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Eclipse Leshan™ is an OMA Lightweight M2M server and client Java implementation.

What is OMA LWM2M ?
LWM2M Specifications.

Leshan provides libraries which help people to develop their own Lightweight M2M server and client.
The project also provides a client, a server and a bootstrap server demonstration as an example of the Leshan API and for testing purpose.

Release (stable and milestones) are available on maven central.
Nightly build (snapshot) are available on eclipse repo. (more details)

The Leshan Documentation is available in our wiki 📘.

Join the project mailing list : subscribe.
Mail address: [email protected].
Access to leshan-dev archives.

This work is dual-licensed under the Eclipse Public License v2.0 and Eclipse Distribution License v1.0

SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause

You can try live our servers demos instances:

• The lwm2m server at https://leshan.eclipseprojects.io/
  (coap://leshan.eclipseprojects.io:5683 and coaps://leshan.eclipseprojects.io:5684)
• The bootstrap server at https://leshan.eclipseprojects.io/bs/
  (coap://leshan.eclipseprojects.io:5783 and coaps://leshan.eclipseprojects.io:5784)

(Automatic deployment of master branch)

Get and run the last binary of our demo server :

wget https://ci.eclipse.org/leshan/job/leshan/lastSuccessfulBuild/artifact/leshan-server-demo.jar
java -jar ./leshan-server-demo.jar

Get and run the last binary of our demo client :

wget https://ci.eclipse.org/leshan/job/leshan/lastSuccessfulBuild/artifact/leshan-client-demo.jar
java -jar ./leshan-client-demo.jar

Get and run the last binary of our bootstrap demo server :

wget https://ci.eclipse.org/leshan/job/leshan/lastSuccessfulBuild/artifact/leshan-bsserver-demo.jar
java -jar ./leshan-bsserver-demo.jar

ℹ️ : All the demos have a --help option.

Get sources :

#using ssh
git clone [email protected]:eclipse/leshan.git

or

#using https
git clone https://github.com/eclipse/leshan.git

Compile it, by running in leshan root folder :

mvn clean install

Run demo server:

java -jar leshan-server-demo/target/leshan-server-demo-*-SNAPSHOT-jar-with-dependencies.jar 

Connect on Leshan demo UI: http://localhost:8080
Leshan server Demo provides a very simple UI to get the list of connected clients and interact with clients resources.

Now you can register a LWM2M client by running our client demo:

java -jar leshan-client-demo/target/leshan-client-demo-*-SNAPSHOT-jar-with-dependencies.jar 

or trying the Eclipse Wakaama test client.

You can also try our bootstrap demo server:

java -jar leshan-bsserver-demo/target/leshan-bsserver-demo-*-SNAPSHOT-jar-with-dependencies.jar 

Now you played a bit with our demo, you should start to code your own server or client using our Getting-started guide.