diff --git a/zenoh-ts/examples/src/main.ts b/zenoh-ts/examples/src/main.ts
index 9b06dfa..3db9c08 100644
--- a/zenoh-ts/examples/src/main.ts
+++ b/zenoh-ts/examples/src/main.ts
@@ -38,15 +38,15 @@ async function main() {
   let count = 0;
   while (true) {
     await sleep(1000 * 100);
-    console.log("Main Loop tick ", count);
+    console.warn("Main Loop tick ", count);
     count = count + 1;
   }
 }
 
 main()
-  .then(() => console.log("Done"))
+  .then(() => console.warn("Done"))
   .catch((e) => {
-    console.log(e);
+    console.warn(e);
     throw e;
   });
 
diff --git a/zenoh-ts/examples/src/z_get.ts b/zenoh-ts/examples/src/z_get.ts
index b2e4f7a..c999c6c 100644
--- a/zenoh-ts/examples/src/z_get.ts
+++ b/zenoh-ts/examples/src/z_get.ts
@@ -27,14 +27,14 @@ export async function get() {
     let resp = reply.result();
     if (resp instanceof Sample) {
       let sample: Sample = resp;
-      console.log(">> Received ('", sample.keyexpr(), ":", sample.payload().deserialize(deserialize_string),"')");
+      console.warn(">> Received ('", sample.keyexpr(), ":", sample.payload().deserialize(deserialize_string),"')");
     } else {
       let reply_error: ReplyError = resp;
-      console.log(">> Received (ERROR: '", reply_error.payload().deserialize(deserialize_string), "')");
+      console.warn(">> Received (ERROR: '", reply_error.payload().deserialize(deserialize_string), "')");
     }
   };
 
-  console.log("Start z_get")
+  console.warn("Start z_get")
   await session.get("demo/example/**", get_callback);
 
   // Poll receiever
@@ -46,15 +46,15 @@ export async function get() {
   let reply = await receiver.receive();
   while (reply != RecvErr.Disconnected) {
     if (reply == RecvErr.MalformedReply) {
-      console.log("MalformedReply");
+      console.warn("MalformedReply");
     } else {
       let resp = reply.result();
       if (resp instanceof Sample) {
         let sample: Sample = resp;
-        console.log(">> Received ('", sample.keyexpr(), ":", sample.payload().deserialize(deserialize_string),"')");
+        console.warn(">> Received ('", sample.keyexpr(), ":", sample.payload().deserialize(deserialize_string),"')");
       } else {
         let reply_error: ReplyError = resp;
-        console.log(">> Received (ERROR: '{", reply_error.payload().deserialize(deserialize_string), "}')");
+        console.warn(">> Received (ERROR: '{", reply_error.payload().deserialize(deserialize_string), "}')");
       }
     }
     reply = await receiver.receive();
diff --git a/zenoh-ts/examples/src/z_ping.ts b/zenoh-ts/examples/src/z_ping.ts
index ab3eae6..af5af26 100644
--- a/zenoh-ts/examples/src/z_ping.ts
+++ b/zenoh-ts/examples/src/z_ping.ts
@@ -31,7 +31,7 @@ export async function ping() {
   );
 
   // Warm up
-  console.log("Warming up for 5 seconds...");
+  console.warn("Warming up for 5 seconds...");
 
   let startTime = new Date();
   let data = [122, 101, 110, 111, 104];
@@ -52,7 +52,7 @@ export async function ping() {
 
   for (let i = 0; i < samples_out.length; i++) {
     let rtt = samples_out[i];
-    console.log(
+    console.warn(
       data.length +
       "bytes: seq=" +
       i +
diff --git a/zenoh-ts/examples/src/z_pub.ts b/zenoh-ts/examples/src/z_pub.ts
index c80be99..d90b2b2 100644
--- a/zenoh-ts/examples/src/z_pub.ts
+++ b/zenoh-ts/examples/src/z_pub.ts
@@ -37,8 +37,8 @@ export async function pub() {
   for (let idx = 0; idx < Number.MAX_VALUE; idx++) {
     let buf = `[${idx}] ${payload}`;
 
