diff --git a/.gitignore b/.gitignore
index 0c936630..20ce30f1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
+.idea
**/.DS_Store
**/.direnv/
/.vscode/
diff --git a/akka/.gitignore b/akka/.gitignore
new file mode 100644
index 00000000..ee44a963
--- /dev/null
+++ b/akka/.gitignore
@@ -0,0 +1,2 @@
+.idea
+target
diff --git a/akka/LICENSE b/akka/LICENSE
new file mode 100644
index 00000000..7a4a3ea2
--- /dev/null
+++ b/akka/LICENSE
@@ -0,0 +1,202 @@
+
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+ 1. Definitions.
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+ Licensed under the Apache License, Version 2.0 (the "License");
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+
+ Unless required by applicable law or agreed to in writing, software
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\ No newline at end of file
diff --git a/akka/Makefile b/akka/Makefile
new file mode 100644
index 00000000..7664e8fd
--- /dev/null
+++ b/akka/Makefile
@@ -0,0 +1,8 @@
+
+OPENAI_API_KEY := $(shell cat secret.openai-api-key)
+export OPENAI_API_KEY
+
+build-and-run:
+ docker rmi -f helloworld-agent:latest
+ mvn clean install -DskipTests -Pstandalone
+ docker compose up
\ No newline at end of file
diff --git a/akka/README.md b/akka/README.md
new file mode 100644
index 00000000..8148d191
--- /dev/null
+++ b/akka/README.md
@@ -0,0 +1,108 @@
+# ๐ง Akka SDK - AI Agent Demo
+
+This project demonstrates how to build a chat agent using the [AI Agent component](https://doc.akka.io/java/agents.html) of the [Akka SDK](https://doc.akka.io/).
+
+We use OpenAI as the LLM provider.
+
+The following components are used:
+
+- `HttpEndpoint` to serve the UI and to process http requests.
+- `Agent` with a system message to set the context for the prompt.
+ - Durable storage session based on the username.
+ - Streaming interaction with the LLM.
+
+
+
+
+
+# ๐ Getting Started
+
+### Requirements
+
++ Java 21
++ [Maven]
++ **[Docker Desktop] 4.43.0+ or [Docker Engine]** installed.
++ **A laptop or workstation** (e.g., a MacBook).
++ If you're using Docker Engine on Linux, ensure you have [Docker Compose] 2.38.1 or later installed.
++ An [OpenAI API Key](https://platform.openai.com/api-keys) ๐.
+
+### Run the project
+
+Create a `secret.openai-api-key` file with your OpenAI API key:
+
+```plaintext
+sk-...
+```
+
+Then run:
+
+```sh
+make build-and-run
+```
+
+Alternatively, you can run:
+```sh
+export OPENAI_API_KEY=
+mvn clean install -DskipTests -Pstandalone
+docker compose up
+```
+
+Everything runs from the container. Open `http://localhost:9000` in your browser to start to interact with the agent.
+
+# ๐ More
+
+This demo was created as part of a [webinar we did](https://akka.io/blog/webinar-creating-certainty-in-the-age-of-agentic-ai).
+
+Feel free to take a look if you want to go further. The app was
+- Created using vibe coding using Claude Desktop.
+- Exposing MCP endpoints.
+- Run locally with multiple instances forming a resilient cluster.
+
+To learn more, please visit our [getting started docs](https://doc.akka.io/getting-started/index.html) or check out [additional samples](https://github.com/akka-samples).
+
+# ๐งน Cleanup
+
+To stop and remove containers and volumes:
+
+```sh
+docker compose down -v
+```
+
+# ๐ง Architecture Overview
+
+```mermaid
+flowchart TD
+subgraph Browser
+localhost:9000
+end
+
+ subgraph Akka SDK
+ HttpUi[๐ฅ๏ธ UI]
+ HttpAgent[๐ฏ Agent http api]
+ Agent[๐ง Agent: session memory]
+ end
+
+ subgraph Open AI
+ LLM[(gpt-4o-mini)]
+ end
+
+ Browser -->|Http| HttpUi
+ Browser -->|Http| HttpAgent
+ HttpAgent -->|Akka ComponentClient| Agent
+ Agent -->|Streaming| LLM
+```
+
+๐ Credits
+
++ [Akka SDK Team]
++ [Akks SDK samples](https://github.com/akka-samples)
++ [Docker Compose]
+
+[Maven]: http://maven.apache.org/
+[Akka SDK Team]: https://docs.akka.io/
+[Docker Compose]: https://github.com/docker/compose
+[Docker Desktop]: https://www.docker.com/products/docker-desktop/
+[Docker Engine]: https://docs.docker.com/engine/
\ No newline at end of file
diff --git a/akka/compose.yml b/akka/compose.yml
new file mode 100644
index 00000000..6c77a150
--- /dev/null
+++ b/akka/compose.yml
@@ -0,0 +1,39 @@
+services:
+ postgres-db:
+ image: postgres:latest
+ container_name: postgres_db
+ ports:
+ - 5432:5432
+ environment:
+ POSTGRES_USER: postgres
+ POSTGRES_PASSWORD: postgres
+ healthcheck:
+ test: [ 'CMD', 'pg_isready', "-q", "-d", "postgres", "-U", "postgres" ]
+ interval: 5s
+ retries: 5
+ start_period: 5s
+ timeout: 5s
+
+ helloworld-agent:
+ image: helloworld-agent:latest
+ container_name: helloworld-agent
+ depends_on:
+ - postgres-db
+ ports:
+ - "9000:9000"
+ extra_hosts:
+ - "host.docker.internal:host-gateway"
+ volumes:
+ - ${HOME}/.akka/local:/root/.akka/local
+ - ./poststart.sh:/poststart.sh
+ environment:
+ # jvm -D properties can be added under this environment map (note: remove this comment when adding properties)
+ #JAVA_TOOL_OPTIONS: -Dconfig.resource=/root/.akka/local/api-key.conf
+ STANDALONE_SINGLE_NODE: true
+ DB_HOST: "postgres-db"
+ HTTP_PORT: "9000"
+ OPENAI_API_KEY: ${OPENAI_API_KEY}
+
+networks:
+ network:
+ driver: bridge
\ No newline at end of file
diff --git a/akka/demo.gif b/akka/demo.gif
new file mode 100644
index 00000000..817ac87c
Binary files /dev/null and b/akka/demo.gif differ
diff --git a/akka/pom.xml b/akka/pom.xml
new file mode 100644
index 00000000..959f123e
--- /dev/null
+++ b/akka/pom.xml
@@ -0,0 +1,17 @@
+
+
+ 4.0.0
+
+ io.akka
+ akka-javasdk-parent
+ 3.4.6
+
+
+ com.example
+ helloworld-agent
+ 1.0-SNAPSHOT
+ jar
+
+ helloworld-agent
+
+
diff --git a/akka/src/main/java/com/example/api/GreetingAgentEndpoint.java b/akka/src/main/java/com/example/api/GreetingAgentEndpoint.java
new file mode 100644
index 00000000..98374ba5
--- /dev/null
+++ b/akka/src/main/java/com/example/api/GreetingAgentEndpoint.java
@@ -0,0 +1,36 @@
+package com.example.api;
+
+import akka.http.javadsl.model.HttpResponse;
+import akka.http.javadsl.model.MediaTypes;
+import akka.http.javadsl.model.headers.ContentType;
+import akka.javasdk.annotations.Acl;
+import akka.javasdk.annotations.http.HttpEndpoint;
+import akka.javasdk.annotations.http.Post;
+import akka.javasdk.http.AbstractHttpEndpoint;
+import akka.javasdk.client.ComponentClient;
+import akka.javasdk.http.HttpResponses;
+import com.example.application.GreetingAgent;
+
+@HttpEndpoint("/chat")
+@Acl(allow = @Acl.Matcher(principal = Acl.Principal.ALL))
+public class GreetingAgentEndpoint extends AbstractHttpEndpoint {
+
+ private final ComponentClient componentClient;
+
+ public GreetingAgentEndpoint(ComponentClient componentClient) {
+ this.componentClient = componentClient;
+ }
+
+ public record QueryRequest(String userId, String question) {}
+
+ @Post("/ask")
+ public HttpResponse ask(QueryRequest request) {
+ var tokenStream = componentClient
+ .forAgent()
+ .inSession(request.userId())
+ .tokenStream(GreetingAgent::ask)
+ .source(request.question());
+
+ return HttpResponses.serverSentEvents(tokenStream);
+ }
+}
\ No newline at end of file
