├── .gitignore ├── .mvn └── wrapper │ ├── maven-wrapper.jar │ └── maven-wrapper.properties ├── mvnw ├── mvnw.cmd ├── pom.xml └── src ├── main ├── kotlin │ └── com │ │ └── example │ │ └── apigatewayresearch │ │ ├── ApiGatewayResearchApplication.kt │ │ ├── controller │ │ ├── ErrorController.kt │ │ └── ErrorPageController.kt │ │ ├── exception │ │ └── NoRequestException.kt │ │ ├── filter │ │ ├── ExceptionGlobalFilter.kt │ │ ├── RateLimiterGatewayFilterFactory.kt │ │ └── TimeGatewayFilterFactory.kt │ │ ├── model │ │ └── RateLimiterConfig.kt │ │ ├── properties │ │ └── RateLimiterMetricProperties.kt │ │ ├── runner │ │ └── RateLimiterRunner.kt │ │ ├── scheduler │ │ └── RateLimiterScheduler.kt │ │ └── service │ │ └── RateLimiterService.kt └── resources │ └── application.properties └── test └── kotlin └── com └── example └── apigatewayresearch ├── ApiGatewayResearchApplicationTests.kt └── RateLimiterTest.kt /.gitignore: -------------------------------------------------------------------------------- 1 | HELP.md 2 | target/ 3 | !.mvn/wrapper/maven-wrapper.jar 4 | !**/src/main/**/target/ 5 | !**/src/test/**/target/ 6 | 7 | ### STS ### 8 | .apt_generated 9 | .classpath 10 | .factorypath 11 | .project 12 | .settings 13 | .springBeans 14 | .sts4-cache 15 | 16 | ### IntelliJ IDEA ### 17 | .idea 18 | *.iws 19 | *.iml 20 | *.ipr 21 | 22 | ### NetBeans ### 23 | /nbproject/private/ 24 | /nbbuild/ 25 | /dist/ 26 | /nbdist/ 27 | /.nb-gradle/ 28 | build/ 29 | !**/src/main/**/build/ 30 | !**/src/test/**/build/ 31 | 32 | ### VS Code ### 33 | .vscode/ 34 | -------------------------------------------------------------------------------- /.mvn/wrapper/maven-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/khannedy/api-gateway-research/6d34ecdd26d5e8a225a56830c9c78b27153ce238/.mvn/wrapper/maven-wrapper.jar -------------------------------------------------------------------------------- /.mvn/wrapper/maven-wrapper.properties: -------------------------------------------------------------------------------- 1 | distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.6/apache-maven-3.8.6-bin.zip 2 | wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar 3 | -------------------------------------------------------------------------------- /mvnw: -------------------------------------------------------------------------------- 1 | #!/bin/sh 2 | # ---------------------------------------------------------------------------- 3 | # Licensed to the Apache Software Foundation (ASF) under one 4 | # or more contributor license agreements. See the NOTICE file 5 | # distributed with this work for additional information 6 | # regarding copyright ownership. The ASF licenses this file 7 | # to you under the Apache License, Version 2.0 (the 8 | # "License"); you may not use this file except in compliance 9 | # with the License. You may obtain a copy of the License at 10 | # 11 | # https://www.apache.org/licenses/LICENSE-2.0 12 | # 13 | # Unless required by applicable law or agreed to in writing, 14 | # software distributed under the License is distributed on an 15 | # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 | # KIND, either express or implied. See the License for the 17 | # specific language governing permissions and limitations 18 | # under the License. 19 | # ---------------------------------------------------------------------------- 20 | 21 | # ---------------------------------------------------------------------------- 22 | # Maven Start Up Batch script 23 | # 24 | # Required ENV vars: 25 | # ------------------ 26 | # JAVA_HOME - location of a JDK home dir 27 | # 28 | # Optional ENV vars 29 | # ----------------- 30 | # M2_HOME - location of maven2's installed home dir 31 | # MAVEN_OPTS - parameters passed to the Java VM when running Maven 32 | # e.g. to debug Maven itself, use 33 | # set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 34 | # MAVEN_SKIP_RC - flag to disable loading of mavenrc files 35 | # ---------------------------------------------------------------------------- 36 | 37 | if [ -z "$MAVEN_SKIP_RC" ] ; then 38 | 39 | if [ -f /usr/local/etc/mavenrc ] ; then 40 | . /usr/local/etc/mavenrc 41 | fi 42 | 43 | if [ -f /etc/mavenrc ] ; then 44 | . /etc/mavenrc 45 | fi 46 | 47 | if [ -f "$HOME/.mavenrc" ] ; then 48 | . "$HOME/.mavenrc" 49 | fi 50 | 51 | fi 52 | 53 | # OS specific support. $var _must_ be set to either true or false. 54 | cygwin=false; 55 | darwin=false; 56 | mingw=false 57 | case "`uname`" in 58 | CYGWIN*) cygwin=true ;; 59 | MINGW*) mingw=true;; 60 | Darwin*) darwin=true 61 | # Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home 62 | # See https://developer.apple.com/library/mac/qa/qa1170/_index.html 63 | if [ -z "$JAVA_HOME" ]; then 64 | if [ -x "/usr/libexec/java_home" ]; then 65 | export JAVA_HOME="`/usr/libexec/java_home`" 66 | else 67 | export JAVA_HOME="/Library/Java/Home" 68 | fi 69 | fi 70 | ;; 71 | esac 72 | 73 | if [ -z "$JAVA_HOME" ] ; then 74 | if [ -r /etc/gentoo-release ] ; then 75 | JAVA_HOME=`java-config --jre-home` 76 | fi 77 | fi 78 | 79 | if [ -z "$M2_HOME" ] ; then 80 | ## resolve links - $0 may be a link to maven's home 81 | PRG="$0" 82 | 83 | # need this for relative symlinks 84 | while [ -h "$PRG" ] ; do 85 | ls=`ls -ld "$PRG"` 86 | link=`expr "$ls" : '.*-> \(.