120 lines
2.7 KiB
JavaScript
120 lines
2.7 KiB
JavaScript
var bodyParser = require('body-parser');
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var express = require('express');
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var fs = require('fs');
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var app = express();
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var jsonParser = bodyParser.json();
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app.use(express.static(__dirname + '/public'));
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app.get('/api/users', function (req, res) {
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var content = fs.readFileSync('users.json', 'utf8');
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var users = JSON.parse(content);
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res.send(users);
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});
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app.get('/api/users/:id', function (req, res) {
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var id = req.params.id;
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var content = fs.readFileSync('users.json', 'utf8');
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var users = JSON.parse(content);
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var user = null;
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for (var i = 0; i < users.length; i++) {
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if (users[i].id == id) {
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user = users[i];
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break;
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}
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}
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if (user) {
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res.send(user);
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}
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else {
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res.status(404).send();
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}
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});
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app.post('/api/users', jsonParser, function (req, res) {
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if (!req.body) return res.sendStatus(400);
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var userName = req.body.name;
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var userAge = req.body.age;
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var user = { name: userName, age: userAge };
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var data = fs.readFileSync('users.json', 'utf8');
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var users = JSON.parse(data);
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var id = Math.max.apply(
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Math,
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users.map(function (o) {
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return o.id;
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})
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);
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user.id = id + 1;
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users.push(user);
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var data = JSON.stringify(users);
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fs.writeFileSync('users.json', data);
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res.send(user);
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});
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app.delete('/api/users/:id', function (req, res) {
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var id = req.params.id;
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var data = fs.readFileSync('users.json', 'utf8');
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var users = JSON.parse(data);
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var index = -1;
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for (var i = 0; i < users.length; i++) {
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if (users[i].id == id) {
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index = i;
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break;
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}
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}
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if (index > -1) {
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var user = users.splice(index, 1)[0];
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var data = JSON.stringify(users);
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fs.writeFileSync('users.json', data);
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res.send(user);
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}
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else {
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res.status(404).send();
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}
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});
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app.put('/api/users', jsonParser, function (req, res) {
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if (!req.body) {
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return res.sendStatus(400);
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}
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var userId = req.body.id;
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var userName = req.body.name;
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var userAge = req.body.age;
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var data = fs.readFileSync('users.json', 'utf8');
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var users = JSON.parse(data);
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var user;
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for (var i = 0; i < users.length; i++) {
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if (users[i].id == userId) {
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user = users[i];
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break;
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}
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}
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if (user) {
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user.age = userAge;
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user.name = userName;
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var data = JSON.stringify(users);
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fs.writeFileSync('users.json', data);
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res.send(user);
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}
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else {
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res.status(404).send(user);
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}
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});
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app.listen(3000, function () {
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console.log('STARTED');
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}); |