DIDComm Mediator/Router - Mailbox feature

[rolsonquadras]

DIDComm mediator should store messages destined to edge agents when they can't connect to the router (mailbox).

part of #807

[rolsonquadras]

This feature can be divided into following components:

• Service Layer
• Store the messages when registered agent is unavailable
• Integrate with framework
• Client Layer
• BDD tests

[m00sey]

Can you elaborate on what is required for "Integrate with framework"

Internally we initialized using

framework, err := aries.New(
		aries.WithTransportReturnRoute("all"),
		aries.WithOutboundTransports(ws.NewOutbound()),
		aries.WithStoreProvider(mem.NewProvider()),
		aries.WithProtocols(messagepickupSvc.ServiceCreator(), basicmessageSvc.ServiceCreator()),
	)
if err != nil {
    nil, err
}

[llorllale]

@m00sey the question on my mind is: how will the messagepickup protocol be integrated with the mediator one? This corresponds with Rolson's Store the messages when registered agent is unavailable point above

[m00sey]

We had our own router implementation but didn't get it submitted before you published mediator, I am going to be working on that integration.

[rolsonquadras]

Can you elaborate on what is required for "Integrate with framework"

Internally we initialized using

framework, err := aries.New(
		aries.WithTransportReturnRoute("all"),
		aries.WithOutboundTransports(ws.NewOutbound()),
		aries.WithStoreProvider(mem.NewProvider()),
		aries.WithProtocols(messagepickupSvc.ServiceCreator(), basicmessageSvc.ServiceCreator()),
	)
if err != nil {
    nil, err
}

It was been added to the default framework in https://github.com/hyperledger/aries-framework-go/pull/2001/files#diff-da8e5280b0328cb616f0b42390a35b00R72.