*\)$'` 87 | if expr "$link" : '/.*' > /dev/null; then 88 | PRG="$link" 89 | else 90 | PRG="`dirname "$PRG"`/$link" 91 | fi 92 | done 93 | 94 | saveddir=`pwd` 95 | 96 | M2_HOME=`dirname "$PRG"`/.. 97 | 98 | # make it fully qualified 99 | M2_HOME=`cd "$M2_HOME" && pwd` 100 | 101 | cd "$saveddir" 102 | # echo Using m2 at $M2_HOME 103 | fi 104 | 105 | # For Cygwin, ensure paths are in UNIX format before anything is touched 106 | if $cygwin ; then 107 | [ -n "$M2_HOME" ] && 108 | M2_HOME=`cygpath --unix "$M2_HOME"` 109 | [ -n "$JAVA_HOME" ] && 110 | JAVA_HOME=`cygpath --unix "$JAVA_HOME"` 111 | [ -n "$CLASSPATH" ] && 112 | CLASSPATH=`cygpath --path --unix "$CLASSPATH"` 113 | fi 114 | 115 | # For Mingw, ensure paths are in UNIX format before anything is touched 116 | if $mingw ; then 117 | [ -n "$M2_HOME" ] && 118 | M2_HOME="`(cd "$M2_HOME"; pwd)`" 119 | [ -n "$JAVA_HOME" ] && 120 | JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`" 121 | fi 122 | 123 | if [ -z "$JAVA_HOME" ]; then 124 | javaExecutable="`which javac`" 125 | if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then 126 | # readlink(1) is not available as standard on Solaris 10. 127 | readLink=`which readlink` 128 | if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then 129 | if $darwin ; then 130 | javaHome="`dirname \"$javaExecutable\"`" 131 | javaExecutable="`cd \"$javaHome\" && pwd -P`/javac" 132 | else 133 | javaExecutable="`readlink -f \"$javaExecutable\"`" 134 | fi 135 | javaHome="`dirname \"$javaExecutable\"`" 136 | javaHome=`expr "$javaHome" : '\(.*\)/bin'` 137 | JAVA_HOME="$javaHome" 138 | export JAVA_HOME 139 | fi 140 | fi 141 | fi 142 | 143 | if [ -z "$JAVACMD" ] ; then 144 | if [ -n "$JAVA_HOME" ] ; then 145 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 146 | # IBM's JDK on AIX uses strange locations for the executables 147 | JAVACMD="$JAVA_HOME/jre/sh/java" 148 | else 149 | JAVACMD="$JAVA_HOME/bin/java" 150 | fi 151 | else 152 | JAVACMD="`\\unset -f command; \\command -v java`" 153 | fi 154 | fi 155 | 156 | if [ ! -x "$JAVACMD" ] ; then 157 | echo "Error: JAVA_HOME is not defined correctly." >&2 158 | echo " We cannot execute $JAVACMD" >&2 159 | exit 1 160 | fi 161 | 162 | if [ -z "$JAVA_HOME" ] ; then 163 | echo "Warning: JAVA_HOME environment variable is not set." 164 | fi 165 | 166 | CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher 167 | 168 | # traverses directory structure from process work directory to filesystem root 169 | # first directory with .mvn subdirectory is considered project base directory 170 | find_maven_basedir() { 171 | 172 | if [ -z "$1" ] 173 | then 174 | echo "Path not specified to find_maven_basedir" 175 | return 1 176 | fi 177 | 178 | basedir="$1" 179 | wdir="$1" 180 | while [ "$wdir" != '/' ] ; do 181 | if [ -d "$wdir"/.mvn ] ; then 182 | basedir=$wdir 183 | break 184 | fi 185 | # workaround for JBEAP-8937 (on Solaris 10/Sparc) 186 | if [ -d "${wdir}" ]; then 187 | wdir=`cd "$wdir/.."; pwd` 188 | fi 189 | # end of workaround 190 | done 191 | echo "${basedir}" 192 | } 193 | 194 | # concatenates all lines of a file 195 | concat_lines() { 196 | if [ -f "$1" ]; then 197 | echo "$(tr -s '\n' ' ' < "$1")" 198 | fi 199 | } 200 | 201 | BASE_DIR=`find_maven_basedir "$(pwd)"` 202 | if [ -z "$BASE_DIR" ]; then 203 | exit 1; 204 | fi 205 | 206 | ########################################################################################## 207 | # Extension to allow automatically downloading the maven-wrapper.jar from Maven-central 208 | # This allows using the maven wrapper in projects that prohibit checking in binary data. 209 | ########################################################################################## 210 | if [ -r "$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" ]; then 211 | if [ "$MVNW_VERBOSE" = true ]; then 212 | echo "Found .mvn/wrapper/maven-wrapper.jar" 213 | fi 214 | else 215 | if [ "$MVNW_VERBOSE" = true ]; then 216 | echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..." 217 | fi 218 | if [ -n "$MVNW_REPOURL" ]; then 219 | jarUrl="$MVNW_REPOURL/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar" 220 | else 221 | jarUrl="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar" 222 | fi 223 | while IFS="=" read key value; do 224 | case "$key" in (wrapperUrl) jarUrl="$value"; break ;; 225 | esac 226 | done < "$BASE_DIR/.mvn/wrapper/maven-wrapper.properties" 227 | if [ "$MVNW_VERBOSE" = true ]; then 228 | echo "Downloading from: $jarUrl" 229 | fi 230 | wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" 231 | if $cygwin; then 232 | wrapperJarPath=`cygpath --path --windows "$wrapperJarPath"` 233 | fi 234 | 235 | if command -v wget > /dev/null; then 236 | if [ "$MVNW_VERBOSE" = true ]; then 237 | echo "Found wget ... using wget" 238 | fi 239 | if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then 240 | wget "$jarUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath" 241 | else 242 | wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath" 243 | fi 244 | elif command -v curl > /dev/null; then 245 | if [ "$MVNW_VERBOSE" = true ]; then 246 | echo "Found curl ... using curl" 247 | fi 248 | if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then 249 | curl -o "$wrapperJarPath" "$jarUrl" -f 250 | else 251 | curl --user $MVNW_USERNAME:$MVNW_PASSWORD -o "$wrapperJarPath" "$jarUrl" -f 252 | fi 253 | 254 | else 255 | if [ "$MVNW_VERBOSE" = true ]; then 256 | echo "Falling back to using Java to download" 257 | fi 258 | javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java" 259 | # For Cygwin, switch paths to Windows format before running javac 260 | if $cygwin; then 261 | javaClass=`cygpath --path --windows "$javaClass"` 262 | fi 263 | if [ -e "$javaClass" ]; then 264 | if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then 265 | if [ "$MVNW_VERBOSE" = true ]; then 266 | echo " - Compiling MavenWrapperDownloader.java ..." 