使用React Native将数据添加到现有JSON文件

Question

I'm trying to add some new data to an existing JSON file from text input. I use React Native and I store some data in JSON file called PartyInfo.json, when I fill out a form I want the data will be passed and stored in the PartyInfo.json file.

const PartyInfo = require('../PartyInfo.json');

let party = {
        name: this.state.name,
        info: this.state.info,
        date: this.state.date,
        price: this.state.price,
    };
    let data = JSON.stringify(party);
    PartyInfo.writeFile('PartyInfo.json', data);

I have tried to follow some answers to similar questions but nothing worked... thanks in advance.

Answer 1

You just need to install npm i react-native-fs using npm i react-native-fs and use below code to update your file

 var RNFS = require('react-native-fs');

    var filePath = RNFS.DocumentDirectoryPath + '/YOUR_FILE_NAME';

    RNFS.writeFile(filePath, YOUR_TEXT, 'utf8')
      .then((success) => {
        console.log('SUCCESS');
      })
      .catch((err) => {
        console.log(err.message);
      });