000000..8a8fb22 --- /dev/null +++ b/spring-webflux/mvnw @@ -0,0 +1,316 @@ +#!/bin/sh +# ---------------------------------------------------------------------------- +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance +# with the License. You may obtain a copy of the License at +# +# https://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, +# software distributed under the License is distributed on an +# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +# KIND, either express or implied. See the License for the +# specific language governing permissions and limitations +# under the License. +# ---------------------------------------------------------------------------- + +# ---------------------------------------------------------------------------- +# Maven Start Up Batch script +# +# Required ENV vars: +# ------------------ +# JAVA_HOME - location of a JDK home dir +# +# Optional ENV vars +# ----------------- +# M2_HOME - location of maven2's installed home dir +# MAVEN_OPTS - parameters passed to the Java VM when running Maven +# e.g. to debug Maven itself, use +# set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 +# MAVEN_SKIP_RC - flag to disable loading of mavenrc files +# ---------------------------------------------------------------------------- + +if [ -z "$MAVEN_SKIP_RC" ] ; then + + if [ -f /usr/local/etc/mavenrc ] ; then + . /usr/local/etc/mavenrc + fi + + if [ -f /etc/mavenrc ] ; then + . /etc/mavenrc + fi + + if [ -f "$HOME/.mavenrc" ] ; then + . "$HOME/.mavenrc" + fi + +fi + +# OS specific support. $var _must_ be set to either true or false. +cygwin=false; +darwin=false; +mingw=false +case "`uname`" in + CYGWIN*) cygwin=true ;; + MINGW*) mingw=true;; + Darwin*) darwin=true + # Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home + # See https://developer.apple.com/library/mac/qa/qa1170/_index.html + if [ -z "$JAVA_HOME" ]; then + if [ -x "/usr/libexec/java_home" ]; then + export JAVA_HOME="`/usr/libexec/java_home`" + else + export JAVA_HOME="/Library/Java/Home" + fi + fi + ;; +esac + +if [ -z "$JAVA_HOME" ] ; then + if [ -r /etc/gentoo-release ] ; then + JAVA_HOME=`java-config --jre-home` + fi +fi + +if [ -z "$M2_HOME" ] ; then + ## resolve links - $0 may be a link to maven's home + PRG="$0" + + # need this for relative symlinks + while [ -h "$PRG" ] ; do + ls=`ls -ld "$PRG"` + link=`expr "$ls" : '.*-> \(.*\)$'` + if expr "$link" : '/.*' > /dev/null; then + PRG="$link" + else + PRG="`dirname "$PRG"`/$link" + fi + done + + saveddir=`pwd` + + M2_HOME=`dirname "$PRG"`/.. + + # make it fully qualified + M2_HOME=`cd "$M2_HOME" && pwd` + + cd "$saveddir" + # echo Using m2 at $M2_HOME +fi + +# For Cygwin, ensure paths are in UNIX format before anything is touched +if $cygwin ; then + [ -n "$M2_HOME" ] && + M2_HOME=`cygpath --unix "$M2_HOME"` + [ -n "$JAVA_HOME" ] && + JAVA_HOME=`cygpath --unix "$JAVA_HOME"` + [ -n "$CLASSPATH" ] && + CLASSPATH=`cygpath --path --unix "$CLASSPATH"` +fi + +# For Mingw, ensure paths are in UNIX format before anything is touched +if $mingw ; then + [ -n "$M2_HOME" ] && + M2_HOME="`(cd "$M2_HOME"; pwd)`" + [ -n "$JAVA_HOME" ] && + JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`" +fi + +if [ -z "$JAVA_HOME" ]; then + javaExecutable="`which javac`" + if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then + # readlink(1) is not available as standard on Solaris 10. + readLink=`which readlink` + if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then + if $darwin ; then + javaHome="`dirname \"$javaExecutable\"`" + javaExecutable="`cd \"$javaHome\" && pwd -P`/javac" + else + javaExecutable="`readlink -f \"$javaExecutable\"`" + fi + javaHome="`dirname \"$javaExecutable\"`" + javaHome=`expr "$javaHome" : '\(.