ALE_CONNECTION

[devyaz]

Can someone please show how to set this up and in which file? I installed MySQL js then in connection.js exports.ALE_CONNECTION=mysql.createConnection({ ....... });
But i still get AleError: ALE_CONNECTION envar is not set, cannot connect to database please advise

[olajide1234]

Could you try installing dotenv (npm install dotenv or yarn add dotenv) and use it to make the env available as in line 15 and 16 of the attached. Let me know if it works.

[devyaz]

i did this and i think am getting connected to the DB

const Sequelize = require('sequelize');
const  mysql    = require('mysql');
exports.ALE_CONNECTION=process.env.ALE_CONNECTION= mysql.createConnection({
  host     : 'localhost',
  user     : 'root',
  password : '',
  database : 'booklet'
});
const conn = process.env.ALE_CONNECTION;

but i get this

 nf start
[WARN] ENOENT: no such file or directory, open 'Procfile'
[OKAY] package.json file found - trying 'npm start'
9:20:13 PM web.1 |  > a.l.e@1.0.0 start /home/martin/Downloads/Compressed/ale-master/ale-master
9:20:14 PM web.1 |  > node server
9:20:18 PM web.1 |  connection  ==   "[object Object]"  /*this is the conn object i log to the console in connecion.js*/
9:20:18 PM web.1 |  /home/martin/Downloads/Compressed/ale-master/ale-master/node_modules/swagger-routes/src/routeBuilder.js:42
9:20:18 PM web.1 |      else throw e
9:20:18 PM web.1 |           ^
9:20:18 PM web.1 |  TypeError: Cannot read property 'replace' of null
9:20:18 PM web.1 |      at new Sequelize (/home/martin/Downloads/Compressed/ale-master/ale-master/node_modules/sequelize/lib/sequelize.js:117:43)
9:20:18 PM web.1 |      at Object.<anonymous> (/home/martin/Downloads/Compressed/ale-master/ale-master/models/connection.js:32:19)
9:20:18 PM web.1 |      at Module._compile (internal/modules/cjs/loader.js:689:30)
9:20:18 PM web.1 |      at Object.Module._extensions..js (internal/modules/cjs/loader.js:700:10)
9:20:18 PM web.1 |      at Module.load (internal/modules/cjs/loader.js:599:32)
9:20:18 PM web.1 |      at tryModuleLoad (internal/modules/cjs/loader.js:538:12)
9:20:18 PM web.1 |      at Function.Module._load (internal/modules/cjs/loader.js:530:3)
9:20:18 PM web.1 |      at Module.require (internal/modules/cjs/loader.js:637:17)
9:20:18 PM web.1 |      at require (internal/modules/cjs/helpers.js:22:18)
9:20:18 PM web.1 |      at Object.<anonymous> (/home/martin/Downloads/Compressed/ale-master/ale-master/models/book.js:17:19)
9:20:18 PM web.1 |      at Module._compile (internal/modules/cjs/loader.js:689:30)
9:20:18 PM web.1 |      at Object.Module._extensions..js (internal/modules/cjs/loader.js:700:10)
9:20:18 PM web.1 |      at Module.load (internal/modules/cjs/loader.js:599:32)
9:20:18 PM web.1 |      at tryModuleLoad (internal/modules/cjs/loader.js:538:12)
9:20:18 PM web.1 |      at Function.Module._load (internal/modules/cjs/loader.js:530:3)
9:20:18 PM web.1 |      at Module.require (internal/modules/cjs/loader.js:637:17)
9:20:18 PM web.1 |      at require (internal/modules/cjs/helpers.js:22:18)
9:20:18 PM web.1 |      at Object.<anonymous> (/home/martin/Downloads/Compressed/ale-master/ale-master/lib/handlers/getBooks.js:7:14)
9:20:18 PM web.1 |      at Module._compile (internal/modules/cjs/loader.js:689:30)
9:20:18 PM web.1 |      at Object.Module._extensions..js (internal/modules/cjs/loader.js:700:10)
9:20:18 PM web.1 |      at Module.load (internal/modules/cjs/loader.js:599:32)
9:20:18 PM web.1 |      at tryModuleLoad (internal/modules/cjs/loader.js:538:12)
9:20:18 PM web.1 |  npm
9:20:18 PM web.1 |   ERR! code ELIFECYCLE
9:20:18 PM web.1 |  npm
9:20:18 PM web.1 |   ERR! errno 1
9:20:18 PM web.1 |  npm 
9:20:18 PM web.1 |  ERR! a.l.e@1.0.0 start: `node server`
9:20:18 PM web.1 |  npm ERR! Exit status 1
9:20:18 PM web.1 |  npm ERR! 
9:20:18 PM web.1 |  npm ERR! Failed at the a.l.e@1.0.0 start script.
9:20:18 PM web.1 |  npm ERR!
9:20:18 PM web.1 |   This is probably not a problem with npm. There is likely additional logging output above.
[DONE] Killing all processes with signal  SIGINT
9:20:18 PM web.1 Exited with exit code null

but i think sequelize gets a null object from DB ! i really want to use this with mysql.js but its so painstakingly tough

[devyaz]

is there a running example(demo) to learn from? using one of the other Db's

[olajide1234]

I currently use it with PostgreSQL/Sequelize. You can check my working repo here: https://github.com/olajide1234/ale. Let me know if you can pick up a thing or two from there. If not, you can share your codebase, i'll try to replicate the error and take a look at it.

Make sure you have the user and database setup. Check these files 'ale/test/testDB.js' and 'ale/models/' for instructions.