I have a use case of lookup function where I have to use the same expression library but the lookup will happen both on the basis of key and value pair.
Below is the expression library that I have uploaded
Now I will get value1 from previous snaps, I want to use value1 to retrieve data as Key1.
Can you suggest how this can be achieved?
If i understood correctly, you want to get a value from the config file, based on an incoming field in the pipeline. If that’s correct, try this:
Where “config” is the name of the ecpression library, and “$field” is the incoming field (value1 in your original post).
If you want to use the incoming value(from previous snaps) in order to retrieve the object key, then you can use the following expession: