
我叫Vitaliy Rizo,我是Amplifer的高级前端开发人员。我将分享我们如何在Web应用程序中使用Logux:我们组织实时数据交换,不重新加载页面的错误通知,浏览器标签之间的通信以及与Redux的集成。
Amplifer是用于在社交网络上发布的服务。有必要在不重新加载页面的情况下快速可靠地通知用户错误:如果突然无法处理图像,则VKontakte API掉了,或者Facebook决定不再发布。展望未来,我会说我们还计划使用Logux讨论出版物,并重写RSS中的交叉发布弹出窗口。但是首先,为什么我们对可用的解决方案不满意。
可能的解决方案:WebSocket,Firebase和Swarm.js
通常,WebSocket用于实现自动更新信息。使用它,您不需要像传统的HTTP请求那样每秒发送一次信息请求,并且报头大小很小。但是,WebSocket有以下缺点:
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imports-api.js
update (project, id, data) {
return put(project, `settings/imports/${ id }`, convert(data))
}
imports.js
onUpdate (projectId, importId, changed) {
return dispatch({
projectId,
importId,
import: changed,
type: 'amplifr/imports/update'
})
}
:
imports.js
let dispatch = useDispatch()
let onUpdate = (projectId, importId, changed) => dispatch.sync({
projectId,
importId,
import: changed,
type: 'amplifr/imports/update'
}, { channels: ['imports/' + projectId] })
sync
dispatch
, , , . , Logux .
Logux

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Logux Redux. Redux createStore
. Logux, «» createLoguxCreator
:
import { createLoguxCreator } from '@logux/redux'
let createStore = createLoguxCreator({
credentials: loguxToken,
subprotocol: '0.6.5',
userId,
server: 'wss://logux.amplifr.com'
})
let store = createStore(reducers)
store.client.start()
createLoguxCreator
:
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Logux- , . , - posts/1
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. subscribe
— :
import useSubscription from '@logux/redux/use-subscription'
let Notices = props => {
let isSubscribing = useSubscription([`projects/${ props.id }`])
if (isSubscribing) {
return <Loader />
} else {
}
}
— , HTTP- Redux- Logux, Logux- :
def schedule_logux
LoguxNotificationWorker.perform_async(
{ type: 'amplifr/notices/add', notice: Logux::NoticePresenter.new(notice).to_json },
channels: ["projects/#{project.id}"]
)
end
, . - , , . , :
import { useDispatch } from 'react-redux'
let dispatch = useDispatch()
let onNoticeHide = noticeId => dispatch.sync({
type: 'amplifr/notices/hide',
noticeId
}, {
channels: [`projects/${ projectId }`]
})
, , Logux:

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let PostEditor = { isApprovable, postId, … } => {
let isSubscribing = useSubscription(isApprovable ? [`posts/${ postId }`] : [])
if (isSubscribing) {
return <Loader />
} else {
}
}
notes
:
import { useDispatch, useSelector } from 'react-redux'
let dispatch = useDispatch()
let notes = useSelector(notes.filter(note => note.postId === postId))
let onNoteAdd = note => dispatch.sync({
type: 'amplifr/notes/add',
note
}, {
channels: [`posts/${ postId }`]
})
. , :
export default function notes (state = [], action) {
if (action.type === 'amplifr/notes/add') {
return state.concat([action.note])
} else if (action.type === 'amplifr/posts/close') {
return state.filter(i => i.postId !== action.postId)
} else {
return state
}
}
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. , isSubscribing: true
. , , . .
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AJAX Logux RSS. RSS- . RSS-, .

. :
import { useDispatch } from 'react-redux'
let dispatch = useDispatch()
let onCreate = (projectId, importId, import) => {
return dispatch.sync({
importId,
import,
type: 'amplifr/imports/add'
}, { channels: ['imports/' + projectId] })
}
let onUpdate = (projectId, importId, changed) => {
return dispatch.sync({
importId,
changed,
type: 'amplifr/imports/update'
}, { channels: ['imports/' + projectId] })
}
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import status from '@logux/client/status'
let connected = false
status(store.client, state => {
if (state === 'synchronized') connected = true
}
setTimeout(() => {
if (!connected) {
sentry.track(new Error('No Logux connection for 10 minutes'))
}
}, 60 * 1000)
100 , . , - , :

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Logux ,
Logux , . , , . RSS-, , . - , , , , .
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import log from '@logux/client/log'
let store = createStore(reducers)
log(store.client)
window.store = store
:
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- , ;
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- ;
- !
:
window.store.client.log.store.created.filter(i => i[0].type === 'amplifr/popups/set')
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undefined
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client.tabId
@logux/redux
id
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:
- Logux, Redux, CRDT ;
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- Logux的缺点是:系统不简单,仍然存在错误,并且解决方案并非总是能很快找到;
- 在Amplifer中,Logux的优势超过了缺点。我们计划在实施合适的项目时继续使用它。

⌘⌘⌘
希望Logux在您的项目中有所用。如有任何疑问,请在Twitter上或通过邮件给我写信。
感谢Alexander Marfitsin和Andrei Sitnik在撰写本文时提供的帮助。