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server.js
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server.js
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const express = require('express');
const fs = require('file-system');
const bodyParser = require('body-parser');
const mysql = require('mysql');
const cors = require('cors');
const app = express();
const port = process.env.PORT || 8080;
const env = process.env.NODE_ENV || 'dev';
const dbConfig = require('./db-config')[env];
const pool = mysql.createPool(dbConfig);
pool.config.connectionLimit = 400;
const query = options => {
const {
query,
data,
isArray,
} = options;
return new Promise((resolve, reject) => {
pool.getConnection((err, connection) => {
if (err) {
console.log('DATABASE ERROR: ', err);
connection.release();
reject(err);
}
connection.query(query, data, (err, result) => {
connection.release();
if (err) {
reject(err);
} else {
resolve(isArray === false ? result[0] : result);
}
});
});
});
};
const setCache = res => {
if (env === 'production') {
const cacheExpire = ((1000 * 60) * 60) * 24;
res.setHeader('Cache-Control', `public, max-age=${ cacheExpire }`);
}
}
app.use(bodyParser.urlencoded({ extended: false, limit: 1000000000000 }));
app.use(bodyParser.json({ limit: 1000000000000 }));
app.use(cors());
app.use('/', express.static(`${__dirname}/dist`));
app.set('view engine', 'html');
app.set('views', `${__dirname}/dist`);
app.route('/api/beers').get((req, res) => {
query({ query: `SELECT * FROM mybeers` })
.then(data => {
setCache(res);
res.send(data)
})
.catch(error => console.log(error));
});
app.route('/api/beer/image/:imgId').get((req, res) => {
fs.readFile(`./uploads/user-image-${req.params.imgId}.txt`, 'utf8', (err, content) => {
if (err) {
throw err;
}
const data = String(content);
setCache(res);
res.send(data);
});
});
app.route('/api/beer/:imgId/:id').get((req, res) => {
query({
query: `
SELECT *
FROM mybeers
WHERE id = ${req.params.id}
`,
isArray: false
})
.then(data => {
fs.readFile(`./uploads/user-image-${data.imgId}.txt`, 'utf8', (err, content) => {
if (err) {
throw err;
}
data.imgDataUri = String(content);
setCache(res);
res.send(data);
});
})
.catch(error => console.log(error));
});
app.route('/api/beer/add').post((req, res) => {
const randomId = Math.round(Math.random() * 100000000);
fs.writeFile(`./uploads/user-image-${randomId}.txt`, req.body.upload, err => {
console.log(`./uploads/user-image-${randomId}.txt has been created.`);
});
query({
query: `
INSERT INTO mybeers
SET beerName = ?,
rating = ?,
comments = ?,
imgId = ?,
datePosted = ?
`,
data: [
req.body.beerName,
req.body.rating,
req.body.comments,
randomId,
new Date().toLocaleString("en-US")
]
})
.then(data => {
data.imgId = randomId;
res.send(data)
})
.catch(error => console.log(error));
});
app.route('/api/beer/edit/:imgId/:id').put((req, res) => {
query({
query: `
UPDATE mybeers
SET beerName = ?,
rating = ?,
comments = ?
WHERE id = ${req.params.id}
`,
data: [
req.body.beerName,
req.body.rating,
req.body.comments
]
})
.then(data => {
data.body = req.body;
if (req.body.upload !== '') {
fs.writeFile(`./uploads/user-image-${req.params.imgId}.txt`, req.body.upload, err => {
console.log(`user-image-${req.params.imgId}.txt has been updated.`);
res.setHeader('Cache-Control', `public, max-age=-1`);
res.send(data);
});
} else {
res.send(data);
}
})
.catch(error => console.log(error));
});
app.route('/api/beer/delete/:imgId/:id').delete((req, res) => {
query({ query: `
DELETE FROM mybeers
WHERE id = ${req.params.id}
`})
.then(data => {
fs.unlink(`./uploads/user-image-${req.params.imgId}.txt`, err => {
res.send(data);
});
})
.catch(error => console.log(error));
});
module.exports = app.listen(port, () => {
console.log(`Node server is running in ${env} mode on port ${port}`);
});