Is it possible to have dynamic keys with VRL?

[camilisette]

For example I have this code where I would like the value of the variable field_name to be the key name to be used to tag my logs.

field_name = "something"

.fields[field_name] = "this is a test"

This would result to a log that looks like this

{
    "fields": {
          "something": "this is a test"
     }
    ......
}

Thanks in advance!

[jszwedko]

Hey! Kinda. See https://vector.dev/docs/reference/vrl/functions/#set

[camilisette]

can't believe I didn't notice this. saw that there's one for get too. thanks!