ADR_018 Notification system design decisions

Date: 11/01

Status

accepted

Context

This adr captures component design decisions in Notification system design.

Decision

Functional requirements, provide APIs

create_topic
subscribe
publish

Architecture Characteristic

Salable
Durable

Design decisions

Have database to store topics, subscribers, and temporary messages
Have an in-memory database to store failed message for short term re-try

Consequences