*\)/bin'` + JAVA_HOME="$javaHome" + export JAVA_HOME + fi + fi +fi + +if [ -z "$JAVACMD" ] ; then + if [ -n "$JAVA_HOME" ] ; then + if [ -x "$JAVA_HOME/jre/sh/java" ] ; then + # IBM's JDK on AIX uses strange locations for the executables + JAVACMD="$JAVA_HOME/jre/sh/java" + else + JAVACMD="$JAVA_HOME/bin/java" + fi + else + JAVACMD="`\\unset -f command; \\command -v java`" + fi +fi + +if [ ! -x "$JAVACMD" ] ; then + echo "Error: JAVA_HOME is not defined correctly." >&2 + echo " We cannot execute $JAVACMD" >&2 + exit 1 +fi + +if [ -z "$JAVA_HOME" ] ; then + echo "Warning: JAVA_HOME environment variable is not set." +fi + +CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher + +# traverses directory structure from process work directory to filesystem root +# first directory with .mvn subdirectory is considered project base directory +find_maven_basedir() { + + if [ -z "$1" ] + then + echo "Path not specified to find_maven_basedir" + return 1 + fi + + basedir="$1" + wdir="$1" + while [ "$wdir" != '/' ] ; do + if [ -d "$wdir"/.mvn ] ; then + basedir=$wdir + break + fi + # workaround for JBEAP-8937 (on Solaris 10/Sparc) + if [ -d "${wdir}" ]; then + wdir=`cd "$wdir/.."; pwd` + fi + # end of workaround + done + echo "${basedir}" +} + +# concatenates all lines of a file +concat_lines() { + if [ -f "$1" ]; then + echo "$(tr -s '\n' ' ' < "$1")" + fi +} + +BASE_DIR=`find_maven_basedir "$(pwd)"` +if [ -z "$BASE_DIR" ]; then + exit 1; +fi + +########################################################################################## +# Extension to allow automatically downloading the maven-wrapper.jar from Maven-central +# This allows using the maven wrapper in projects that prohibit checking in binary data. +########################################################################################## +if [ -r "$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" ]; then + if [ "$MVNW_VERBOSE" = true ]; then + echo "Found .mvn/wrapper/maven-wrapper.jar" + fi +else + if [ "$MVNW_VERBOSE" = true ]; then + echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..." + fi + if [ -n "$MVNW_REPOURL" ]; then + jarUrl="$MVNW_REPOURL/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar" + else + jarUrl="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar" + fi + while IFS="=" read key value; do + case "$key" in (wrapperUrl) jarUrl="$value"; break ;; + esac + done < "$BASE_DIR/.mvn/wrapper/maven-wrapper.properties" + if [ "$MVNW_VERBOSE" = true ]; then + echo "Downloading from: $jarUrl" + fi + wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" + if $cygwin; then + wrapperJarPath=`cygpath --path --windows "$wrapperJarPath"` + fi + + if command -v wget > /dev/null; then + if [ "$MVNW_VERBOSE" = true ]; then + echo "Found wget ... using wget" + fi + if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then + wget "$jarUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath" + else + wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath" + fi + elif command -v curl > /dev/null; then + if [ "$MVNW_VERBOSE" = true ]; then + echo "Found curl ... using curl" + fi + if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then + curl -o "$wrapperJarPath" "$jarUrl" -f + else + curl --user $MVNW_USERNAME:$MVNW_PASSWORD -o "$wrapperJarPath" "$jarUrl" -f + fi + + else + if [ "$MVNW_VERBOSE" = true ]; then + echo "Falling back to using Java to download" + fi + javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java" + # For Cygwin, switch paths to Windows format before running javac + if $cygwin; then + javaClass=`cygpath --path --windows "$javaClass"` + fi + if [ -e "$javaClass" ]; then + if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then + if [ "$MVNW_VERBOSE" = true ]; then + echo " - Compiling MavenWrapperDownloader.java ..." + fi + # Compiling the Java class + ("$JAVA_HOME/bin/javac" "$javaClass") + fi + if [ -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then + # Running the downloader + if [ "$MVNW_VERBOSE" = true ]; then + echo " - Running MavenWrapperDownloader.java ..." + fi + ("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR") + fi + fi + fi +fi +########################################################################################## +# End of extension +########################################################################################## + +export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"} +if [ "$MVNW_VERBOSE" = true ]; then + echo $MAVEN_PROJECTBASEDIR +fi +MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS" + +# For Cygwin, switch paths to Windows format before running java +if $cygwin; then + [ -n "$M2_HOME" ] && + M2_HOME=`cygpath --path --windows "$M2_HOME"` + [ -n "$JAVA_HOME" ] && + JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"` + [ -n "$CLASSPATH" ] && + CLASSPATH=`cygpath --path --windows "$CLASSPATH"` + [ -n "$MAVEN_PROJECTBASEDIR" ] && + MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"` +fi + +# Provide a "standardized" way to retrieve the CLI args that will +# work with both Windows and non-Windows executions. +MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $@" +export MAVEN_CMD_LINE_ARGS + +WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain + +exec "$JAVACMD" \ + $MAVEN_OPTS \ + $MAVEN_DEBUG_OPTS \ + -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \ + "-Dmaven.home=${M2_HOME}" \ + "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \ + ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@" diff --git a/spring-webflux/mvnw.cmd b/spring-webflux/mvnw.cmd new file mode 100644 index 0000000..1d8ab01 --- /dev/null +++ b/spring-webflux/mvnw.cmd @@ -0,0 +1,188 @@ +@REM ---------------------------------------------------------------------------- +@REM Licensed to the Apache Software Foundation (ASF) under one +@REM or more contributor license agreements. See the NOTICE file +@REM distributed with this work for additional information +@REM regarding copyright ownership. The ASF licenses this file +@REM to you under the Apache License, Version 2.0 (the +@REM "License"); you may not use this file except in compliance +@REM with the License. You may obtain a copy of the License at +@REM +@REM https://www.apache.org/licenses/LICENSE-2.0 +@REM +@REM Unless required by applicable law or agreed to in writing, +@REM software distributed under the License is distributed on an +@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +@REM KIND, either express or implied. See the License for the +@REM specific language governing permissions and limitations +@REM under the License. +@REM ---------------------------------------------------------------------------- + +@REM ---------------------------------------------------------------------------- +@REM Maven Start Up Batch script +@REM +@REM Required ENV vars: +@REM JAVA_HOME - location of a JDK home dir +@REM +@REM Optional ENV vars +@REM M2_HOME - location of maven2's installed home dir +@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands +@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a keystroke before ending +@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven +@REM e.g. to debug Maven itself, use +@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 +@REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files +@REM ---------------------------------------------------------------------------- + +@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on' +@echo off +@REM set title of command window +title %0 +@REM enable echoing by setting MAVEN_BATCH_ECHO to 'on' +@if "%MAVEN_BATCH_ECHO%" == "on" echo %MAVEN_BATCH_ECHO% + +@REM set %HOME% to equivalent of $HOME +if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%") + +@REM Execute a user defined script before this one +if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre +@REM check for pre script, once with legacy .bat ending and once with .cmd ending +if exist "%USERPROFILE%\mavenrc_pre.bat" call "%USERPROFILE%\mavenrc_pre.bat" %* +if exist "%USERPROFILE%\mavenrc_pre.cmd" call "%USERPROFILE%\mavenrc_pre.cmd" %* +:skipRcPre + +@setlocal + +set ERROR_CODE=0 + +@REM To isolate internal variables from possible post scripts, we use another setlocal +@setlocal + +@REM ==== START VALIDATION ==== +if not "%JAVA_HOME%" == "" goto OkJHome + +echo. +echo Error: JAVA_HOME not found in your environment. >&2 +echo Please set the JAVA_HOME variable in your environment to match the >&2 +echo location of your Java installation. >&2 +echo. +goto error + +:OkJHome +if exist "%JAVA_HOME%\bin\java.exe" goto init + +echo. +echo Error: JAVA_HOME is set to an invalid directory. >&2 +echo JAVA_HOME = "%JAVA_HOME%" >&2 +echo Please set the JAVA_HOME variable in your environment to match the >&2 +echo location of your Java installation. >&2 +echo. +goto error + +@REM ==== END VALIDATION ==== + +:init + +@REM Find the project base dir, i.e. the directory that contains the folder ".mvn". +@REM Fallback to current working directory if not found. + +set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR% +IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir + +set EXEC_DIR=%CD% +set WDIR=%EXEC_DIR% +:findBaseDir +IF EXIST "%WDIR%"\.mvn goto baseDirFound +cd .. +IF "%WDIR%"=="%CD%" goto baseDirNotFound +set WDIR=%CD% +goto findBaseDir + +:baseDirFound +set MAVEN_PROJECTBASEDIR=%WDIR% +cd "%EXEC_DIR%" +goto endDetectBaseDir + +:baseDirNotFound +set MAVEN_PROJECTBASEDIR=%EXEC_DIR% +cd "%EXEC_DIR%" + +:endDetectBaseDir + +IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig + +@setlocal EnableExtensions EnableDelayedExpansion +for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a +@endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS% + +:endReadAdditionalConfig + +SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe" +set WRAPPER_JAR="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar" +set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain + +set DOWNLOAD_URL="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar" + +FOR /F "usebackq tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO ( + IF "%%A"=="wrapperUrl" SET DOWNLOAD_URL=%%B +) + +@REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central +@REM This allows using the maven wrapper in projects that prohibit checking in binary data. +if exist %WRAPPER_JAR% ( + if "%MVNW_VERBOSE%" == "true" ( + echo Found %WRAPPER_JAR% + ) +) else ( + if not "%MVNW_REPOURL%" == "" ( + SET DOWNLOAD_URL="%MVNW_REPOURL%/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar" + ) + if "%MVNW_VERBOSE%" == "true" ( + echo Couldn't find %WRAPPER_JAR%, downloading it ... + echo Downloading from: %DOWNLOAD_URL% + ) + + powershell -Command "&{"^ + "$webclient = new-object System.Net.WebClient;"^ + "if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^ + "$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_USERNAME%', '%MVNW_PASSWORD%');"^ + "}"^ + "[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"^ + "}" + if "%MVNW_VERBOSE%" == "true" ( + echo Finished downloading %WRAPPER_JAR% + ) +) +@REM End of extension + +@REM Provide a "standardized" way to retrieve the CLI args that will +@REM work with both Windows and non-Windows executions. +set MAVEN_CMD_LINE_ARGS=%* + +%MAVEN_JAVA_EXE% ^ + %JVM_CONFIG_MAVEN_PROPS% ^ + %MAVEN_OPTS% ^ + %MAVEN_DEBUG_OPTS% ^ + -classpath %WRAPPER_JAR% ^ + "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" ^ + %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %* +if ERRORLEVEL 1 goto error +goto end + +:error +set ERROR_CODE=1 + +:end +@endlocal & set ERROR_CODE=%ERROR_CODE% + +if not "%MAVEN_SKIP_RC%"=="" goto skipRcPost +@REM check for post script, once with legacy .bat ending and once with .cmd ending +if exist "%USERPROFILE%\mavenrc_post.bat" call "%USERPROFILE%\mavenrc_post.bat" +if exist "%USERPROFILE%\mavenrc_post.cmd" call "%USERPROFILE%\mavenrc_post.cmd" +:skipRcPost + +@REM pause the script if MAVEN_BATCH_PAUSE is set to 'on' +if "%MAVEN_BATCH_PAUSE%"=="on" pause + +if "%MAVEN_TERMINATE_CMD%"=="on" exit %ERROR_CODE% + +cmd /C exit /B %ERROR_CODE% diff --git a/spring-webflux/pom.xml b/spring-webflux/pom.xml new file mode 100644 index 0000000..7ad81ce --- /dev/null +++ b/spring-webflux/pom.xml @@ -0,0 +1,69 @@ + + + 4.0.0 + + org.springframework.boot + spring-boot-starter-parent + 2.6.3 + + + io.reflectoring + spring-webflux + 0.0.1-SNAPSHOT + spring-webflux + Getting Started with Spring Webflux + + 1.8 + + + + org.springframework.boot + spring-boot-starter-data-mongodb-reactive + + + org.springframework.boot + spring-boot-starter-webflux + + + + org.springframework.boot + spring-boot-devtools + runtime + true + + + org.projectlombok + lombok + true + + + org.springframework.boot + spring-boot-starter-test + test + + + io.projectreactor + reactor-test + test + + + + + + + org.springframework.boot + spring-boot-maven-plugin + + + + org.projectlombok + lombok + + + + + + + + diff --git a/spring-webflux/src/main/java/io/reflectoring/springwebflux/SpringWebfluxApplication.java b/spring-webflux/src/main/java/io/reflectoring/springwebflux/SpringWebfluxApplication.java new file mode 100644 index 0000000..e404c9f --- /dev/null +++ b/spring-webflux/src/main/java/io/reflectoring/springwebflux/SpringWebfluxApplication.java @@ -0,0 +1,15 @@ +package io.reflectoring.springwebflux; + +import org.springframework.boot.SpringApplication; +import org.springframework.boot.autoconfigure.SpringBootApplication; +import org.springframework.data.mongodb.config.EnableMongoAuditing; +import org.springframework.data.mongodb.repository.config.EnableReactiveMongoRepositories; + +@EnableMongoAuditing +@EnableReactiveMongoRepositories +@SpringBootApplication +public class SpringWebfluxApplication { + public static void main(String[] args) { + SpringApplication.run(SpringWebfluxApplication.class, args); + } +} diff --git a/spring-webflux/src/main/java/io/reflectoring/springwebflux/client/WebClientUtil.java b/spring-webflux/src/main/java/io/reflectoring/springwebflux/client/WebClientUtil.java new file mode 100644 index 0000000..331de92 --- /dev/null +++ b/spring-webflux/src/main/java/io/reflectoring/springwebflux/client/WebClientUtil.java @@ -0,0 +1,43 @@ +package io.reflectoring.springwebflux.client; + +import io.reflectoring.springwebflux.model.User; +import lombok.RequiredArgsConstructor; +import lombok.extern.slf4j.Slf4j; +import org.springframework.http.MediaType; +import org.springframework.stereotype.Component; +import org.springframework.web.reactive.function.client.WebClient; +import reactor.core.publisher.Mono; +import reactor.util.retry.Retry; + +import java.time.Duration; + +@Slf4j +@Component +@RequiredArgsConstructor +public class WebClientUtil { + + private final WebClient webClient; + + public WebClient.ResponseSpec getFakeUsers() { + return webClient + .get() + .uri("https://randomuser.me/api/") + .retrieve(); + } + + public Mono postUser(User user) { + return webClient + .post() + .uri("http://localhost:9000/api/users") + .header("Authorization", "Basic MY_PASSWORD") + .accept(MediaType.APPLICATION_JSON) + .body(Mono.just(user), User.class) + .retrieve() + .bodyToMono(User.class) + .log() + .retryWhen(Retry.backoff(10, Duration.ofSeconds(2))) + .onErrorReturn(new User()) + .doOnError(throwable -> log.error("Result error out for POST user", throwable)) + .doFinally(signalType -> log.info("Result Completed for POST User: {}", signalType)); + } +} diff --git a/spring-webflux/src/main/java/io/reflectoring/springwebflux/config/RouterConfig.java b/spring-webflux/src/main/java/io/reflectoring/springwebflux/config/RouterConfig.java new file mode 100644 index 0000000..c33f40a --- /dev/null +++ b/spring-webflux/src/main/java/io/reflectoring/springwebflux/config/RouterConfig.java @@ -0,0 +1,24 @@ +package io.reflectoring.springwebflux.config; + +import io.reflectoring.springwebflux.handler.UserHandler; +import org.springframework.context.annotation.Bean; +import org.springframework.context.annotation.Configuration; +import org.springframework.http.MediaType; +import org.springframework.web.reactive.function.server.RouterFunction; +import org.springframework.web.reactive.function.server.ServerResponse; + +import static org.springframework.web.reactive.function.server.RequestPredicates.