About

Update a json file, using proper-lockfile. Will create a new file if doens't exists.

let modJson = require('ymodjson')
modJson("./data.json", (data) => {
data.f1 = 11; // or f2, f3 etc.
   return data;
});

async function ymodjson(filePath, updater, op={mkdir:false, retries:{retry:100,factor:1,minTimeout:100}, retry, factor, minTimeout}) {}
- return: nothing
- updater: callback function where r in (r)=>{} is the original json object
- op
   - mkdir: default: false, if true: create the file dir if doesn't exist
   - retries: default: {retry:500, factor:1, minTimeout:100}
      - retry: default: 500
      - factor: default : 1 //time=retry*factor*100ms; default: 500*1*100=50000ms(50s)
      - minTimeout: 100
   - stale: default: 60000 //1m

let modJson = require('ymodjson')
modJson("./data.json", (data) => {
data.f1 = 11; // or f2, f3 etc.
   return data;
},{retry:10});