TaskSyncer
Provide a ticket like API for syncing asynchronous tasks
Installation
npm install --save task-syncer
OR
yarn add task-syncer
Usage
const fs = require('fs');
const TaskSyncer = require('task-syncer');
async function main () {
const syncer = new TaskSyncer();
const files = ['./foo', './bar'];
await Promise.all(files.map(async file => {
const ticket = syncer.getTicket();
const content = await fs.promises.readFile(file, 'utf8');
await ticket.ready;
console.log(file);
console.log(content);
});
}
main.then(
() => console.log('end with success'),
error => console.log('end with error', error)
);Without TaskSyncer, the reading of the files and the console.log calls are all asynchronous, the strings written on the output can overlap each other, the output can be :
./bar
./foo
"./foo" content text
"./bar" content text
With TaskSyncer, the reading of the files is still asynchronous and parallel, but the output is synchronous :
./foo
"./foo" content text
./bar
"./bar" content text