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kotlinlang

Hey All, Anyone used `aws paramstore` storing the config value and resolving at runtime at the application start?

I’ve used it in a spring project before and it worked well. 

yes, looks like this for me:

```return MapApplicationConfig(
  ...
  Pair("db.password", ssmService.getSsmParameter("${stage}.db.password", true)),
  ...
)```
and the `ssmService` utilize the AWS `SsmClient`
Straight forward.

<@URQ8JG0JG> thanks.. It's really simple one..

Actually I'm planning to migrate from DW to ktor.. in the current setup we have `application.yml`  which has value like
`db:
   name: test
   username: {{user_name}}`
In these user name  should be replaced by the `ssmService`  at runtime. How do i go about this one?

When you use `application.conf` you still need to create your db-connection somehow at the start of the app .. so you can decide:
• are the keys for `db.*` in your config just ssm-keys? and you resolve them when you initialize your db
• or do you prefix your ssm keys with `ssm:` (or stuff like this) in your config, to just resolve specific values from ssm (when `config._startsWith_(*"ssm:"*)`)
For me I found it personally easier to use `embeddedServer` and use `MapApplicationConfig`.

Ah! It give me some idea to look into . Thanks