Hi friends when I have a parameters yml ```data science acti

Question

Hi friends when I have a parameters yml ```data science active modelling pipeline model options test size 0 2 ``` and I load it via ```conf loader = kedro config ConfigLoader parameters = conf loader parameters ``` that returns me ``` data science active modelling pipeline model options test size 0 2 ``` When in another place I ```data catalog = DataCatalog from config catalog credentials data catalog add feed dict parameters ``` this won t work because eventually that ll land me ```ValueError Pipeline input s params data science candidate modelling pipeline model options random state not found in the DataCatalog``` What s the intermediate step that I m missing

Jonas Kemper · Answer

I figured it will probably have something to do with <https github com kedro org kedro blob a6919efb2bec81e864fe7fa02849394bcc7ecd17 tests pipeline test modular pipeline py L122> but didn t get much further than that

Merel · Answer

< Jonas Kemper> what are you trying to do

Jonas Kemper · Answer

Working on an implementation of KedroService where we re loading catalog and parameters via an s3 URL that get s passed in through a FastAPI endpoint We want to use configloader to load those config files and then pass them into a pipeline runner

Merel · Answer

And what is this step for Why are you adding parameters into the catalog ```data catalog = DataCatalog from config catalog credentials data catalog add feed dict parameters ```

Jonas Kemper · Answer

I probably shouldn t see no evil Eventually I ll need them to end up in my `runner run pipeline data catalog ` somehow don t I

Jonas Kemper · Answer

pipeline comes from `pipeline = register pipelines pipeline name `

Merel · Answer

hmmm I don t know on top of my head how to do this But I ll have a think

Jonas Kemper · Answer

Thank you slightly smiling face

Nok Lam Chan · Answer

Are you using all these component without a Kedro project And the problem here is the parameters isn t loaded into catalog

Jonas Kemper · Answer

Yes

Nok Lam Chan · Answer

Hm let me try

Nok Lam Chan · Answer

The problem is the `params ` syntax is something handled by `KedroContext` search for KedroContext get feed dict When you use `add feed dict` it really just store the dictionary as A MemoryDataSet

Jonas Kemper · Answer

Can you think of any straight forward workaround

Nok Lam Chan · Answer

You are using a Kedro Project so I assume KedroSession context isn t available

Jonas Kemper · Answer

No not currently

Jonas Kemper · Answer

Probably not a good idea to try and hijack `from kedro framework context context import get feed dict`

Nok Lam Chan · Answer

It would be easier if it s possible to just create `KedroContext` and let it create the `catalog` etc

Nok Lam Chan · Answer

Otherwise you may either fake a `KedroContext` to just use the `context get feed dict` method or just copy that piece of code

Nok Lam Chan · Answer

But I think having KedroContext will be ideal

Jonas Kemper · Answer

Hmhm I understand let me evaluate that option and then report back to you here

Nok Lam Chan · Answer

<https github com kedro org kedro issues 2169 issuecomment 1447001865> This may be relevant some of our community take a different approach by creating a WebServerRunner It describes the high level approach but there isn t code for reference