Select top-level properties from Resolver

[BernhardFuchs]

Did resolvers can return a number of properties in addition to the didDocument. The Universal Resolver hosted by DIF returns e.g.:

• didDocument
• resolverMetadata
• methodMetadata
• content
• contentType

Atm there is no standardized way to selectively include/exclude those top-level properties. Depending on the use case or available resources this could be a useful feature.

It could be implemented by introducing a query parameter e.g.

# include for whitelisting properties
?include=didDocument,resolverMetadata,contentType

# exclude for blacklisting properties
?exclude=didDocument,methodMetadata

The reasoning of making the didDocument also configurable are use cases where the interest are details about e.g. the used resolver or method.