Introduce Real-Time Communication

Overview

User capability

Establish Socket.IO with shared typed contracts

User

The AeroSim delivery team

What the user can do

Establish Socket.IO with shared typed contracts

Why the user benefits

The capability becomes an explicit, testable project boundary.

User need

The delivery team needs the AeroSim solution to establish Socket.IO with shared typed contracts.

In scope

Establish Socket.IO with shared typed contracts

• StatusProposed
• OwnerAeroSim Scope (proposed; not accepted)
• Parent EpicAEROSIM-EP-1
• Depends onAEROSIM-FT-41, AEROSIM-FT-42

Tasks

AEROSIM-TS-21Planning status: Done

Define the shared typed Socket.IO contract

Nebula and Singularity compile against one versioned event map with explicit payload, acknowledgement, ordering, and error contracts.

• ComponentWeb Application / Socket.IO client and API Service / Socket.IO gateway — Shared typed application-event contract
• Depends onAEROSIM-TS-13, AEROSIM-TS-16
• RequirementsFR-0051, NFR-0007

AEROSIM-TS-22Planning status: Done

Implement the authenticated Socket.IO gateway

Singularity accepts authorized typed Socket.IO connections, rejects invalid identities and events, and preserves declared event ordering.

• ComponentAPI Service — Socket.IO gateway
• Depends onAEROSIM-TS-21
• RequirementsFR-0051, NFR-0007

AEROSIM-TS-23Planning status: Done

Implement the typed Nebula Socket.IO client

Nebula connects through the shared contract, reconnects with bounded behavior, and surfaces terminal connection failures without duplicating events.

• ComponentWeb Application — Socket.IO client
• Depends onAEROSIM-TS-22
• RequirementsFR-0051, NFR-0007

AEROSIM-TS-24Planning status: Done

Verify real-time connection and failure behavior

Integration tests cover connection, authorization rejection, reconnect, ordered delivery, invalid events, and disconnect cleanup across Nebula and Singularity.

• ComponentWeb Application and API Service — Socket.IO integration tests
• Depends onAEROSIM-TS-23
• RequirementsFR-0051, NFR-0007

Acceptance outcomes

1. 01

   Nebula and Singularity consume one shared typed Socket.IO event contract.

2. 02

   Tests cover connection, authorization, reconnect, ordering, and invalid-event behavior.

Functional requirements and measurable criteria

FR-0051

Introduce Real-Time Communication

The system shall establish Socket.IO with shared typed contracts.

Acceptance 01

GivenAEROSIM-FT-44 is exercised within its governed scope under supported conditions

Whenthe primary capability path is completed

ThenNebula and Singularity consume one shared typed Socket.IO event contract

EvidenceFuture reviewed automated and browser evidence must verify this exact outcome against the current requirement.

Acceptance 02

GivenAEROSIM-FT-44 is exercised within its governed scope under supported conditions

Whenthe continuation or repeat path is completed

ThenTests cover connection, authorization, reconnect, ordering, and invalid-event behavior

EvidenceFuture reviewed automated and browser evidence must verify this exact outcome against the current requirement.

Non-functional requirements

• NFR-0007 — Engineering reproducibility and supply-chain integrity

  Repeated validation from the same immutable inputs produces equivalent artifacts and rejects unlicensed, untraceable, invalid, or over-budget inputs.

Risks

• Risk

  Partial introduction could leave an ungoverned or duplicated technical boundary.

Original source and prototype evidence

• discord: Engineering Features grounded in the selected AeroSim technology stack.
• discord: Engineering Feature decomposition continuation.
• discord: RootAtSkic directed publication of the agreed Scope update.

Prototype and discovery boundary

Existing implementation is discovery evidence only; it establishes no current approval, acceptance, or release state.