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async-branch
Advanced tools
Wrap async library to describe your flow through branches
npm install async-branch
Import the library
var asyncbranch = require('async-branch')
Create branches and execute
var createUser = new asyncbranch.branch('create user')
.do(insertToDb)
.do(sendEmailToConfirmRegistration)
.do(emitUserCreateEvent)
var loginUser = new asyncbranch.branch('load user')
.do(emitUserLoginEvent)
var loginOrRegistration = new asyncbranch.branch('login or registration')
.do(loadUserFromEmail)
.branch(function(model, next) {
next(null, model ? loginUser : createUser)
})
.execute('example@example.com', function(err, model) {
// if the user is on db loginUser branch is executed
// else the createUser branch is executed
})
Or use to map an array
var data = [
{ key1: 'pippo' },
{ key1: 'pluto' },
{ key1: 'paperina' },
{ key1: 'paperino' },
]
var tooLongFunction = function tooLongFunction(item, next) {
item.type = 'tooLong'
next(null, item)
}
var tooShortFunction = function tooLongFunction(item, next) {
item.type = 'tooShort'
next(null, item)
}
var tooLongBranch = new asyncbranch.branch('tooLongBranch')
.map(tooLongFunction)
var tooShortBranch = new asyncbranch.branch('tooShortBranch')
.map(tooShortFunction)
function branchFunction(item, callback) {
callback(null, (item.key1.length > 6) ? tooLongBranch : tooShortBranch)
}
new asyncbranch.branch('branch name')
.itemBranch(branchFunction)
.execute(data, function(err, data) {
// the first two item of data have type property set to tooShort
// the other items of data have type property set to tooLong
console.log(data)
})
See the test folder for more explainations.
FAQs
Wrap async library to describe your flow through branches
The npm package async-branch receives a total of 1 weekly downloads. As such, async-branch popularity was classified as not popular.
We found that async-branch demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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