diff --git a/chats/rdflib/CHANGELOG.md b/chats/rdflib/CHANGELOG.md
index ee629d5..7f7b989 100644
--- a/chats/rdflib/CHANGELOG.md
+++ b/chats/rdflib/CHANGELOG.md
@@ -5,6 +5,10 @@ All notable changes to this module will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres
 to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+
+- [postMessage](https://solid-contrib.github.io/data-modules/chats-rdflib-api/interfaces/ChatsModule.html#postMessage)
+
 ## 0.4.0
 
 - [readChat](https://solid-contrib.github.io/data-modules/chats-rdflib-api/interfaces/ChatsModule.html#readChat)
diff --git a/chats/rdflib/examples/post-message.mjs b/chats/rdflib/examples/post-message.mjs
new file mode 100644
index 0000000..fc614f8
--- /dev/null
+++ b/chats/rdflib/examples/post-message.mjs
@@ -0,0 +1,22 @@
+import ChatsModule from "../dist/index.js";
+import { Fetcher, graph, UpdateManager } from "rdflib";
+import { faker } from "@faker-js/faker";
+
+const store = graph();
+const fetcher = new Fetcher(store);
+const updater = new UpdateManager(store);
+
+const module = new ChatsModule({ store, fetcher, updater });
+
+const chatUri = "http://localhost:3000/alice/public/chats/lobby/index.ttl#this";
+
+await module.postMessage({
+  chatUri,
+  text: `${faker.word.noun()} ${faker.word.verb()} ${faker.word.adverb()}`,
+  authorWebId: "https://localhost:3000/alice/profile/card#me"
+});
+
+const chat = await module.readChat(chatUri);
+
+console.log(chat.name);
+console.table(chat.latestMessages);
\ No newline at end of file