promise-sequential
v1.1.1 promise queue seq sequence sequential
promise-sequential
Simple like Promise.all(), but sequentially!
Installation
npm install --save promise-sequential
Usage
const sequential = require('promise-sequential');
const items = [
() => new Promise( ... )
() => new Promise( ... )
() => new Promise( ... )
];
sequential(items)
.then(res => {
// ...
})
.catch(err => {
// ...
})
There is only one difference between Promise.all usage and promise-sequential usage: promise-sequential receive an Array of functions that each returns a promise.
Each function brings three params:
Name | Description |
---|---|
previousResponse | The response of previous iteration |
responses | All responses received at the time |
count | The current count. |
More complex usage
const sequential = require('promise-sequential');
const array = [1,2,3,4,5];
sequential(array.map((item) => {
return function(previousResponse, responses, count) {
return new Promise(resolve => {
setTimeout(() => {
resolve(item)
}, 1000)
})
}
}))
.then(res => {
// ...
})
.catch(err => {
// ...
})
npm i promise-sequential
Metadata
- MIT
- Whatever
- Russian Rebouças
- released 9/20/2016