Always Error connection tcp or deploy app flex or standard (App engine). never Working mysql

[akedevs]

Error: connect ECONNREFUSED https://3306-dot-8437288-dot-devshell.appspot.com
at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1117:14)
--------------------
at Protocol._enqueue (/home/akedev_js/demoilovenode/nodejs-docs-samples/appengine/cloudsql/node_modules/mysql/lib/protocol/Protocol.js:144:48)
at Protocol.handshake (/home/akedev_js/demoilovenode/nodejs-docs-samples/appengine/cloudsql/node_modules/mysql/lib/protocol/Protocol.js:51:23)
at Connection.connect (/home/akedev_js/demoilovenode/nodejs-docs-samples/appengine/cloudsql/node_modules/mysql/lib/Connection.js:119:18)
at Bluebird (/home/akedev_js/demoilovenode/nodejs-docs-samples/appengine/cloudsql/node_modules/knex/lib/dialects/mysql/index.js:68:18)
at Promise._execute (/home/akedev_js/demoilovenode/nodejs-docs-samples/appengine/cloudsql/node_modules/bluebird/js/release/debuggability.js:313:9)
at Promise._resolveFromExecutor (/home/akedev_js/demoilovenode/nodejs-docs-samples/appengine/cloudsql/node_modules/bluebird/js/release/promise.js:488:18)
at new Promise (/home/akedev_js/demoilovenode/nodejs-docs-samples/appengine/cloudsql/node_modules/bluebird/js/release/promise.js:79:10)
at Client_MySQL.acquireRawConnection (/home/akedev_js/demoilovenode/nodejs-docs-samples/appengine/cloudsql/node_modules/knex/lib/dialects/mysql/index.js:63:12)
at create (/home/akedev_js/demoilovenode/nodejs-docs-samples/appengine/cloudsql/node_modules/knex/lib/client.js:258:21)
at utils_1.tryPromise (/home/akedev_js/demoilovenode/nodejs-docs-samples/appengine/cloudsql/node_modules/tarn/lib/Pool.js:389:34)
at Object.tryPromise (/home/akedev_js/demoilovenode/nodejs-docs-samples/appengine/cloudsql/node_modules/tarn/lib/utils.js:53:24)
at Promise (/home/akedev_js/demoilovenode/nodejs-docs-samples/appengine/cloudsql/node_modules/tarn/lib/Pool.js:389:17)
at new Promise ()
at callbackOrPromise (/home/akedev_js/demoilovenode/nodejs-docs-samples/appengine/cloudsql/node_modules/tarn/lib/Pool.js:380:12)
at Pool._create (/home/akedev_js/demoilovenode/nodejs-docs-samples/appengine/cloudsql/node_modules/tarn/lib/Pool.js:290:9)
at Pool._doCreate (/home/akedev_js/demoilovenode/nodejs-docs-samples/appengine/cloudsql/node_modules/tarn/lib/Pool.js:260:36)

[fhinkel]

@michaelawyu Could you have a look at this problem with AppEngine please Thanks!

[michaelawyu]

Hi akedevs,

This error message implies that your Cloud SQL instance is rejecting your connection; if possible, please double check that you are using correct credentials and path in your app. If your Cloud SQL instance is in a different project, the IAM settings need to be updated as well before you can start a connection.

[fhinkel]

Closing this, please let us know if it didn't solve your issue.