json read file code example

Example 1: json dump to file

import json

data = {"key": "value"}

with open('data.json', 'w') as jsonfile:
    json.dump(data, jsonfile)

Example 2: open json file python

import json

with open('data.txt') as json_file:
    data = json.load(json_file)

Example 3: json load from file python 3

import json

with open('file_to_load.json', 'r') as file:
  data = json.load(file)

Example 4: write json pythonb

import json

with open('data.txt') as json_file:
    data = json.load(json_file)
    for p in data['people']:
        print('Name: ' + p['name'])
        print('Website: ' + p['website'])
        print('From: ' + p['from'])
        print('')

Example 5: write json pythonb

>>> jstr = json.dumps(data, ensure_ascii=False, indent=4)
>>> print(jstr)
{
    "item": "Beer",
    "cost": "£4.00"
}

Example 6: read json data from file

// consider your file data is something like json string but aving parse issue 
//that means some additional char is there 
fs.readFile(ROLES_FILE, "utf8", (err, data) => {
      if (err) {
        res.status(403).json({});
      }
      const [localScope, action] = scope.split(".");
      const mapper = JSON.parse(data.toString("utf8").replace(/^\uFEFF/, ""));
      const isAllowed = checkRole(mapper, localScope, action, role);
      if (isAllowed) {
        next();
      } else {
        res.status(403).json({});
      }