<@UJV6CBCKW> FromResource() will load from the cla...

# http4k

[dave]

@Razi Kheir FromResource() will load from the classpath and not from a file on disk

[Razi Kheir]

I see, so resource comes first but file system is just before last?
Why is it not detecting my filesystem override unless its the first in line?

[dave]

There shouldn't be a special order apart from the chain that you specify.

[Razi Kheir]

I mean if I put the filesystem environment as the first override everything works prefectly the lenses read the variables etc.
If I put it under jvm flags, suddenly it throws lens exception

[Razi Kheir]

I would assume that if it doesn’t find any jvm flags for example it would then search in the second one instead of throwing exception no?

[dave]

Yes - that the expected behaviour.

[dave]

Can you post a simple.code version that we can run?

[Razi Kheir]

Ill do that later today 🙂 thanks

[Razi Kheir]

I solved it by making all the lenses use EnvironmentKey.xxx().optional instead of .required.
I will post an example anyway later today

[dave]

Here's my experiment, which works ok:

fun main() {
    /**
     * Given: foo.propertie
     * 
     * foo=bar
     */
    val key = EnvironmentKey.required("foo")

    val file = Environment.from(File("path/foo.properties"))

    val comp = Environment.from("BAR" to "foo") overrides file

    println(key(comp))
}