Add parameter("...") support in Ecotone expression attributes

[ralfkuehnel]

I’m working with Symfony + Ecotone and ran into a limitation with expression attributes like:

#[Delayed(expression: '%app.timeout% * 60 * 1000')]

Using %...% placeholders requires pre-processing and causes syntax errors during tests.

I wanted to propose an alternative approach: introducing a parameter("...") function in Ecotone expressions, so it could look like this:

#[Delayed(expression: 'parameter("app.timeout") * 60 * 1000')]

Benefits:

• No parsing of %...% required, native Ecotone expressions
• Works seamlessly with Symfony’s ParameterBagInterface
• Cleaner syntax and easier testing

Would you be open to adding this feature? I can prepare a PR if you agree.

Thanks!

[dgafka]

Hey @ralfkuehnel,

I think make sense, feel free to open PR.

Please use ConfigurationVariableService to fetch parameters, as this is the Service that work across different implementations (Symfony, Laravel, Ecotone Lite).