Unable to use async config

Issue type:

[x] question [ ] bug report [x] feature request [ ] documentation issue

Database system/driver:

[ ] cordova [ ] mongodb [ ] mssql [ ] mysql / mariadb [ ] oracle [x] postgres [ ] sqlite [ ] sqljs [ ] react-native [ ] expo

TypeORM version:

[x] latest [x] @next [ ] 0.x.x (or put your version here)

Steps to reproduce or a small repository showing the problem:

It seems that currently it is impossible to have ormconfig.js (required by cli tools to operate) to return credentials asynchronously. In case when actual credentials are not in env, but rather need to be fetched from network (e.g. from Vault, AWS SSM, etc.), it is currently impossible to have await/async in ormconfig.js and return value for cli tools to operate.

It seems that even simple await require( 'ormconfig' ) kind of code would solve the problem (and fall back to current behaior in case of sync config.

[valimero]

What’s new there ?

Same problem with MYSQL !

[leonardfactory]

I’m using ts-node, but it should be doable with plain js. I’ll take a guess:

async function getConnectionOptions() {
  const config = await configLoader.load(); // Do whatever you need in order to load asynchronously the configuration
  return config;
}

module.exports = getConnectionOptions(); // So we are returning a Promise here

You can also do this with plain promises:

function loadConfig() {
  return configLoader.load().then(config => {
    return {
       ...
    }
  });
}
module.exports = loadConfig();