diff --git a/akka/src/main/java/com/example/api/UiEndpoint.java b/akka/src/main/java/com/example/api/UiEndpoint.java
new file mode 100644
index 00000000..887d1e54
--- /dev/null
+++ b/akka/src/main/java/com/example/api/UiEndpoint.java
@@ -0,0 +1,34 @@
+package com.example.api;
+
+import akka.actor.Cancellable;
+import akka.http.javadsl.model.HttpResponse;
+import akka.javasdk.agent.SessionHistory;
+import akka.javasdk.agent.SessionMemoryEntity;
+import akka.javasdk.agent.SessionMessage;
+import akka.javasdk.annotations.Acl;
+import akka.javasdk.annotations.http.Get;
+import akka.javasdk.annotations.http.HttpEndpoint;
+import akka.javasdk.client.ComponentClient;
+import akka.javasdk.http.HttpResponses;
+import akka.stream.javadsl.Source;
+
+import java.time.Duration;
+import java.time.Instant;
+import java.util.List;
+import java.util.Optional;
+
+/**
+ * This Http endpoint returns the static UI page located under
+ * src/main/resources/static-resources/
+ */
+@HttpEndpoint
+@Acl(allow = @Acl.Matcher(principal = Acl.Principal.ALL))
+public class UiEndpoint {
+
+ @Get("/")
+ public HttpResponse index() { return HttpResponses.staticResource("index.html"); }
+ @Get("/style.css")
+ public HttpResponse style() {
+ return HttpResponses.staticResource("style.css");
+ }
+}
diff --git a/akka/src/main/java/com/example/application/GreetingAgent.java b/akka/src/main/java/com/example/application/GreetingAgent.java
new file mode 100644
index 00000000..af17129a
--- /dev/null
+++ b/akka/src/main/java/com/example/application/GreetingAgent.java
@@ -0,0 +1,28 @@
+package com.example.application;
+
+import akka.javasdk.annotations.ComponentId;
+import akka.javasdk.agent.Agent;
+import akka.javasdk.agent.AgentContext;
+import akka.javasdk.agent.RemoteMcpTools;
+
+@ComponentId("greeting-agent")
+public class GreetingAgent extends Agent {
+
+ private static final String SYSTEM_MESSAGE =
+ "You are a helpful assistant that teaches greetings in different languages. " +
+ "The user must provide a language. Always append the language used in parentheses in English " +
+ "(e.g., \"Bonjour (French)\"). At the end of each response, append a list of previous greetings " +
+ "used in the current session. " +
+ "For the first interaction with a user, display a greeting with their name (e.g., \"Hello !\"). " +
+ "The user message format is 'userId:;question:'.";
+
+ public StreamEffect ask(String question) {
+ String userId = context().sessionId();
+ String formattedMessage = "userId:" + userId + ";question:" + question;
+
+ return streamEffects()
+ .systemMessage(SYSTEM_MESSAGE)
+ .userMessage(formattedMessage)
+ .thenReply();
+ }
+}
\ No newline at end of file
diff --git a/akka/src/main/resources/application.conf b/akka/src/main/resources/application.conf
new file mode 100644
index 00000000..b0ed46b3
--- /dev/null
+++ b/akka/src/main/resources/application.conf
@@ -0,0 +1,15 @@
+akka.javasdk {
+ agent {
+ # Other AI models can be configured, see https://doc.akka.io/java/agents.html#model
+ # and https://doc.akka.io/java/model-provider-details.html for the reference configurations.
+ model-provider = openai
+
+ openai {
+ model-name = "gpt-4o-mini"
+ # Environment variable override for the API key
+ #api-key = ${?OPENAI_API_KEY}
+ }
+ }
+}
+
+akka.javasdk.dev-mode.enabled = true
\ No newline at end of file
diff --git a/akka/src/main/resources/logback.xml b/akka/src/main/resources/logback.xml
new file mode 100644
index 00000000..8a8e0bb8
--- /dev/null
+++ b/akka/src/main/resources/logback.xml
@@ -0,0 +1,39 @@
+
+
+
+
+
+
+ %d{HH:mm:ss.SSS} %-5level %rewriteLogger{36} - %rewriteMsg%n
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/akka/src/main/resources/static-resources/index.html b/akka/src/main/resources/static-resources/index.html
new file mode 100644
index 00000000..b8af6df6
--- /dev/null
+++ b/akka/src/main/resources/static-resources/index.html
@@ -0,0 +1,401 @@
+
+
+
+
+
+ Akka's Chatbot
+
+
+
+
+
+
+
+