mirror of
https://github.com/logos-messaging/logos-delivery.git
synced 2026-07-26 06:23:14 +00:00
21 lines
887 B
Nim
21 lines
887 B
Nim
import chronos, results
|
|
|
|
import logos_delivery/api/types as api_types
|
|
|
|
export api_types
|
|
|
|
type MessagingSender* = concept c
|
|
## The narrow egress capability the reliable-channel layer depends on: just
|
|
## `send`. A layer above messaging depends on this capability, not on the
|
|
## concrete `MessagingClient`. Dot-call form (`c.send(...)`) so it is
|
|
## satisfied by both a real `send` proc (the production `MessagingClient`)
|
|
## and a `send` proc-typed field (a test double).
|
|
c.send(MessageEnvelope) is Future[Result[RequestId, string]]
|
|
|
|
# Structural API contract for a messaging client (ops in `messaging/api/*`).
|
|
# Refines `MessagingSender`, so the send capability is stated once.
|
|
type MessagingApi* = concept c
|
|
c is MessagingSender
|
|
subscribe(c, contentTopic = ContentTopic) is Future[Result[void, string]]
|
|
unsubscribe(c, contentTopic = ContentTopic) is Result[void, string]
|