wings-feathers
v4.0.10
Published
A FeathersJS 4-Way reactive data sync for any frontend framework
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Welcome to Wings-Feathers!
A FeathersJS 4-Way reactive data sync for any frontend framework
- [x] DOM / UI (HTML)
- [x] Data / State (Javascript)
- [x] Local Storage (Offline)
- [x] Backend/Database (Cloud)
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Installation
npm install wings-feathers
or
yarn add wings-feathers
Usage
import wings from 'wings-feathers'
// const wings = require('wings-feathers').default
let app = wings('http://localhost:3030')
let messagesSrvc = app.wingsService('messages')
messagesSrvc.on('dataChange', (messages) => {
console.log(messages)
})
messagesSrvc.init()
app.wingsService(serviceName, params, config)
Returns a wingsService <object>
| Param| Type | Description |
|--|--|--|
| serviceName | <string>
| Name of service |
| params.query | <object>
| ( Optional ) Refer to Feathers Querying |
| config | <object>
| ( Optional ) Configuration of wingsService <object>
|
| config.channels | <array>
| ( Optional ) Array of channel objects |
params.query <object>
Refer to Feathers Querying
/* example records
[
{ text: 'Hello', read: true, roomId: 1, nested: { prop: 'xander' } },
{ text: 'World', read: false, roomId: 2, nested: { prop: 'ford' } }
]
*/
let serviceName = 'message'
let params = {
query: {
read: false,
roomId: 2
}
}
let messagesSrvc = app.wingsService(serviceName, params)
messagesSrvc.on('dataChange', (messages) => {
console.log(messages)
// [ { text: 'World', read: false, roomId: 2, nested: { prop: 'ford' } } ]
})
config <object>
| Property | Type | Default | Description |
|--|--|--|--|
| debug | <boolean>
| false | Logs all events init
, created
, removed
, patched
, updated
, loadMore
, reset
|
| newDataPosition | <string>
| 'end' | Add new items to the start
or end
of an array |
| paginate | <boolean>
| false | Enable pagination based on $limit
. **default is 10 records per page |
| channels | <array>
| [] | Refer to channels |
let config = {
debug: true,
newDataPosition: 'start',
paginate: true,
channels: []
}
let messagesSrvc = app.wingsService(serviceName, params, config)
config.channels <array>
and channel <object>
Channels determine which records to receive that passes the prop === value .
| Property | Type | Description |
|--|--|--|
| prop | <string>
| Name of record's property |
| value | <string | number | boolean | function>
| Equality test value |
| value | <function>
| callback
accepts (val, message)
arguments for custom test. **Must return a boolean value |
/* example records
[
{ text: 'Hello', read: true, roomId: 1, nested: { prop: 'xander' } },
{ text: 'World', read: false, roomId: 2, nested: { prop: 'ford' } }
]
*/
let config = {
channels: [
{ prop: 'roomId', value: 2},
{ prop: 'nested.prop', value: 'ford'},
{ prop: 'nested', value: (val) => val.prop === 'ford' }
]
}
let messagesSrvc = app.wingsService(serviceName, params, config)
You may use dot notation in prop as reference into the object's property
reset(params, config)
set new params
, config
and triggers init
method
let params = {
query: {
read: false,
roomId: 2
}
}
let config = {
debug: true,
newDataPosition: 'start',
paginate: true,
channels: []
}
messagesSrvc.reset(params, config)
loadMore()
loads more data based on $skip
= ( page
+ 1 ) * $limit
messagesSrvc.loadMore()
loadAll()
loads all data based on ($skip
= page
* $limit
) * pages
messagesSrvc.loadAll()
loadPage(page)
loads the based on $skip
= page
* $limit
messagesSrvc.loadPage(2)
destroy()
destroys all listners created by .on(eventName, listener)
function
messagesSrvc.destroy()