267 | fi 268 | # Compiling the Java class 269 | ("$JAVA_HOME/bin/javac" "$javaClass") 270 | fi 271 | if [ -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then 272 | # Running the downloader 273 | if [ "$MVNW_VERBOSE" = true ]; then 274 | echo " - Running MavenWrapperDownloader.java ..." 275 | fi 276 | ("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR") 277 | fi 278 | fi 279 | fi 280 | fi 281 | ########################################################################################## 282 | # End of extension 283 | ########################################################################################## 284 | 285 | export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"} 286 | if [ "$MVNW_VERBOSE" = true ]; then 287 | echo $MAVEN_PROJECTBASEDIR 288 | fi 289 | MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS" 290 | 291 | # For Cygwin, switch paths to Windows format before running java 292 | if $cygwin; then 293 | [ -n "$M2_HOME" ] && 294 | M2_HOME=`cygpath --path --windows "$M2_HOME"` 295 | [ -n "$JAVA_HOME" ] && 296 | JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"` 297 | [ -n "$CLASSPATH" ] && 298 | CLASSPATH=`cygpath --path --windows "$CLASSPATH"` 299 | [ -n "$MAVEN_PROJECTBASEDIR" ] && 300 | MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"` 301 | fi 302 | 303 | # Provide a "standardized" way to retrieve the CLI args that will 304 | # work with both Windows and non-Windows executions. 305 | MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $@" 306 | export MAVEN_CMD_LINE_ARGS 307 | 308 | WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain 309 | 310 | exec "$JAVACMD" \ 311 | $MAVEN_OPTS \ 312 | $MAVEN_DEBUG_OPTS \ 313 | -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \ 314 | "-Dmaven.home=${M2_HOME}" \ 315 | "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \ 316 | ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@" 317 | -------------------------------------------------------------------------------- /mvnw.cmd: -------------------------------------------------------------------------------- 1 | @REM ---------------------------------------------------------------------------- 2 | @REM Licensed to the Apache Software Foundation (ASF) under one 3 | @REM or more contributor license agreements. See the NOTICE file 4 | @REM distributed with this work for additional information 5 | @REM regarding copyright ownership. The ASF licenses this file 6 | @REM to you under the Apache License, Version 2.0 (the 7 | @REM "License"); you may not use this file except in compliance 8 | @REM with the License. You may obtain a copy of the License at 9 | @REM 10 | @REM https://www.apache.org/licenses/LICENSE-2.0 11 | @REM 12 | @REM Unless required by applicable law or agreed to in writing, 13 | @REM software distributed under the License is distributed on an 14 | @REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 15 | @REM KIND, either express or implied. See the License for the 16 | @REM specific language governing permissions and limitations 17 | @REM under the License. 18 | @REM ---------------------------------------------------------------------------- 19 | 20 | @REM ---------------------------------------------------------------------------- 21 | @REM Maven Start Up Batch script 22 | @REM 23 | @REM Required ENV vars: 24 | @REM JAVA_HOME - location of a JDK home dir 25 | @REM 26 | @REM Optional ENV vars 27 | @REM M2_HOME - location of maven2's installed home dir 28 | @REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands 29 | @REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a keystroke before ending 30 | @REM MAVEN_OPTS - parameters passed to the Java VM when running Maven 31 | @REM e.g. to debug Maven itself, use 32 | @REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 33 | @REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files 34 | @REM ---------------------------------------------------------------------------- 35 | 36 | @REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on' 37 | @echo off 38 | @REM set title of command window 39 | title %0 40 | @REM enable echoing by setting MAVEN_BATCH_ECHO to 'on' 41 | @if "%MAVEN_BATCH_ECHO%" == "on" echo %MAVEN_BATCH_ECHO% 42 | 43 | @REM set %HOME% to equivalent of $HOME 44 | if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%") 45 | 46 | @REM Execute a user defined script before this one 47 | if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre 48 | @REM check for pre script, once with legacy .bat ending and once with .cmd ending 49 | if exist "%USERPROFILE%\mavenrc_pre.bat" call "%USERPROFILE%\mavenrc_pre.bat" %* 50 | if exist "%USERPROFILE%\mavenrc_pre.cmd" call "%USERPROFILE%\mavenrc_pre.cmd" %* 51 | :skipRcPre 52 | 53 | @setlocal 54 | 55 | set ERROR_CODE=0 56 | 57 | @REM To isolate internal variables from possible post scripts, we use another setlocal 58 | @setlocal 59 | 60 | @REM ==== START VALIDATION ==== 61 | if not "%JAVA_HOME%" == "" goto OkJHome 62 | 63 | echo. 64 | echo Error: JAVA_HOME not found in your environment. >&2 65 | echo Please set the JAVA_HOME variable in your environment to match the >&2 66 | echo location of your Java installation. >&2 67 | echo. 68 | goto error 69 | 70 | :OkJHome 71 | if exist "%JAVA_HOME%\bin\java.exe" goto init 72 | 73 | echo. 74 | echo Error: JAVA_HOME is set to an invalid directory. >&2 75 | echo JAVA_HOME = "%JAVA_HOME%" >&2 76 | echo Please set the JAVA_HOME variable in your environment to match the >&2 77 | echo location of your Java installation. >&2 78 | echo. 79 | goto error 80 | 81 | @REM ==== END VALIDATION ==== 82 | 83 | :init 84 | 85 | @REM Find the project base dir, i.e. the directory that contains the folder ".mvn". 86 | @REM Fallback to current working directory if not found. 87 | 88 | set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR% 89 | IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir 90 | 91 | set EXEC_DIR=%CD% 92 | set WDIR=%EXEC_DIR% 93 | :findBaseDir 94 | IF EXIST "%WDIR%"\.mvn goto baseDirFound 95 | cd .. 96 | IF "%WDIR%"=="%CD%" goto baseDirNotFound 97 | set WDIR=%CD% 98 | goto findBaseDir 99 | 100 | :baseDirFound 101 | set MAVEN_PROJECTBASEDIR=%WDIR% 102 | cd "%EXEC_DIR%" 103 | goto endDetectBaseDir 104 | 105 | :baseDirNotFound 106 | set MAVEN_PROJECTBASEDIR=%EXEC_DIR% 107 | cd "%EXEC_DIR%" 108 | 109 | :endDetectBaseDir 110 | 111 | IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig 112 | 113 | @setlocal EnableExtensions EnableDelayedExpansion 114 | for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a 115 | @endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS% 116 | 117 | :endReadAdditionalConfig 118 | 119 | SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe" 120 | set WRAPPER_JAR="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar" 121 | set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain 122 | 123 | set DOWNLOAD_URL="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar" 124 | 125 | FOR /F "usebackq tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO ( 126 | IF "%%A"=="wrapperUrl" SET DOWNLOAD_URL=%%B 127 | ) 128 | 129 | @REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central 130 | @REM This allows using the maven wrapper in projects that prohibit checking in binary data. 131 | if exist %WRAPPER_JAR% ( 132 | if "%MVNW_VERBOSE%" == "true" ( 133 | echo Found %WRAPPER_JAR% 134 | ) 135 | ) else ( 136 | if not "%MVNW_REPOURL%" == "" ( 137 | SET DOWNLOAD_URL="%MVNW_REPOURL%/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar" 138 | ) 139 | if "%MVNW_VERBOSE%" == "true" ( 140 | echo Couldn't find %WRAPPER_JAR%, downloading it ... 141 | echo Downloading from: %DOWNLOAD_URL% 142 | ) 143 | 144 | powershell -Command "&{"^ 145 | "$webclient = new-object System.Net.WebClient;"^ 146 | "if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^ 147 | "$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_USERNAME%', '%MVNW_PASSWORD%');"^ 148 | "}"^ 149 | "[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"^ 150 | "}" 151 | if "%MVNW_VERBOSE%" == "true" ( 152 | echo Finished downloading %WRAPPER_JAR% 153 | ) 154 | ) 155 | @REM End of extension 156 | 157 | @REM Provide a "standardized" way to retrieve the CLI args that will 158 | @REM work with both Windows and non-Windows executions. 159 | set MAVEN_CMD_LINE_ARGS=%* 160 | 161 | %MAVEN_JAVA_EXE% ^ 162 | %JVM_CONFIG_MAVEN_PROPS% ^ 163 | %MAVEN_OPTS% ^ 164 | %MAVEN_DEBUG_OPTS% ^ 165 | -classpath %WRAPPER_JAR% ^ 166 | "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" ^ 167 | %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %* 168 | if ERRORLEVEL 1 goto error 169 | goto end 170 | 171 | :error 172 | set ERROR_CODE=1 173 | 174 | :end 175 | @endlocal & set ERROR_CODE=%ERROR_CODE% 176 | 177 | if not "%MAVEN_SKIP_RC%"=="" goto skipRcPost 178 | @REM check for post script, once with legacy .bat ending and once with .cmd ending 179 | if exist "%USERPROFILE%\mavenrc_post.bat" call "%USERPROFILE%\mavenrc_post.bat" 180 | if exist "%USERPROFILE%\mavenrc_post.cmd" call "%USERPROFILE%\mavenrc_post.cmd" 181 | :skipRcPost 182 | 183 | @REM pause the script if MAVEN_BATCH_PAUSE is set to 'on' 184 | if "%MAVEN_BATCH_PAUSE%"=="on" pause 185 | 186 | if "%MAVEN_TERMINATE_CMD%"=="on" exit %ERROR_CODE% 187 | 188 | cmd /C exit /B %ERROR_CODE% 189 | -------------------------------------------------------------------------------- /pom.