From 4253099f07b4e47b8bf29afdfa418ff855804c08 Mon Sep 17 00:00:00 2001
From: Rosanny <rosanny.sihombing@hft-stuttgart.de>
Date: Thu, 16 Sep 2021 13:35:13 +0200
Subject: [PATCH] using connection pools
---
config/dbconn.ts | 49 ++++++++++++------------------------------------
1 file changed, 12 insertions(+), 37 deletions(-)
diff --git a/config/dbconn.ts b/config/dbconn.ts
index c13c40f1..845697e5 100644
--- a/config/dbconn.ts
+++ b/config/dbconn.ts
@@ -4,59 +4,34 @@ var env = process.env.NODE_ENV || 'testing'
const config = require('./config')[env]
// ==== USER ACOOUNT DB CONNECTION ====
-var userConnection = mysql.createConnection({
+const userConnection = mysql.createPool({
host: config.database.host,
user: config.database.user,
password: config.database.password,
port: config.database.port,
database: config.database.dbUser,
- multipleStatements: true
-})
+ waitForConnections: true,
+ connectionLimit: 10,
+ queueLimit: 0
+});
-userConnection.connect(function(err) {
- if (err) throw err
-})
userConnection.query('USE '+config.database.dbUser)
-// ALTERNATIVE approach: close db connection manually after every query
-/*
-var dbconn = function dbconn(query, values, next) {
- var connection = mysql.createConnection({
- host: config.database.host,
- user: config.database.user,
- password: config.database.password,
- port: config.database.port,
- database: config.database.db
- })
- connection.connect(function(err) {
- if (err) throw err;
- })
- connection.query(query, values, function(err) {
- connection.end(); // close the connection
- if (err) {
- throw err;
- }
- // Execute the callback
- next.apply(this, arguments);
- });
-}
-*/
-
// ==== PROJECT DB CONNECTION ====
-var projectConnection = mysql.createConnection({
+const projectConnection = mysql.createPool({
host: config.database.host_project,
user: config.database.user,
password: config.database.password,
port: config.database.port,
- database: config.database.dbProject
-})
+ database: config.database.dbProject,
+ waitForConnections: true,
+ connectionLimit: 10,
+ queueLimit: 0
+});
-projectConnection.connect(function(err) {
- if (err) throw err
-})
projectConnection.query('USE '+config.database.dbProject)
-var connection = {
+const connection = {
user: userConnection,
project: projectConnection
}
--
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