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express mysql docker-compose Error: connect ECONNREFUSED

Last updated at Posted at 2020-06-27

:o: 解決策

const express = require('express')
const app = express()

var mysql      = require('mysql');
var connection = mysql.createConnection({
  host     : 'mysql', // localhostは間違い, 0.0.0.0は間違い
  port     : 3306,
  user     : 'root',
  password : 'password',
  database : 'testdb'
});

対象

docker-composeでnodejs(express), mysqlを立ち上げて接続しようとしてエラーが出た人。

自分の場合、hostを修正した場合に成功しました。
user, password, databaseは各自確認してください。

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