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 4.0.0 5 | 6 | org.springframework.boot 7 | spring-boot-starter-parent 8 | 2.7.3 9 | 10 | 11 | com.example 12 | api-gateway-research 13 | 0.0.1-SNAPSHOT 14 | api-gateway-research 15 | api-gateway-research 16 | 17 | 17 18 | 1.7.10 19 | 2021.0.3 20 | 21 | 22 | 23 | org.springframework.boot 24 | spring-boot-starter-data-redis-reactive 25 | 26 | 27 | org.springframework.boot 28 | spring-boot-starter-actuator 29 | 30 | 31 | org.springframework.boot 32 | spring-boot-starter-validation 33 | 34 | 35 | org.springframework.boot 36 | spring-boot-starter-webflux 37 | 38 | 39 | com.fasterxml.jackson.module 40 | jackson-module-kotlin 41 | 42 | 43 | io.projectreactor.kotlin 44 | reactor-kotlin-extensions 45 | 46 | 47 | org.jetbrains.kotlin 48 | kotlin-reflect 49 | 50 | 51 | org.jetbrains.kotlin 52 | kotlin-stdlib-jdk8 53 | 54 | 55 | org.jetbrains.kotlinx 56 | kotlinx-coroutines-reactor 57 | 58 | 59 | org.springframework.cloud 60 | spring-cloud-starter-circuitbreaker-reactor-resilience4j 61 | 62 | 63 | io.github.resilience4j 64 | resilience4j-kotlin 65 | 66 | 67 | io.github.resilience4j 68 | resilience4j-all 69 | 70 | 71 | org.springframework.cloud 72 | spring-cloud-starter-gateway 73 | 74 | 75 | 76 | io.micrometer 77 | micrometer-registry-prometheus 78 | runtime 79 | 80 | 81 | org.springframework.boot 82 | spring-boot-configuration-processor 83 | true 84 | 85 | 86 | org.projectlombok 87 | lombok 88 | true 89 | 90 | 91 | org.springframework.boot 92 | spring-boot-starter-test 93 | test 94 | 95 | 96 | io.projectreactor 97 | reactor-test 98 | test 99 | 100 | 101 | 102 | 103 | 104 | org.springframework.cloud 105 | spring-cloud-dependencies 106 | ${spring-cloud.version} 107 | pom 108 | import 109 | 110 | 111 | 112 | 113 | 114 | ${project.basedir}/src/main/kotlin 115 | ${project.basedir}/src/test/kotlin 116 | 117 | 118 | org.springframework.boot 119 | spring-boot-maven-plugin 120 | 121 | 122 | 123 | org.projectlombok 124 | lombok 125 | 126 | 127 | 128 | 129 | 130 | org.jetbrains.kotlin 131 | kotlin-maven-plugin 132 | 133 | 134 | -Xjsr305=strict 135 | 136 | 137 | spring 138 | 139 | 140 | 141 | 142 | kapt 143 | 144 | kapt 145 | 146 | 147 | 148 | src/main/kotlin 149 | 150 | 151 | 152 | org.springframework.boot 153 | spring-boot-configuration-processor 154 | 2.7.3 155 | 156 | 157 | 158 | 159 | 160 | 161 | 162 | org.jetbrains.kotlin 163 | kotlin-maven-allopen 164 | ${kotlin.version} 165 | 166 | 167 | 168 | 169 | 170 | 171 | 172 | -------------------------------------------------------------------------------- /src/main/kotlin/com/example/apigatewayresearch/ApiGatewayResearchApplication.kt: -------------------------------------------------------------------------------- 1 | package com.example.apigatewayresearch 2 | 3 | import com.example.apigatewayresearch.properties.RateLimiterMetricProperties 4 | import org.springframework.boot.autoconfigure.SpringBootApplication 5 | import org.springframework.boot.context.properties.EnableConfigurationProperties 6 | import org.springframework.boot.runApplication 7 | import org.springframework.scheduling.annotation.EnableScheduling 8 | 9 | @EnableScheduling 10 | @SpringBootApplication 11 | @EnableConfigurationProperties( 12 | RateLimiterMetricProperties::class 13 | ) 14 | class ApiGatewayResearchApplication 15 | 16 | fun main(args: Array) { 17 | runApplication(*args) 18 | } 19 | -------------------------------------------------------------------------------- /src/main/kotlin/com/example/apigatewayresearch/controller/ErrorController.kt: -------------------------------------------------------------------------------- 1 | package com.example.apigatewayresearch.controller 2 | 3 | import io.github.resilience4j.ratelimiter.RequestNotPermitted 4 | import org.springframework.web.bind.annotation.ExceptionHandler 5 | import org.springframework.web.bind.annotation.RestControllerAdvice 6 | 7 | @RestControllerAdvice 8 | class ErrorController { 9 | 10 | @ExceptionHandler(RequestNotPermitted::class) 11 | fun requestNotPermitted(requestNotPermitted: RequestNotPermitted): String { 12 | return "Ups" 13 | } 14 | 15 | } -------------------------------------------------------------------------------- /src/main/kotlin/com/example/apigatewayresearch/controller/ErrorPageController.kt: -------------------------------------------------------------------------------- 1 | package com.example.apigatewayresearch.controller 2 | 3 | import org.springframework.web.bind.annotation.GetMapping 4 | import org.springframework.web.bind.annotation.RestController 5 | import org.springframework.web.server.ServerWebExchange 6 | 7 | @RestController 8 | class ErrorPageController { 9 | 10 | @GetMapping("/error") 11 | fun errorPage(serverWebExchange: ServerWebExchange): String { 12 | return "Ups" 13 | } 14 | } -------------------------------------------------------------------------------- /src/main/kotlin/com/example/apigatewayresearch/exception/NoRequestException.kt: -------------------------------------------------------------------------------- 1 | package com.example.apigatewayresearch.exception 2 | 3 | class NoRequestException(message: String) : RuntimeException(message) -------------------------------------------------------------------------------- /src/main/kotlin/com/example/apigatewayresearch/filter/ExceptionGlobalFilter.kt: -------------------------------------------------------------------------------- 1 | package com.example.apigatewayresearch.filter 2 | 3 | import io.github.resilience4j.ratelimiter.RequestNotPermitted 4 | import org.springframework.cloud.gateway.filter.GatewayFilterChain 5 | import org.springframework.cloud.gateway.filter.GlobalFilter 6 | import org.springframework.core.Ordered 7 | import org.springframework.core.io.buffer.DataBuffer 8 | import org.springframework.http.HttpStatus 9 | import org.springframework.stereotype.Component 10 | import org.springframework.web.server.ServerWebExchange 11 | import reactor.core.publisher.Mono 12 | import java.nio.charset.StandardCharsets 13 | 14 | @Component 15 | class ExceptionGlobalFilter : GlobalFilter, Ordered { 16 | 17 | override fun filter(exchange: ServerWebExchange, chain: GatewayFilterChain): Mono { 18 | return chain.filter(exchange) 19 | .onErrorResume(RequestNotPermitted::class.java) { 20 | exchange.response.statusCode = HttpStatus.TOO_MANY_REQUESTS 21 | exchange.response.headers.add("X-Rate-Limit-Error", "true") 22 | exchange.response.headers.add("Content-Type", "text/html") 23 | 24 | val errorResponse: ByteArray = "Too Many Request".toByteArray(StandardCharsets.UTF_8) 25 | val buffer: DataBuffer = exchange.response.bufferFactory().wrap(errorResponse) 26 | 27 | exchange.response.writeWith(Mono.just(buffer)) 28 | } 29 | } 30 | 31 | override fun getOrder(): Int { 32 | return -1 33 | } 34 | } -------------------------------------------------------------------------------- /src/main/kotlin/com/example/apigatewayresearch/filter/RateLimiterGatewayFilterFactory.kt: -------------------------------------------------------------------------------- 1 | package com.example.apigatewayresearch.filter 2 | 3 | import com.example.apigatewayresearch.model.RateLimiterConfig 4 | import io.github.resilience4j.ratelimiter.RateLimiterRegistry 5 | import io.github.resilience4j.reactor.ratelimiter.operator.RateLimiterOperator 6 | import org.springframework.cloud.gateway.filter.GatewayFilter 7 | import org.springframework.cloud.gateway.filter.factory.AbstractGatewayFilterFactory 8 | import org.springframework.stereotype.Component 9 | 10 | @Component 11 | class RateLimiterGatewayFilterFactory( 12 | val rateLimiterRegistry: RateLimiterRegistry 13 | ) : AbstractGatewayFilterFactory(RateLimiterConfig::class.java) { 14 | 15 | override fun apply(config: RateLimiterConfig): GatewayFilter { 16 | return GatewayFilter { exchange, chain -> 17 | chain.filter(exchange) 18 | .transformDeferred(RateLimiterOperator.of(rateLimiterRegistry.rateLimiter(config.rateLimiter))) 19 | } 20 | } 21 | } -------------------------------------------------------------------------------- /src/main/kotlin/com/example/apigatewayresearch/filter/TimeGatewayFilterFactory.kt: -------------------------------------------------------------------------------- 1 | package com.example.apigatewayresearch.filter 2 | 3 | import com.example.apigatewayresearch.model.RateLimiterConfig 4 | import com.example.apigatewayresearch.service.RateLimiterService 5 | import io.micrometer.core.instrument.MeterRegistry 6 | import org.springframework.cloud.gateway.filter.GatewayFilter 7 | import org.springframework.cloud.gateway.filter.factory.AbstractGatewayFilterFactory 8 | import org.springframework.stereotype.Component 9 | import reactor.core.publisher.Mono 10 | import java.util.concurrent.TimeUnit 11 | 12 | @Component 13 | class TimeGatewayFilterFactory( 14 | val rateLimiterService: RateLimiterService, 15 | val meterRegistry: MeterRegistry 16 | ) : AbstractGatewayFilterFactory(RateLimiterConfig::class.java) { 17 | 18 | override fun apply(config: RateLimiterConfig): GatewayFilter { 19 | return GatewayFilter { exchange, chain -> 20 | val startTime = System.currentTimeMillis() 21 | chain.filter(exchange) 22 | .then(Mono.defer { 23 | meterRegistry.counter("api_gateway_request_success_count", "rateLimiter", config.rateLimiter) 24 | .increment() 25 | 26 | val endTime = System.currentTimeMillis() 27 | val duration = endTime - startTime 28 | 29 | meterRegistry.timer("api_gateway_request_duration", "rateLimiter", config.rateLimiter) 30 | .record(duration, TimeUnit.MILLISECONDS) 31 | 32 | rateLimiterService.increase(config.rateLimiter, duration) 33 | }) 34 | } 35 | } 36 | 37 | } -------------------------------------------------------------------------------- /src/main/kotlin/com/example/apigatewayresearch/model/RateLimiterConfig.kt: -------------------------------------------------------------------------------- 1 | package com.example.apigatewayresearch.model 2 | 3 | class RateLimiterConfig { 4 | var rateLimiter: String = "default" 5 | } -------------------------------------------------------------------------------- /src/main/kotlin/com/example/apigatewayresearch/properties/RateLimiterMetricProperties.kt: -------------------------------------------------------------------------------- 1 | package com.example.apigatewayresearch.properties 2 | 3 | import org.springframework.boot.context.properties.ConfigurationProperties 4 | import java.time.Duration 5 | 6 | @ConfigurationProperties("rate-limiter") 7 | data class RateLimiterMetricProperties( 8 | var metrics: Map = mutableMapOf() 9 | ) { 10 | 11 | data class RateLimiterMetricDetailProperties( 12 | var maxLimitForPeriod: Int = 10, 13 | var minLimitForPeriod: Int = 10, 14 | var limitRefreshPeriod: Duration = Duration.ofMinutes(1), 15 | var slowDuration: Duration = Duration.ofMillis(500), 16 | ) 17 | 18 | } -------------------------------------------------------------------------------- /src/main/kotlin/com/example/apigatewayresearch/runner/RateLimiterRunner.kt: -------------------------------------------------------------------------------- 1 | package com.example.apigatewayresearch.runner 2 | 3 | import