Code files

Chapter06/mysql/quotes-app/index.js

@@ -0,0 +1,51 @@
+const mysql = require('mysql')
+
+const params = {
+  author: process.argv[2], 
+  quote: process.argv[3]
+}
+
+const db = mysql.createConnection({ 
+  user: 'root', 
+  //password: 'pw-if-set',
+  //debug: true 
+})
+
+db.query('CREATE DATABASE quotes')
+db.query('USE quotes')
+
+db.query(`
+  CREATE TABLE quotes.quotes ( 
+    id INT NOT NULL AUTO_INCREMENT,  
+    author VARCHAR ( 128 ) NOT NULL, 
+    quote TEXT NOT NULL, PRIMARY KEY ( id ) 
+  )
+`)
+
+const ignore = new Set([
+  'ER_DB_CREATE_EXISTS',
+  'ER_TABLE_EXISTS_ERROR'
+])
+
+db.on('error',  (err) => {
+  if (ignore.has(err.code)) return 
+  throw err 
+})
+
+if (params.author && params.quote) {
+  db.query(`
+    INSERT INTO quotes.quotes (author, quote)
+    VALUES (?, ?);
+  `, [params.author, params.quote])
+}
+
+if (params.author) {
+  db.query(`
+    SELECT * FROM quotes 
+    WHERE author LIKE ${db.escape(params.author)}
+  `).on('result', ({author, quote}) => {
+    console.log(`${author} ${quote}`)
+  })
+}
+
+db.end()