README.md

Remove $decimal from express json response

Simple but effective way to remove recursively all the annoying $decimal key when using res.json.

It's a simple regex that cleans the response object as a json before sending.

index.js

const express = require('express');
const app = express();

app.use((req, res, next) => {
  const { json } = res;
  const fn: any = function (this: any, obj: any) {
    const REGEXP = /{\s*"\$numberDecimal":\s*"(.+?)"\s*}/g;
    /* eslint-disable-next-line */
    obj = JSON.parse(JSON.stringify(obj).replace(REGEXP, '$1'));
    json.call(this, obj);
  };

  res.json = fn;
  next();
});