Provider-push : How to specify a parameter ?

[fbattello]

Hello everybody,

I'm a beginner with the EDC trying to achieve a scenario based on the provider-push sample.
I'd like the API exposed by the provider ecosystem to return different data depending on a parameter sent by the consumer.

I've reproduced the provider-push sample, replacing the placeholder API with my own API.
Now I would like to extend the scenario to take into account an additional parameter.
But I have no clue. Any help would be greatly accepted.

Pretty logically it's unfortunately too late - once in the ReceiverHandler dealing with an HTTPExchange object - to retrieve any property.

I guess a solution would imply to inherit from some base class and implement custom behavior.
I had a look at this discussion that seems to be related, but don't have enough inner understanding to find a way to achieve the whole thing.

Let's say we want to retrieve user#1 from https://jsonplaceholder.typicode.com/users by specifying a userId property in the curl command - Step #8.
How should we modify the code in order to retrieve the extra-parameter on the provider-side and build a different response ?

Thanks for your help.

[ndr-brt]

You can implement a HttpParamsDecorator and register it to the HttpRequestParamsProvider.

[fbattello]

Thanks !
Following your advice please let me know if I'm on the right path.
According to the data-plane-http extension documentation I can create a custom extension that will register my custom HttpParamsDecorator.
In order for the connector to load my extension, do I have to write my custom runtime ?
Something like the code found in this Sample ?

[ndr-brt]

you don't need a custom runtime, you just need to write an extension.
you could take a look at this sample, the transfer-file-local is a module that provides an extension.

[fbattello]

Ok. Think I've got it thanks to this last sample.