[Docs] Add "Application lifecycle"

[dhmlau]

Description

Proposal originated from PR: #3164

Application life cycle content should cover the following stages:

• Installation

• Create: includes scaffolding

  • download the cli module
  • create project skeleton
  • scaffold application, create model, add business logics in controller.

• Develop: Add more artifacts

  • start to add building blocks

• Build

  • part of npm start
  • build step will transpile everything to javascript

• Boot

  • app.boot()
  • load the artifact by convention from well know folders and populate into
    the application context

• Start

  • app.start()
  • LB application does the start event
  • activation of endpoints
  • start to listen on the transport and start to accept requests
  • lifecycle event, e.g. start a timer to clean up cache periodically

• Try and test?

  Build the app iteratively.
  How to debug your application (?)

• Request/Response processing
  <-- refer to this page when it's done -->

• Stop

  • deactivate the endpoints. shutting down the application

More focus on cli/references.

[stale]

This issue has been marked stale because it has not seen activity within six months. If you believe this to be in error, please contact one of the code owners, listed in the CODEOWNERS file at the top-level of this repository. This issue will be closed within 30 days of being stale.

[stale]

This issue has been marked stale because it has not seen activity within six months. If you believe this to be in error, please contact one of the code owners, listed in the CODEOWNERS file at the top-level of this repository. This issue will be closed within 30 days of being stale.

[stale]

This issue has been closed due to continued inactivity. Thank you for your understanding. If you believe this to be in error, please contact one of the code owners, listed in the CODEOWNERS file at the top-level of this repository.