com.example.apigatewayresearch.properties.RateLimiterMetricProperties 4 | import com.example.apigatewayresearch.service.RateLimiterService 5 | import io.github.resilience4j.kotlin.ratelimiter.RateLimiterConfig 6 | import io.github.resilience4j.ratelimiter.RateLimiterRegistry 7 | import io.micrometer.core.instrument.Gauge 8 | import io.micrometer.core.instrument.MeterRegistry 9 | import org.springframework.boot.ApplicationArguments 10 | import org.springframework.boot.ApplicationRunner 11 | import org.springframework.stereotype.Component 12 | 13 | @Component 14 | class RateLimiterRunner( 15 | val rateLimiterMetricProperties: RateLimiterMetricProperties, 16 | val rateLimiterRegistry: RateLimiterRegistry, 17 | val meterRegistry: MeterRegistry, 18 | val rateLimiterService: RateLimiterService 19 | ) : ApplicationRunner { 20 | 21 | override fun run(args: ApplicationArguments?) { 22 | registerRateLimiters() 23 | registerRateLimiterMetrics() 24 | } 25 | 26 | private fun registerRateLimiters() { 27 | rateLimiterMetricProperties.metrics.forEach { (name, metric) -> 28 | RateLimiterConfig { 29 | limitForPeriod(getMaxLimitForPeriod(name, metric.maxLimitForPeriod)) 30 | limitRefreshPeriod(metric.limitRefreshPeriod) 31 | }.let { config -> 32 | rateLimiterRegistry.rateLimiter(name, config) 33 | } 34 | } 35 | } 36 | 37 | private fun getMaxLimitForPeriod(name: String, default: Int): Int { 38 | return rateLimiterService.getMaxLimit(name) 39 | .defaultIfEmpty(default) 40 | .block()!! 41 | } 42 | 43 | private fun registerRateLimiterMetrics() { 44 | rateLimiterMetricProperties.metrics.forEach { (name, metric) -> 45 | Gauge.builder("resilience4j.ratelimiter.limit_for_period") { 46 | rateLimiterRegistry.rateLimiter(name).rateLimiterConfig.limitForPeriod 47 | }.description("The limit for the period") 48 | .tag("rate_limiter", name) 49 | .register(meterRegistry) 50 | } 51 | } 52 | } -------------------------------------------------------------------------------- /src/main/kotlin/com/example/apigatewayresearch/scheduler/RateLimiterScheduler.kt: -------------------------------------------------------------------------------- 1 | package com.example.apigatewayresearch.scheduler 2 | 3 | import com.example.apigatewayresearch.exception.NoRequestException 4 | import com.example.apigatewayresearch.properties.RateLimiterMetricProperties 5 | import com.example.apigatewayresearch.service.RateLimiterService 6 | import io.github.resilience4j.ratelimiter.RateLimiterRegistry 7 | import org.springframework.scheduling.annotation.Scheduled 8 | import org.springframework.stereotype.Component 9 | import reactor.core.publisher.Mono 10 | 11 | 12 | @Component 13 | class RateLimiterScheduler( 14 | val rateLimiterRegistry: RateLimiterRegistry, 15 | val rateLimiterService: RateLimiterService, 16 | val rateLimiterMetricProperties: RateLimiterMetricProperties 17 | ) { 18 | 19 | @Scheduled(cron = "0 * * * * *") 20 | fun increaseRateLimiter() { 21 | rateLimiterMetricProperties.metrics.forEach { (name, metric) -> 22 | Mono.zip( 23 | rateLimiterService.isSlow(name), 24 | rateLimiterService.getMaxLimit(name) 25 | ) 26 | .flatMap { changeMaxLimit(it.t1, it.t2, metric, name) } 27 | .doOnSuccess { changeRateLimiterConfig(name, it) } 28 | .doOnError(NoRequestException::class.java) { println("No request, do nothing") } 29 | .then(rateLimiterService.reset(name)) 30 | .subscribe( 31 | { println("Success run scheduler") }, 32 | { println("Ups, exception happens ${it.message}") } 33 | ) 34 | } 35 | } 36 | 37 | private fun changeRateLimiterConfig(name: String, newLimit: Int): Unit { 38 | val rateLimit = rateLimiterRegistry.rateLimiter(name) 39 | if (newLimit != rateLimit.rateLimiterConfig.limitForPeriod) { 40 | println("change the limit to $newLimit") 41 | rateLimit.changeLimitForPeriod(newLimit) 42 | } 43 | } 44 | 45 | private fun changeMaxLimit( 46 | isSlow: Boolean, 47 | maxLimit: Int, 48 | metric: RateLimiterMetricProperties.RateLimiterMetricDetailProperties, 49 | name: String 50 | ) = if (isSlow) { 51 | println("is slow") 52 | decreaseLimit(maxLimit, metric, name) 53 | } else { 54 | println("is not slow") 55 | increaseLimit(maxLimit, metric, name) 56 | } 57 | 58 | private fun increaseLimit( 59 | maxLimit: Int, 60 | metric: RateLimiterMetricProperties.RateLimiterMetricDetailProperties, 61 | name: String 62 | ): Mono { 63 | return if (maxLimit >= metric.maxLimitForPeriod) { 64 | rateLimiterService.changeMaxLimit(name, metric.maxLimitForPeriod) 65 | } else { 66 | rateLimiterService.changeMaxLimit(name, maxLimit * 2) 67 | } 68 | } 69 | 70 | private fun decreaseLimit( 71 | maxLimit: Int, 72 | metric: RateLimiterMetricProperties.RateLimiterMetricDetailProperties, 73 | name: String 74 | ): Mono { 75 | val newMaxLimit = maxLimit / 2 76 | return if (newMaxLimit < metric.minLimitForPeriod) { 77 | rateLimiterService.changeMaxLimit(name, metric.minLimitForPeriod) 78 | } else { 79 | rateLimiterService.changeMaxLimit(name, newMaxLimit) 80 | } 81 | } 82 | } -------------------------------------------------------------------------------- /src/main/kotlin/com/example/apigatewayresearch/service/RateLimiterService.kt: -------------------------------------------------------------------------------- 1 | package com.example.apigatewayresearch.service 2 | 3 | import com.example.apigatewayresearch.exception.NoRequestException 