Using local JSON file without database in Node.js

 //

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// JSON WITHOUT DATABASE

// //////////////////////////////////////////////////////

const fs = require('fs');

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const cards = JSON.parse(fs.readFileSync(`${__dirname}/data/card-data.json`));

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exports.checkId = (req, res, next, val) => {

if (req.params.id * 1 > cards.length) {

return res.status(404).json({

status: 'fail',

message: 'Invalid ID',

});

}

next();

};

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exports.getAllCards = (req, res) => {

res.status(200).json({

status: 'success',

time: req.requestTime,

result: cards.length, // if sending array!!!

data: { images: cards },

});

};

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exports.getCard = (req, res) => {

const id = req.params.id * 1; // convert String into Number

const card = cards.find((el) => el.id === id); // console.log(req.params);

res.status(200).json({

status: 'success',

time: req.requestTime,

data: {

card: card, // or just card instead of card: card

},

});

};

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exports.postCard = (req, res) => {

// solution to work without database

const newId = cards[cards.length - 1].id + 1;

const newCard = Object.assign({ id: newId }, req.body); // console.log(req.body);

cards.push(newCard);

fs.writeFile(

`${__dirname}/../data/card-data.json`,

JSON.stringify(cards),

(err) => {

res.status(201).json({

status: 'success',

data: { images: newCard },

});

}

); // use asynchronous writeFile

};

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//