*; +import static org.springframework.web.reactive.function.server.RouterFunctions.route; + +@Configuration +public class RouterConfig { + + @Bean + RouterFunction routes(UserHandler handler) { + return route(GET("/handler/users").and(accept(MediaType.APPLICATION_JSON)), handler::getAllUsers) + .andRoute(GET("/handler/users/{userId}").and(contentType(MediaType.APPLICATION_JSON)), handler::getUserById) + .andRoute(POST("/handler/users").and(accept(MediaType.APPLICATION_JSON)), handler::create) + .andRoute(PUT("/handler/users/{userId}").and(contentType(MediaType.APPLICATION_JSON)), handler::updateUserById) + .andRoute(DELETE("/handler/users/{userId}").and(accept(MediaType.APPLICATION_JSON)), handler::deleteUserById); + } +} diff --git a/spring-webflux/src/main/java/io/reflectoring/springwebflux/config/WebclientConfig.java b/spring-webflux/src/main/java/io/reflectoring/springwebflux/config/WebclientConfig.java new file mode 100644 index 0000000..edb5adc --- /dev/null +++ b/spring-webflux/src/main/java/io/reflectoring/springwebflux/config/WebclientConfig.java @@ -0,0 +1,46 @@ +package io.reflectoring.springwebflux.config; + +import io.netty.channel.ChannelOption; +import io.netty.handler.logging.LogLevel; +import io.netty.handler.ssl.SslContext; +import io.netty.handler.ssl.SslContextBuilder; +import io.netty.handler.ssl.util.InsecureTrustManagerFactory; +import io.netty.handler.timeout.ReadTimeoutHandler; +import org.springframework.context.annotation.Bean; +import org.springframework.context.annotation.Configuration; +import org.springframework.http.client.reactive.ReactorClientHttpConnector; +import org.springframework.web.reactive.function.client.ExchangeStrategies; +import org.springframework.web.reactive.function.client.WebClient; +import reactor.netty.http.client.HttpClient; +import reactor.netty.transport.logging.AdvancedByteBufFormat; + +import javax.net.ssl.SSLException; +import java.util.concurrent.TimeUnit; + +@Configuration +public class WebclientConfig { + + @Bean + public WebClient getWebClientBuilder() throws SSLException { + + // Define SSLContext in order to connect to secure REST API network + SslContext sslContext = SslContextBuilder + .forClient() + .trustManager(InsecureTrustManagerFactory.INSTANCE) + .build(); + + // Create an HTTP Client. Overload with timeout config and LogLevel settings. + // Override the above SSLContext into the client + HttpClient httpClient = HttpClient.create() + .option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 120 * 1000) + .doOnConnected(connection -> connection.addHandlerLast(new ReadTimeoutHandler(120 * 1000, TimeUnit.MILLISECONDS))) + .wiretap("reactor.netty.http.client.HttpClient", LogLevel.DEBUG, AdvancedByteBufFormat.TEXTUAL) + .followRedirect(true) + .secure(sslContextSpec -> sslContextSpec.sslContext(sslContext)); + + // Add the above connector to the WebClient instance + return WebClient.builder() + .clientConnector(new ReactorClientHttpConnector(httpClient)) + .build(); + } +} diff --git a/spring-webflux/src/main/java/io/reflectoring/springwebflux/controller/UserController.java b/spring-webflux/src/main/java/io/reflectoring/springwebflux/controller/UserController.java new file mode 100644 index 0000000..2950145 --- /dev/null +++ b/spring-webflux/src/main/java/io/reflectoring/springwebflux/controller/UserController.java @@ -0,0 +1,72 @@ +package io.reflectoring.springwebflux.controller; + +import io.reflectoring.springwebflux.model.User; +import io.reflectoring.springwebflux.service.UserService; +import lombok.RequiredArgsConstructor; +import org.springframework.http.HttpStatus; +import org.springframework.http.MediaType; +import org.springframework.http.ResponseEntity; +import org.springframework.web.bind.annotation.*; +import reactor.core.publisher.Flux; +import reactor.core.publisher.Mono; +import reactor.util.function.Tuple2; + +import java.time.Duration; +import java.util.stream.Stream; + +@RequiredArgsConstructor +@RestController +@RequestMapping("/users") +public class UserController { + + private final UserService userService; + + @PostMapping + @ResponseStatus(HttpStatus.CREATED) + public Mono create(@RequestBody User user){ + return userService.createUser(user); + } + + @GetMapping + public Flux getAllUsers(){ + return userService.getAllUsers(); + } + + @GetMapping("/{userId}") + public Mono> getUserById(@PathVariable String userId){ + Mono user = userService.findById(userId); + return user.map(ResponseEntity::ok) + .defaultIfEmpty(ResponseEntity.notFound().build()); + } + + @PutMapping("/{userId}") + public