4 | import com.example.apigatewayresearch.properties.RateLimiterMetricProperties 5 | import org.springframework.beans.factory.InitializingBean 6 | import org.springframework.data.redis.core.ReactiveStringRedisTemplate 7 | import org.springframework.stereotype.Component 8 | import reactor.core.publisher.Mono 9 | 10 | 11 | @Component 12 | class RateLimiterService( 13 | val rateLimiterMetricProperties: RateLimiterMetricProperties, 14 | val reactiveStringRedisTemplate: ReactiveStringRedisTemplate 15 | ) : InitializingBean { 16 | 17 | override fun afterPropertiesSet() { 18 | rateLimiterMetricProperties.metrics.forEach { (key, value) -> 19 | Mono.zip( 20 | reactiveStringRedisTemplate.opsForValue().setIfAbsent("${key}_duration", "0"), 21 | reactiveStringRedisTemplate.opsForValue().setIfAbsent("${key}_request", "0"), 22 | reactiveStringRedisTemplate.opsForValue().setIfAbsent("${key}_max_limit", value.maxLimitForPeriod.toString()), 23 | ).block() 24 | } 25 | } 26 | 27 | fun increase(key: String, duration: Long): Mono { 28 | return Mono.zip( 29 | reactiveStringRedisTemplate.opsForValue().increment("${key}_duration", duration), 30 | reactiveStringRedisTemplate.opsForValue().increment("${key}_request", 1) 31 | ).then() 32 | } 33 | 34 | fun reset(key: String): Mono { 35 | return Mono.zip( 36 | reactiveStringRedisTemplate.opsForValue().set("${key}_duration", "0"), 37 | reactiveStringRedisTemplate.opsForValue().set("${key}_request", "0") 38 | ).then() 39 | } 40 | 41 | fun isSlow(key: String): Mono { 42 | return Mono.zip( 43 | reactiveStringRedisTemplate.opsForValue().get("${key}_duration"), 44 | reactiveStringRedisTemplate.opsForValue().get("${key}_request") 45 | ).map { 46 | val duration = it.t1.toLong() 47 | val request = it.t2.toLong() 48 | val slowDuration = rateLimiterMetricProperties.metrics[key]!!.slowDuration.toMillis() 49 | 50 | if (request == 0L) { 51 | throw NoRequestException("No request for rate limiter $key") 52 | } else { 53 | duration / request > slowDuration 54 | } 55 | } 56 | } 57 | 58 | fun changeMaxLimit(key: String, maxLimit: Int): Mono { 59 | return reactiveStringRedisTemplate.opsForValue().set("${key}_max_limit", maxLimit.toString()) 60 | .thenReturn(maxLimit) 61 | } 62 | 63 | fun getMaxLimit(key: String): Mono { 64 | return reactiveStringRedisTemplate.opsForValue().get("${key}_max_limit") 65 | .map { it.toInt() } 66 | } 67 | 68 | } -------------------------------------------------------------------------------- /src/main/resources/application.properties: -------------------------------------------------------------------------------- 1 | server.port=8181 2 | 3 | spring.cloud.gateway.routes[0].id=test 4 | spring.cloud.gateway.routes[0].uri=http://localhost:8080/ 5 | spring.cloud.gateway.routes[0].predicates[0]=Path=/eko/** 6 | spring.cloud.gateway.routes[0].filters[0].name=Time 7 | spring.cloud.gateway.routes[0].filters[0].args.rateLimiter=test 8 | spring.cloud.gateway.routes[0].filters[1].name=RateLimiter 9 | spring.cloud.gateway.routes[0].filters[1].args.rateLimiter=test 10 | spring.cloud.gateway.routes[0].filters[2]=RewritePath=/eko/(?.*),/${segment} 11 | 12 | rate-limiter.metrics.test.limit-refresh-period=1m 13 | rate-limiter.metrics.test.max-limit-for-period=1000 14 | rate-limiter.metrics.test.min-limit-for-period=100 15 | rate-limiter.metrics.test.slow-duration=100ms 16 | 17 | rate-limiter.metrics.member.limit-refresh-period=1m 18 | rate-limiter.metrics.member.max-limit-for-period=1000 19 | rate-limiter.metrics.member.min-limit-for-period=100 20 | rate-limiter.metrics.member.slow-duration=100ms 21 | 22 | rate-limiter.metrics.order.limit-refresh-period=1m 23 | rate-limiter.metrics.order.max-limit-for-period=500 24 | rate-limiter.metrics.order.min-limit-for-period=50 25 | rate-limiter.metrics.order.slow-duration=100ms 26 | 27 | management.endpoints.web.exposure.include=health,prometheus,metrics -------------------------------------------------------------------------------- /src/test/kotlin/com/example/apigatewayresearch/ApiGatewayResearchApplicationTests.kt: -------------------------------------------------------------------------------- 1 | package com.example.apigatewayresearch 2 | 3 | import org.junit.jupiter.api.Test 4 | import org.springframework.boot.test.context.SpringBootTest 5 | 6 | @SpringBootTest 7 | class ApiGatewayResearchApplicationTests { 8 | 9 | @Test 10 | fun contextLoads() { 11 | } 12 | 13 | } 14 | -------------------------------------------------------------------------------- /src/test/kotlin/com/example/apigatewayresearch/RateLimiterTest.kt: -------------------------------------------------------------------------------- 1 | package com.example.apigatewayresearch 2 | 3 | import io.github.resilience4j.kotlin.ratelimiter.RateLimiterRegistry 4 | import org.junit.jupiter.api.Test 5 | 6 | 7 | class RateLimiterTest { 8 | 9 | @Test 10 | internal fun testRateLimiterSlow() { 11 | val registry = RateLimiterRegistry { } 12 | val rateLimiter = registry.rateLimiter("test") 13 | println(rateLimiter.rateLimiterConfig.limitForPeriod) 14 | rateLimiter.changeLimitForPeriod(rateLimiter.rateLimiterConfig.limitForPeriod * 2) 15 | println(rateLimiter.rateLimiterConfig.limitForPeriod) 16 | } 17 | } --------------------------------------------------------------------------------