feat(audience): remove sandbox env routing, add testMode (SDK-357)

[bkbooth]

Summary

• Removes getBaseUrl() and the pk_imapik-test- key prefix check that routed events to api.sandbox.immutable.com (being decommissioned). Default base URL is now always https://api.immutable.com; dev routing continues via the existing baseUrl override.
• Adds testMode?: boolean to PixelInitOptions and AudienceConfig. When true, all outbound events carry a top-level test: true field so the backend can filter test traffic from production analytics.
• Updates both READMEs with a Test Mode section and removes sandbox references.

Closes SDK-357. Sub-issue of SDK-351 (Sandbox Removal).

Changed files

File	Change
core/src/config.ts	Removed TEST_KEY_PREFIX, getBaseUrl(). Added BASE_URL constant.
core/src/config.test.ts	Deleted (tested removed function).
core/src/types.ts	Added test?: true to BaseMessage.
core/src/queue.ts	Uses BASE_URL instead of getBaseUrl(publishableKey).
core/src/consent.ts	Uses BASE_URL instead of getBaseUrl(publishableKey).
pixel/src/pixel.ts	Added testMode to PixelInitOptions, instance property, and buildBase().
sdk/src/types.ts	Added testMode to AudienceConfig with JSDoc.
sdk/src/sdk.ts	Added testMode instance property, wired into baseMessage().
pixel/README.md	Added Test Mode section.
sdk/README.md	Added Test Mode section.

Test plan

• All 155 @imtbl/audience-core unit tests pass
• All 96 @imtbl/pixel unit tests pass
• All 60 @imtbl/audience unit tests pass
• eslint passes on all changed files (lint-staged ran at commit)
• Verify with backend that test: true top-level field is handled correctly on ingest

🤖 Generated with Claude Code

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Note

Medium Risk
Changes where events are sent by default (always https://api.immutable.com unless baseUrl is overridden) and updates the event schema to optionally include test: true, which could affect ingestion/analytics if backend handling or consumers aren’t aligned.

Overview
Removes getBaseUrl()/test-key prefix routing and standardizes core networking to use BASE_URL = https://api.immutable.com for both ingest and consent sync (tests updated; config.test.ts deleted), while still supporting explicit baseUrl overrides.

Adds testMode?: boolean to both Pixel and Web SDK init configs; when enabled, all emitted messages include a top-level test: true field (type updated in @imtbl/audience-core).

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[nx-cloud]

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☁️ Nx Cloud last updated this comment at 2026-05-13 05:52:45 UTC

[github-actions]

✅ Audience Bundle Size — @imtbl/audience

Metric	Size	Delta vs main (f0f4f43)
Gzipped	18232 bytes (17.80 KB)	-17 bytes
Raw (minified)	53047 bytes	+6 bytes

Budget: 24.00 KB gzipped (warn at 20.00 KB)

[github-actions]

✅ Pixel Bundle Size — @imtbl/pixel

Metric	Size	Delta vs main
Gzipped	5872 bytes (5.73 KB)	-12 bytes
Raw (minified)	15856 bytes	-8 bytes

Budget: 10.00 KB gzipped (warn at 8.00 KB)

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

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^{Reviewed by Cursor Bugbot for commit 13e8cf5. Configure here.}