Mono> updateUserById(@PathVariable String userId, @RequestBody User user){ + return userService.updateUser(userId,user) + .map(ResponseEntity::ok) + .defaultIfEmpty(ResponseEntity.badRequest().build()); + } + + @DeleteMapping("/{userId}") + public Mono> deleteUserById(@PathVariable String userId){ + return userService.deleteUser(userId) + .map( r -> ResponseEntity.ok().build()) + .defaultIfEmpty(ResponseEntity.notFound().build()); + } + + @GetMapping("/search") + public Flux searchUsers(@RequestParam("name") String name) { + return userService.fetchUsers(name); + } + + @GetMapping(value = "/stream", produces = MediaType.TEXT_EVENT_STREAM_VALUE) + public Flux streamAllUsers() { + return userService + .getAllUsers() + .flatMap(user -> Flux + .zip(Flux.interval(Duration.ofSeconds(2)), + Flux.fromStream(Stream.generate(() -> user)) + ) + .map(Tuple2::getT2) + ); + } +} diff --git a/spring-webflux/src/main/java/io/reflectoring/springwebflux/handler/UserHandler.java b/spring-webflux/src/main/java/io/reflectoring/springwebflux/handler/UserHandler.java new file mode 100644 index 0000000..64cbb5c --- /dev/null +++ b/spring-webflux/src/main/java/io/reflectoring/springwebflux/handler/UserHandler.java @@ -0,0 +1,65 @@ +package io.reflectoring.springwebflux.handler; + +import io.reflectoring.springwebflux.model.User; +import io.reflectoring.springwebflux.service.UserService; +import lombok.RequiredArgsConstructor; +import org.springframework.http.HttpStatus; +import org.springframework.http.MediaType; +import org.springframework.stereotype.Component; +import org.springframework.web.reactive.function.server.ServerRequest; +import org.springframework.web.reactive.function.server.ServerResponse; +import reactor.core.publisher.Mono; + +@Component +@RequiredArgsConstructor +public class UserHandler { + + private final UserService userService; + + public Mono getAllUsers(ServerRequest request) { + return ServerResponse + .ok() + .contentType(MediaType.APPLICATION_JSON) + .body(userService.getAllUsers(), User.class); + } + + public Mono getUserById(ServerRequest request) { + return userService + .findById(request.pathVariable("userId")) + .flatMap(user -> ServerResponse + .ok() + .contentType(MediaType.APPLICATION_JSON) + .body(user, User.class) + ) + .switchIfEmpty(ServerResponse.notFound().build()); + } + + public Mono create(ServerRequest request) { + Mono user = request.bodyToMono(User.class); + + return user + .flatMap(u -> ServerResponse + .status(HttpStatus.CREATED) + .contentType(MediaType.APPLICATION_JSON) + .body(userService.createUser(u), User.class) + ); + } + + public Mono updateUserById(ServerRequest request) { + String id = request.pathVariable("userId"); + Mono updatedUser = request.bodyToMono(User.class); + + return updatedUser + .flatMap(u -> ServerResponse + .ok() + .contentType(MediaType.APPLICATION_JSON) + .body(userService.updateUser(id, u), User.class) + ); + } + + public Mono deleteUserById(ServerRequest request){ + return userService.deleteUser(request.pathVariable("userId")) + .flatMap(u -> ServerResponse.ok().body(u, User.class)) + .switchIfEmpty(ServerResponse.notFound().build()); + } +} diff --git a/spring-webflux/src/main/java/io/reflectoring/springwebflux/model/User.java b/spring-webflux/src/main/java/io/reflectoring/springwebflux/model/User.java new file mode 100644 index 0000000..750e332 --- /dev/null +++ b/spring-webflux/src/main/java/io/reflectoring/springwebflux/model/User.java @@ -0,0 +1,21 @@ +package io.reflectoring.springwebflux.model; + +import lombok.