JS Service Development Workflow

This page outlines the steps to develop JS services for webOS Open Source Edition (OSE).

External JS Services

To develop an external JS service, the Command-Line Interface (CLI) tool is used.

In general, the steps described in CLI Workflow are applied.

For a step-by-step tutorial, see Developing External JS Services.

Built-in JS Services

Developing a built-in JS service requires the following steps:

1. Implement

   • Writing the JS service code (<JS_service_name>.js)
   • Preparing README.md that describes the project

2. Configure

   • Configuring the service metadata file (package.json)
   • Preparing the LS2 configuration files, including a Service Configuration file, a Role file, and Permission files
   • Configuring the CMake build script (CMakeLists.txt)

3. Build

   • Writing a recipe to build the service on the Yocto build environment
   • Configuring the local source directory
   • Building the service

4. Run and verify

   • Installing and running the service on the target
   • Verifying the service functionality

5. Deploy

   • Adding the service to the webOS OSE build recipe
   • Building the webOS OSE image
   • Flashing the image to the target

For a step-by-step tutorial with detailed instructions, see Developing Built-in JS Services.