diff --git a/samples/gradle-export-api/.gitignore b/samples/gradle-export-api/.gitignore
new file mode 100644
index 0000000000..2770962649
--- /dev/null
+++ b/samples/gradle-export-api/.gitignore
@@ -0,0 +1,4 @@
+.idea
+*.iml
+.gradle
+build
diff --git a/samples/gradle-export-api/README.md b/samples/gradle-export-api/README.md
new file mode 100644
index 0000000000..452433bf28
--- /dev/null
+++ b/samples/gradle-export-api/README.md
@@ -0,0 +1,26 @@
+# Fetch build metrics
+
+In this Kotlin example, the app listens to new build events and fetches data
+
+## Concepts
+
+- Build streaming
+- Retrieving build events for a build
+
+## Setup
+
+To run this sample:
+
+1. Replace `id`, `password`, `baseUrl` values in [`FetchBuildData.kt`][FetchBuildData] with your Gradle Enterprise hostname and credentials.
+2. Open a terminal window.
+3. Run `./gradlew run` from the command line.
+
+Sample output:
+```
+> Task :run
+Start listening to build events
+
+onOpen Response{protocol=http/1.1, code=200, message=OK, url=https://enterprise-training.gradle.com/build-export/v1/builds/since/now?stream}
+```
+
+[FetchBuildData]: src/main/kotlin/ftl/sample/FetchBuildData.kt
diff --git a/samples/gradle-export-api/build.gradle.kts b/samples/gradle-export-api/build.gradle.kts
new file mode 100644
index 0000000000..aa2d318e9a
--- /dev/null
+++ b/samples/gradle-export-api/build.gradle.kts
@@ -0,0 +1,31 @@
+plugins {
+    application
+    kotlin("jvm") version "1.3.72"
+}
+
+group = "ftl.sample"
+version = "1.0-SNAPSHOT"
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    implementation(kotlin("stdlib-jdk8"))
+    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.7")
+    implementation("com.squareup.okhttp3:okhttp:4.8.0")
+    implementation("com.squareup.okhttp3:okhttp-sse:4.8.0")
+}
+
+tasks {
+    compileKotlin {
+        kotlinOptions.jvmTarget = "1.8"
+    }
+    compileTestKotlin {
+        kotlinOptions.jvmTarget = "1.8"
+    }
+}
+
+application {
+    mainClassName = "ftl.sample.FetchBuildDataKt"
+}
diff --git a/samples/gradle-export-api/gradle/wrapper/gradle-wrapper.jar b/samples/gradle-export-api/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000000..f3d88b1c2f
Binary files /dev/null and b/samples/gradle-export-api/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/samples/gradle-export-api/gradle/wrapper/gradle-wrapper.properties b/samples/gradle-export-api/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000000..1b16c34a71
--- /dev/null
+++ b/samples/gradle-export-api/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/samples/gradle-export-api/gradlew b/samples/gradle-export-api/gradlew
new file mode 100755
index 0000000000..2fe81a7d95
--- /dev/null
+++ b/samples/gradle-export-api/gradlew
@@ -0,0 +1,183 @@
+#!/usr/bin/env sh
+
+#
+# Copyright 2015 the original author or authors.
+#
+# Licensed 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.
+#
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+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"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+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
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=`expr $i + 1`
+    done
+    case $i in
+        0) set -- ;;
+        1) set -- "$args0" ;;
+        2) set -- "$args0" "$args1" ;;
+        3) set -- "$args0" "$args1" "$args2" ;;
+        4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=`save "$@"`
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+exec "$JAVACMD" "$@"
diff --git a/samples/gradle-export-api/gradlew.bat b/samples/gradle-export-api/gradlew.bat
new file mode 100644
index 0000000000..24467a141f
--- /dev/null
+++ b/samples/gradle-export-api/gradlew.bat
@@ -0,0 +1,100 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem 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, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/samples/gradle-export-api/settings.gradle.kts b/samples/gradle-export-api/settings.gradle.kts
new file mode 100644
index 0000000000..0eb0232ec5
--- /dev/null
+++ b/samples/gradle-export-api/settings.gradle.kts
@@ -0,0 +1 @@
+rootProject.name = "gradle-export-api"
diff --git a/samples/gradle-export-api/src/main/kotlin/ftl/sample/FetchBuildData.kt b/samples/gradle-export-api/src/main/kotlin/ftl/sample/FetchBuildData.kt
new file mode 100644
index 0000000000..7c16a79e08
--- /dev/null
+++ b/samples/gradle-export-api/src/main/kotlin/ftl/sample/FetchBuildData.kt
@@ -0,0 +1,61 @@
+package ftl.sample
+
+import okhttp3.Authenticator
+import okhttp3.Credentials
+import okhttp3.OkHttpClient
+import okhttp3.Response
+import okhttp3.Request
+import okhttp3.Route
+import okhttp3.sse.EventSource
+import okhttp3.sse.EventSourceListener
+import okhttp3.sse.EventSources.createFactory
+import java.time.Duration
+
+fun main() {
+    val id = ""
+    val password = ""
+    val baseUrl = "https://enterprise-training.gradle.com"
+    val url = "$baseUrl/build-export/v1/builds/since/now?stream"
+
+    val client = OkHttpClient.Builder()
+            .connectTimeout(Duration.ZERO)
+            .readTimeout(Duration.ZERO)
+            .authenticator(
+                    object : Authenticator {
+                        override fun authenticate(route: Route?, response: Response): Request? {
+                            return response.request
+                                    .newBuilder()
+                                    .addHeader("Authorization", Credentials.basic(id, password))
+                                    .build()
+                        }
+                    }
+            ).build()
+
+    val factory = createFactory(client)
+
+    val request = Request.Builder()
+            .url(url).build()
+    val listener = object : EventSourceListener() {
+        override fun onClosed(eventSource: EventSource) {
+            println("onClosed")
+            super.onClosed(eventSource)
+        }
+
+        override fun onEvent(eventSource: EventSource, id: String?, type: String?, data: String) {
+            println("onEvent $id $type $data")
+            super.onEvent(eventSource, id, type, data)
+        }
+
+        override fun onFailure(eventSource: EventSource, t: Throwable?, response: Response?) {
+            println("onFailure $t $response")
+            super.onFailure(eventSource, t, response)
+        }
+
+        override fun onOpen(eventSource: EventSource, response: Response) {
+            println("Start listening for build events\n")
+            println("onOpen $response")
+            super.onOpen(eventSource, response)
+        }
+    }
+    factory.newEventSource(request, listener)
+}