Access denied for user 'root'#'external ip' (using password: YES) - mysql

Question

i'm working on a google cloud project and i get this error when i run node index.js / try to access mysql database remotely.
this is the complete error message:
Error: ER_ACCESS_DENIED_ERROR: Access denied for user 'root'#'external_ip' (using password: YES)
at Handshake.Sequence._packetToError (/home/it21695/nodeproject/node_modules/mysql/lib/protocol/sequences/Sequence.js:52:14)
at Handshake.ErrorPacket (/home/it21695/nodeproject/node_modules/mysql/lib/protocol/sequences/Handshake.js:130:18)
at Protocol._parsePacket (/home/it21695/nodeproject/node_modules/mysql/lib/protocol/Protocol.js:279:23)
at Parser.write (/home/it21695/nodeproject/node_modules/mysql/lib/protocol/Parser.js:76:12)
at Protocol.write (/home/it21695/nodeproject/node_modules/mysql/lib/protocol/Protocol.js:39:16)
at Socket.<anonymous> (/home/it21695/nodeproject/node_modules/mysql/lib/Connection.js:103:28)
at Socket.emit (events.js:182:13)
at addChunk (_stream_readable.js:277:12)
at readableAddChunk (_stream_readable.js:262:11)
at Socket.Readable.push (_stream_readable.js:217:10)
--------------------
at Protocol._enqueue (/home/it21695/nodeproject/node_modules/mysql/lib/protocol/Protocol.js:145:48)
at Protocol.handshake (/home/it21695/nodeproject/node_modules/mysql/lib/protocol/Protocol.js:52:23)
at Connection.connect (/home/it21695/nodeproject/node_modules/mysql/lib/Connection.js:130:18)
at Object.<anonymous> (/home/it21695/nodeproject/index.js:10:12)
at Module._compile (internal/modules/cjs/loader.js:678:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:689:10)
at Module.load (internal/modules/cjs/loader.js:589:32)
at tryModuleLoad (internal/modules/cjs/loader.js:528:12)
at Function.Module._load (internal/modules/cjs/loader.js:520:3)
at Function.Module.runMain (internal/modules/cjs/loader.js:719:10)
this is my index.js code (the test DB and books table both exist):
var mysql = require('mysql');
var connection = mysql.createConnection({
host : 'external_ip',
user : 'root',
password : 'password',
database : 'test',
});
connection.connect();
connection.query('SELECT * from books', function (error, results, fields) {
if (error) throw error;
console.log(results);
});
connection.end();
i have added the mysql port (3306) to the firewall exceptions and i've granted privileges for root user. i turned the mysql and node.js external ips to static. i use the passwords that google cloud has assigned.
+------------------+----------------+------------+
| user | host | grant_priv |
+------------------+----------------+------------+
| root | % | Y |
| root | external_ip | Y |
| mysql.infoschema | localhost | N |
| mysql.session | localhost | N |
| mysql.sys | localhost | N |
| root | localhost | Y |
| stats | localhost | N |
+------------------+----------------+------------+
mysql v8.0.11node.js v10.1.0npm v5.6.0

Answer 1

Before checking the application any further make sure to check the user credentials and access privileges on the database host server.

Answer 2

This problem is related to permissions not with nodejs.
First of all i recommend you to install MySQL Workbech and perform your test from that tool.
Also you need to make some configurations into your MySQL database to allow those remote root connections, take a look at this post:
How to allow remote connection to mysql