DIDCommMessaging Service Endpoint is in the wrong format

[conanoc]

This issue of credo-ts also exists in ACA-Py.

It's been observed that generating DIDs for did:peer:2 with a service endpoint type of DIDCommMessaging, the serviceEndpoint follows the format of the did-communication endpoint type instead of the DIDCommMessaging endpoint type.

[dbluhm]

ACA-Py is following the did-communication convention right now. This convention is defined here: https://github.com/hyperledger/aries-rfcs/blob/main/features/0067-didcomm-diddoc-conventions/README.md#service-conventions

ACA-Py is correctly adhering to this convention and has not yet adopted the DIDCommMessaging service type.

Credo, by comparison, is using the DIDCommMessaging service type but using the old did-communication conventions i.e. the serviceEndpoint is a string when it should be an object with the accept and routingKeys fields.

I'm not sure I see how this issue applies to ACA-Py at the moment. Could you elaborate?

[conanoc]

I filed this issue to notice that there's a compatibility issue among peer-did libraries as listed here: decentralized-identity/peer-did-method-spec#64
At first, I thought using did-communication type services in peer-did was not conforming to the spec. Now I have learned that the spec does not specify which type to use. And maybe this is the source of the compatibility issue.