Lavkode

Web app low code library that makes it possible to write Web Apps using JSON or YAML.

Used internally in the Waveorb Web App Development Framework.

Install

npm i lavkode

Usage

var lowcode = require('lavkode')

// Page, including layout if specified
var html = await lowcode.page($, page)

// Actions
var result = await lowcode.action($, action)

Generally each section in the file refers to a directory in your app with the same name, so filters will look for files in the app/filters directory for example.

If you want to include files in a deep directory structure, use dot notation:

filters:
  - auth.user

If the reference is a directory, it will load all files in that directory in the order it exists on the disk.

If you want to control the sort order when including a directory, prefix each file name with a number:

app/filters/1-login.js
app/filters/2-require-admin.js

Pages

Pages have the following possible structure (example):

title: Example low code page
desc: This it the meta description
layout: main
filters:
  - authenticate
  - login-required
setups:
  - load-project-data
scripts:
  - handleClick
  - handleToggleSection
views:
  - hero
  - intro
  - content
  - outro

To build the page and return HTML, including layout, do this:

var html = await lowcode.page(page)

The default name for layouts is main, and will be used if not specified with the page.

Set layout: false to not use a layout.

Layouts

Layouts are used with pages and have a this structure:

head:
  - scripts
  - views
body:
  - scripts
  - views

Layouts are not built separately, but included if specified in pages.

To build the layout and return HTML, do this:

var html = await lowcode.layout(layout)

Actions

Actions have the following possible structure (example):

filters:
  - auth
  - require-account
flows:
  - do
  - something
allow:
  query:
    - id
deny:
  values:
    - password
validate:
  query:
    id:
      is: id
  values:
    name:
      is: string

# If db is used, it is stored in result
db:
  path: project/find

# Keep only these attributes from result
keep:
  - id
  - name

# Remove these attributes from result
remove:
  - email
  - password

# Explicit return
return:
  ok: 1

To build the layour and return HTML, do this:

var fn = await lowcode.action(action)

If the actions are named one of the following, they override the schema actions:

• create
• update
• delete
• upload
• find
• get
• search

License

Created and maintained by Eldøy Projects

MIT Licensed. Enjoy!