*; +import org.springframework.data.annotation.Id; +import org.springframework.data.mongodb.core.mapping.Document; + +@ToString +@EqualsAndHashCode(of = {"id","name","department"}) +@AllArgsConstructor +@NoArgsConstructor +@Data +@Document(value = "users") +public class User { + + @Id + private String id; + private String name; + private int age; + private double salary; + private String department; +} diff --git a/spring-webflux/src/main/java/io/reflectoring/springwebflux/repository/UserRepository.java b/spring-webflux/src/main/java/io/reflectoring/springwebflux/repository/UserRepository.java new file mode 100644 index 0000000..8a596f3 --- /dev/null +++ b/spring-webflux/src/main/java/io/reflectoring/springwebflux/repository/UserRepository.java @@ -0,0 +1,9 @@ +package io.reflectoring.springwebflux.repository; + +import io.reflectoring.springwebflux.model.User; +import org.springframework.data.mongodb.repository.ReactiveMongoRepository; +import org.springframework.stereotype.Repository; + +@Repository +public interface UserRepository extends ReactiveMongoRepository { +} diff --git a/spring-webflux/src/main/java/io/reflectoring/springwebflux/service/UserService.java b/spring-webflux/src/main/java/io/reflectoring/springwebflux/service/UserService.java new file mode 100644 index 0000000..7904efc --- /dev/null +++ b/spring-webflux/src/main/java/io/reflectoring/springwebflux/service/UserService.java @@ -0,0 +1,70 @@ +package io.reflectoring.springwebflux.service; + +import io.reflectoring.springwebflux.model.User; +import io.reflectoring.springwebflux.repository.UserRepository; +import lombok.RequiredArgsConstructor; +import lombok.extern.slf4j.Slf4j; +import org.springframework.data.domain.Sort; +import org.springframework.data.mongodb.core.ReactiveMongoTemplate; +import org.springframework.data.mongodb.core.query.Criteria; +import org.springframework.data.mongodb.core.query.Query; +import org.springframework.stereotype.Service; +import org.springframework.transaction.annotation.Transactional; +import reactor.core.publisher.Flux; +import reactor.core.publisher.Mono; +import reactor.core.scheduler.Schedulers; + +import java.util.Arrays; +import java.util.Collections; +import java.util.List; + +@Service +@Slf4j +@RequiredArgsConstructor +@Transactional +public class UserService { + + private final ReactiveMongoTemplate reactiveMongoTemplate; + private final UserRepository userRepository; + + public Mono createUser(User user){ + return userRepository.save(user); + } + + public Flux getAllUsers(){ + return userRepository.findAll(); + } + + public Mono findById(String userId){ + return userRepository.findById(userId); + } + + public Mono updateUser(String userId, User user){ + return userRepository.findById(userId) + .flatMap(dbUser -> { + dbUser.setAge(user.getAge()); + dbUser.setSalary(user.getSalary()); + return userRepository.save(dbUser); + }); + } + + public Mono deleteUser(String userId){ + return userRepository.findById(userId) + .flatMap(existingUser -> userRepository.delete(existingUser) + .then(Mono.just(existingUser))); + } + + public Flux fetchUsers(String name) { + Query query = new Query() + .with(Sort + .by(Collections.singletonList(Sort.Order.asc("age"))) + ); + query.addCriteria(Criteria + .where("name") + .regex(name) + ); + + return reactiveMongoTemplate + .find(query, User.class); + } +} diff --git a/spring-webflux/src/main/resources/application.yml b/spring-webflux/src/main/resources/application.yml new file mode 100644 index 0000000..2b69735 --- /dev/null +++ b/spring-webflux/src/main/resources/application.yml @@ -0,0 +1,31 @@ +spring: + application: + name: spring-webflux-guide + webflux: + base-path: /api + data: + mongodb: + authentication-database: admin + uri: mongodb://localhost:27017/test + database: test + +server: + port: 9000 + http2: + enabled: true + +logging: + level: + io: + reflectoring: DEBUG + org: + springframework: + web: INFO + data: + mongodb: + core: + ReactiveMongoTemplate: DEBUG + reactor: + netty: + http: + client: DEBUG diff --git a/spring-webflux/src/test/java/io/reflectoring/springwebflux/SpringWebfluxApplicationTests.java b/spring-webflux/src/test/java/io/reflectoring/springwebflux/SpringWebfluxApplicationTests.java new file mode 100644 index 0000000..3de02fd --- /dev/null +++ b/spring-webflux/src/test/java/io/reflectoring/springwebflux/SpringWebfluxApplicationTests.java @@ -0,0 +1,13 @@ +package io.reflectoring.springwebflux; + +import org.junit.jupiter.api.Test; +import org.springframework.boot.test.context.SpringBootTest; + +@SpringBootTest +class SpringWebfluxApplicationTests { + + @Test + void contextLoads() { + } + +}