[1] Multistream Toggle - Add runtime target functions and error handling.

[michelinewu]

Add Runtime Target Management for Mid-Stream Multistream Toggle

Stack: master ← 1 ← 2 ← 3 ← 4 ← 5

Summary

Adds runtime target add/remove/update functionality to the Restream service, enabling mid-stream platform toggling.

Restream Service (app/services/restream.ts)

New interfaces:

• IRestreamTargetData — payload shape for creating runtime targets (server URL, stream key, platform, label, mode)
• IRestreamRuntimeTarget — response shape from the runtime API (adds id, state, timestamps)
• TRestreamTarget — union of IRestreamTarget | IRestreamRuntimeTarget
• IRestreamResponse — generic API response wrapper with success and message

New methods:

• addRuntimeTargets(targets) / removeRuntimeTargets(targetIds) — low-level POST/DELETE to /api/v1/rst/targets/runtime
• addTargets(platforms, destinations, mode) — high-level orchestrator that formats platform and custom destination data into runtime target payloads and calls addRuntimeTargets
• removeTargets(platforms, destinations, mode) — finds matching existing targets and calls removeRuntimeTargets with their IDs
• updateTargets(platforms, destinations, mode) — diff-based update: removes targets no longer needed, adds new ones
• updateTargetsAndValidate(platforms, destinations, mode) — wraps updateTargets with error handling and target state validation
• filterTargetsByMode(targets, mode) — filters targets by display orientation (horizontal/vertical)
• isPlatformTarget(target) — type guard distinguishing platform targets from custom destinations
• formatRuntimePlatformData(platform, mode) — builds IRestreamTargetData from platform settings (supports Twitch, YouTube, Facebook, TikTok, Trovo, X, Kick, Instagram, Patreon)
• formatRuntimeCustomDestinationData(destination, mode) — builds IRestreamTargetData from custom destination settings

Updated existing methods:

• createTargets — now accepts optional label field on targets
• IRestreamTarget.platform — type widened from TPlatform to TPlatform | 'relay', added optional label

Stream Error (app/services/streaming/stream-error.ts)

• Added RESTREAM_UPDATE_FAILED error type for failures during mid-stream target updates

Files changed:

• app/services/restream.ts
• app/services/streaming/stream-error.ts

Performance Implications

None. New methods added but none of them are currently called in the application.

[bundlemon]

BundleMon

Files updated (1)

Status	Path	Size	Limits
✅	renderer.(hash).js	10.36MB (+5.58KB +0.05%)	-

Unchanged files (3)

Status	Path	Size	Limits
✅	vendors~renderer.(hash).js	4.67MB	-
✅	updater.js	115.29KB	-
✅	guest-api.js	40.23KB	-

Total files change +5.58KB +0.04%

Final result: ✅

View report in BundleMon website ➡️

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Current branch size history | Target branch size history