-    console.log("Block statement execution no : " + idx);
-    console.log(`Putting Data ('${key_expr}': '${buf}')...`);
+    console.warn("Block statement execution no : " + idx);
+    console.warn(`Putting Data ('${key_expr}': '${buf}')...`);
     publisher.put(buf, Encoding.TEXT_PLAIN, "attachment");
     await sleep(1000);
 
diff --git a/zenoh-ts/examples/src/z_put.ts b/zenoh-ts/examples/src/z_put.ts
index f2847fd..b93b883 100644
--- a/zenoh-ts/examples/src/z_put.ts
+++ b/zenoh-ts/examples/src/z_put.ts
@@ -17,7 +17,7 @@ import "./webpage.ts";
 import { Config, Session } from "@ZettaScaleLabs/zenoh-ts";
 
 export async function put() {
-  console.log('Running Zenoh Put !');
+  console.warn('Running Zenoh Put !');
 
   const session = await Session.open(new Config ("ws/127.0.0.1:10000"));
   session.put("demo/example/zenoh-ts-put", "Put from Typescript!");
diff --git a/zenoh-ts/examples/src/z_queryable.ts b/zenoh-ts/examples/src/z_queryable.ts
index 1301737..47dc958 100644
--- a/zenoh-ts/examples/src/z_queryable.ts
+++ b/zenoh-ts/examples/src/z_queryable.ts
@@ -21,7 +21,7 @@ import { Config, KeyExpr, Query, Queryable, Session, ZBytes } from "@ZettaScaleL
 export async function queryable() {
   const session = await Session.open(new Config ("ws/127.0.0.1:10000"));
   let key_expr = new KeyExpr("demo/example/zenoh-ts-queryable");
-  console.log("Declare Queryable on KeyExpr:", key_expr.toString());
+  console.warn("Declare Queryable on KeyExpr:", key_expr.toString());
 
   const payload = [122, 101, 110, 111, 104];
 
@@ -30,14 +30,14 @@ export async function queryable() {
     let zbytes: ZBytes | undefined = query.payload();
 
     if (zbytes == null) {
-      console.log!(`>> [Queryable ] Received Query ${query.selector()}`);
+      console.warn!(`>> [Queryable ] Received Query ${query.selector()}`);
     } else {
-      console.log!(
+      console.warn!(
         `>> [Queryable ] Received Query ${query.selector()} with payload '${zbytes}'`,
       );
     }
 
-    console.log(
+    console.warn(
       `>> [Queryable ] Responding ${key_expr.toString()} with payload '${payload}'`,
     );
     query.reply(key_expr, payload);
@@ -62,14 +62,14 @@ export async function queryable() {
     let zbytes: ZBytes | undefined = query.payload();
 
     if (zbytes == null) {
-      console.log!(`>> [Queryable ] Received Query ${query.selector().toString()}`);
+      console.warn!(`>> [Queryable ] Received Query ${query.selector().toString()}`);
     } else {
-      console.log!(
+      console.warn!(
         `>> [Queryable ] Received Query ${query.selector()} with payload '${zbytes.buffer()}'`,
       );
     }
 
-    console.log(
+    console.warn(
       `>> [Queryable ] Responding ${key_expr.toString()} with payload '${payload}'`,
     );
     query.reply(key_expr, payload);
diff --git a/zenoh-ts/examples/src/z_sub.ts b/zenoh-ts/examples/src/z_sub.ts
index dce1cf0..fc846a0 100644
--- a/zenoh-ts/examples/src/z_sub.ts
+++ b/zenoh-ts/examples/src/z_sub.ts
@@ -23,7 +23,7 @@ export async function sub() {
   const session = await Session.open(new Config ("ws/127.0.0.1:10000"));
 
   const callback = async function (sample: Sample): Promise<void> {
-    console.log!(
+    console.warn!(
       ">> [Subscriber] Received " +
       sample.kind() + " ('" +
       sample.keyexpr() + "': '" +
@@ -32,7 +32,7 @@ export async function sub() {
   };
 
   let key_expr = new KeyExpr("demo/example/zenoh-ts-sub");
-  console.log("Declare Subscriber ", key_expr.toString());
+  console.warn("Declare Subscriber ", key_expr.toString());
   // Callback Subscriber take a callback which will be called upon every sample received.
   let callback_subscriber: Subscriber = await session.declare_subscriber(
     key_expr,
@@ -41,7 +41,7 @@ export async function sub() {
 
   await sleep(1000 * 3);
   callback_subscriber.undeclare();
-  console.log("Undeclare callback_subscriber");
+  console.warn("Undeclare callback_subscriber");
 
   // Poll Subscribers will only consume data on calls to receieve()
   // This means that interally the FIFO queue will fill up to the point that new values will be dropped
@@ -49,7 +49,7 @@ export async function sub() {
   let poll_subscriber: Subscriber = await session.declare_subscriber("demo/example/zenoh-ts-sub", new RingChannel(10));
   let sample = await poll_subscriber.receive();
   while (sample != undefined) {
-    console.log!(
+    console.warn!(
       ">> [Subscriber] Received " +
       sample.kind() + " ('" +
       sample.keyexpr() + "': '" +
diff --git a/zenoh-ts/examples/src/z_sub_thr.ts b/zenoh-ts/examples/src/z_sub_thr.ts
index d33088d..c6b01b2 100644
--- a/zenoh-ts/examples/src/z_sub_thr.ts
+++ b/zenoh-ts/examples/src/z_sub_thr.ts
@@ -52,19 +52,19 @@ class Stats {
   print_round() {
     let elapsed_ms = Date.now() - this.round_start;
     let throughput = (this.round_size) / (elapsed_ms / 1000);
-    console.log(throughput, " msg/s");
+    console.warn(throughput, " msg/s");
   }
 }
 
 export async function thr() {
-  console.log("Open Session");
+  console.warn("Open Session");
   const session : Session = await Session.open(new Config ("ws/127.0.0.1:10000"));
   let stats = new Stats(100000);
   const subscriber_callback = async function (_sample: Sample): Promise<void> {
     stats.increment();
   };
 
