issues around required projections schema field "configuration"

[dylanmcreynolds]

The schema for projections requires a field called "configuration" be added at the top level of the projection:

event-model/event_model/schemas/run_start.json

Line 75 in 9d3651e

"required" : ["projection", "version", "configuration"]

.

This was intended to be a field to be used to help describe and potentially select a projection, but the fact that it required is a bit annoying and confusing to be implementing projections.

Either it should be better described in documentation or made not required.

[danielballan]

I would support making that optional.

I guess the tension is between "Make the minimal example simple" and "Avoid hiding features people might soon need when they get beyond the minimal example." But I lean toward making it optional in this case.