-  console.log("Declare subscriber");
+  console.warn("Declare subscriber");
   await session.declare_subscriber(
     "test/thr",
     subscriber_callback,
@@ -74,7 +74,7 @@ export async function thr() {
   while (true) {
     var seconds = 100;
     await sleep(1000 * seconds);
-    console.log("Main Loop ? ", count);
+    console.warn("Main Loop ? ", count);
     count = count + 1;
   }
 }
diff --git a/zenoh-ts/src/pubsub.ts b/zenoh-ts/src/pubsub.ts
index c61d921..55581ab 100644
--- a/zenoh-ts/src/pubsub.ts
+++ b/zenoh-ts/src/pubsub.ts
@@ -81,7 +81,7 @@ export class Subscriber {
    */
   async receive(): Promise<Sample | void> {
     if (this.callback_subscriber === true) {
-      console.log("Cannot call `receive()` on Subscriber created with callback:");
+      console.warn("Cannot call `receive()` on Subscriber created with callback:");
       return;
     }
 
@@ -90,7 +90,7 @@ export class Subscriber {
     if (opt_sample_ws != undefined) {
       return Sample_from_SampleWS(opt_sample_ws);
     } else {
-      console.log("Receieve returned unexpected void from RemoteSubscriber");
+      console.warn("Receieve returned unexpected void from RemoteSubscriber");
       return;
     }
   }
diff --git a/zenoh-ts/src/query.ts b/zenoh-ts/src/query.ts
index 37623b7..eb5f1e3 100644
--- a/zenoh-ts/src/query.ts
+++ b/zenoh-ts/src/query.ts
@@ -73,7 +73,7 @@ export class Queryable {
 
     if (this._callback_queryable === true) {
       let message = "Cannot call `receive()` on Subscriber created with callback:";
-      console.log(message);
+      console.warn(message);
       return
     }
 
@@ -84,7 +84,7 @@ export class Queryable {
       let reply_tx = opt_query_ws[1];
       return QueryWS_to_Query(query_ws, reply_tx);
     } else {
-      console.log("Receieve returned unexpected void from RemoteQueryable");
+      console.warn("Receieve returned unexpected void from RemoteQueryable");
       return;
     }
   }
diff --git a/zenoh-ts/src/remote_api/pubsub.ts b/zenoh-ts/src/remote_api/pubsub.ts
index dd49edc..4f26f9f 100644
--- a/zenoh-ts/src/remote_api/pubsub.ts
+++ b/zenoh-ts/src/remote_api/pubsub.ts
@@ -65,7 +65,7 @@ export class RemotePublisher {
         "` id:`" +
         this.publisher_id +
         "` already undeclared";
-      console.log(message);
+      console.warn(message);
       return;
     }
 
@@ -93,7 +93,7 @@ export class RemotePublisher {
         "` id:`" +
         this.publisher_id +
         "` already undeclared";
-      console.log(message);
+      console.warn(message);
       return;
     }
     this.undeclared = true;
@@ -163,7 +163,7 @@ export class RemoteSubscriber {
 
   async receive(): Promise<SampleWS | void> {
     if (this.undeclared == true) {
-      console.log("Subscriber keyexpr:`" +
+      console.warn("Subscriber keyexpr:`" +
         this.key_expr +
         "` id:`" +
         this.subscriber_id +
@@ -172,7 +172,7 @@ export class RemoteSubscriber {
     }
 
     if (this.callback != undefined) {
-      console.log("Cannot Call receive on Subscriber created with callback:`" +
+      console.warn("Cannot Call receive on Subscriber created with callback:`" +
         this.key_expr +
         "` id:`" +
         this.subscriber_id +
@@ -185,7 +185,7 @@ export class RemoteSubscriber {
 
   undeclare() {
     if (this.undeclared == true) {
-      console.log("Subscriber keyexpr:`" +
+      console.warn("Subscriber keyexpr:`" +
         this.key_expr +
         "` id:`" +
         this.subscriber_id +
diff --git a/zenoh-ts/src/remote_api/query.ts b/zenoh-ts/src/remote_api/query.ts
index 3ada453..85f40c4 100644
--- a/zenoh-ts/src/remote_api/query.ts
+++ b/zenoh-ts/src/remote_api/query.ts
@@ -107,7 +107,7 @@ export class RemoteQueryable {
 
   async receive(): Promise<[QueryWS, SimpleChannel<QueryReplyWS>] | void> {
     if (this.undeclared == true) {
-      console.log("Queryable keyexpr:`" +
+      console.warn("Queryable keyexpr:`" +
         this.key_expr +
         "` id:`" +
         this.queryable_id +
@@ -116,7 +116,7 @@ export class RemoteQueryable {
     }
 
     if (this.callback != undefined) {
-      console.log("Cannot Call receive on Queryable created with callback:`" +
+      console.warn("Cannot Call receive on Queryable created with callback:`" +
         this.key_expr +
         "` id:`" +
         this.queryable_id +
@@ -129,7 +129,7 @@ export class RemoteQueryable {
 
   undeclare() {
     if (this.undeclared == true) {
-      console.log("Queryable keyexpr:`" +
+      console.warn("Queryable keyexpr:`" +
         this.key_expr +
         "` id:`" +
         this.queryable_id +
diff --git a/zenoh-ts/src/remote_api/session.ts b/zenoh-ts/src/remote_api/session.ts
index 8cfb1bc..48a15a2 100644
--- a/zenoh-ts/src/remote_api/session.ts
+++ b/zenoh-ts/src/remote_api/session.ts
@@ -119,7 +119,7 @@ export class RemoteSession {
         websocket_connected = true;
       } else {
         ws = new WebSocket(websocket_endpoint);
-        console.log("Restart connection");
+        console.warn("Restart connection");
       }
     }
 
@@ -348,7 +348,7 @@ export class RemoteSession {
       ) as RemoteAPIMsg;
 
       if ("Session" in remote_api_message) {
-        console.log("Continue Ignore Session Messages");
+        console.warn("Continue Ignore Session Messages");
         continue;
       } else if ("Control" in remote_api_message) {
         this.handle_control_message(remote_api_message["Control"]);
@@ -363,12 +363,12 @@ export class RemoteSession {
         );
       }
     }
-    console.log("Closed");
+    console.warn("Closed");
   }
 
   private async handle_control_message(control_msg: ControlMsg) {
     if (typeof control_msg === "string") {
-      console.log("unhandled Control Message:", control_msg);
+      console.warn("unhandled Control Message:", control_msg);
     } else if (typeof control_msg === "object") {
       if ("Session" in control_msg) {
         this.session = control_msg["Session"];
@@ -391,7 +391,7 @@ export class RemoteSession {
         let sample: SampleWS = data_msg["Sample"][0];
         channel.send(sample);
       } else {
-        console.log("Subscrption UUID not in map", subscription_uuid);
+        console.warn("Subscrption UUID not in map", subscription_uuid);
       }
     } else if ("GetReply" in data_msg) {
       let get_reply: ReplyWS = data_msg["GetReply"];
@@ -412,17 +412,17 @@ export class RemoteSession {
           let query = queryable_msg.Query.query;
           channel.send(query);
         } else {
-          console.log("Queryable Message UUID not in map", queryable_uuid);
+          console.warn("Queryable Message UUID not in map", queryable_uuid);
         }
       } else if ("Reply" in queryable_msg) {
         // Server
-        console.log("Client should not receive Reply in Queryable Message");
-        console.log("Replies to get queries should come via Get Reply");
+        console.warn("Client should not receive Reply in Queryable Message");
+        console.warn("Replies to get queries should come via Get Reply");
       } else {
-        console.log("Queryable message Variant not recognized");
+        console.warn("Queryable message Variant not recognized");
       }
     } else {
-      console.log("Data Message not recognized Expected Variant", data_msg);
+      console.warn("Data Message not recognized Expected Variant", data_msg);
     }
   }
 }
diff --git a/zenoh-ts/src/sample.ts b/zenoh-ts/src/sample.ts
index a6217ea..f9fb145 100644
--- a/zenoh-ts/src/sample.ts
+++ b/zenoh-ts/src/sample.ts
@@ -147,7 +147,7 @@ export function priority_from_int(prio_u8: number): Priority {
     case 7:
       return Priority.BACKGROUND;
     default:
-      console.log("Unknown Priority Variant, default to Data");
+      console.warn("Unknown Priority Variant, default to Data");
       return Priority.DATA;
   }
 }
@@ -334,7 +334,7 @@ export function SampleWS_from_Sample(
   } else if (sample.kind() == SampleKind.PUT) {
     sample_kind = "Put";
   } else {
-    console.log(
+    console.warn(
       "Sample Kind not PUT | DELETE, defaulting to PUT: ",
       sample.kind(),
     );