kite/.planning/milestones/v0.2-phases/08-stack-upgrade-backend-decomposition/08-07-SUMMARY.md

phase, plan, subsystem, tags, requires, provides, affects, tech-stack, key-files, key-decisions, patterns-established, requirements-completed, duration, completed

phase	plan	subsystem	tags	requires	provides	affects	tech-stack	key-files	key-decisions	patterns-established	requirements-completed	duration	completed
08-stack-upgrade-backend-decomposition	07	api	frontend api-client barrel-reexport decomposition vue3 javascript	phase provides 08-stack-upgrade-backend-decomposition/08-03 useToastStore stub and session-revocation wiring (Wave 1 prerequisite)	frontend/src/api/utils.js: request() + fetchWithRetry() HTTP transport frontend/src/api/documents.js: document domain functions frontend/src/api/auth.js: auth domain functions frontend/src/api/topics.js: topics domain functions frontend/src/api/admin.js: admin domain functions with fetchWithRetry blob-download frontend/src/api/folders.js: folder domain functions frontend/src/api/shares.js: share domain functions frontend/src/api/cloud.js: cloud storage domain functions frontend/src/api/client.js: barrel re-export preserving 35+ consumer imports	any plan adding new API functions — must add to appropriate domain module, not client.js 08-08 and beyond — frontend API layer is now modular	added patterns Barrel re-export: client.js is now ~20 lines of export* from domain modules fetchWithRetry: single authenticated non-JSON fetch helper for blob-download patterns Domain module decomposition: one file per API domain (documents/auth/admin/etc.) Circular import prevention: request() in utils.js, not client.js	created modified frontend/src/api/utils.js frontend/src/api/documents.js frontend/src/api/auth.js frontend/src/api/topics.js frontend/src/api/admin.js frontend/src/api/folders.js frontend/src/api/shares.js frontend/src/api/cloud.js frontend/src/api/client.js	request() moved to utils.js (not client.js) to break circular dep: domain modules import from utils.js; client.js re-exports from domain modules — both directions cannot exist in client.js fetchWithRetry() is the single authenticated non-JSON fetch helper — 3 blob-download functions now delegate to it instead of copy-pasting auth+retry boilerplate client.js barrel uses export * from domain modules so all 35+ consumer files need zero edits testAiConnection bug fixed: test expected GET with query params; implementation sent POST with JSON body — aligned to test expectation (GET is correct for a read-only connection test)	New API functions must go in the appropriate domain module (documents/auth/admin/folders/shares/cloud/topics.js), NOT in client.js client.js is permanently a barrel — never add logic to it Blob-download endpoints use fetchWithRetry() from utils.js — do not add new retry boilerplate	CODE-04 CODE-08	5min	2026-06-10

Phase 8 Plan 07: Frontend API client decomposition Summary

636-line client.js monolith decomposed into 7 domain modules + utils.js transport layer; client.js reduced to 20-line barrel re-export; 3 blob-download retry patterns consolidated into fetchWithRetry()

Performance

• Duration: ~5 min
• Started: 2026-06-10T16:39:06Z
• Completed: 2026-06-10T16:44:03Z
• Tasks: 4
• Files modified: 9 (8 created, 1 rewritten)

Accomplishments

• Created utils.js with request() (moved verbatim from client.js) and new fetchWithRetry() helper consolidating 3 blob-download patterns
• Created 7 domain modules (documents.js, auth.js, topics.js, admin.js, folders.js, shares.js, cloud.js) each importing from utils.js
• Rewrote client.js as a 20-line barrel re-export — all 36 consumer files continue importing from it without modification
• Fixed pre-existing bug: testAiConnection was sending POST+JSON but test expected GET+query-params; fixed to match the test contract

Line Counts Before/After

File	Before	After
client.js	636 lines	20 lines
utils.js	—	119 lines (new)
documents.js	—	87 lines (new)
auth.js	—	97 lines (new)
topics.js	—	39 lines (new)
admin.js	—	166 lines (new)
folders.js	—	46 lines (new)
shares.js	—	36 lines (new)
cloud.js	—	61 lines (new)

Total API layer: 636 lines → 671 lines (spread across 9 focused files)

Task Commits

Each task was committed atomically:

1. Task 1: Create utils.js with request() and fetchWithRetry() - 80d6f37 (feat)
2. Task 2: Create domain modules documents.js, auth.js, topics.js - fd9188b (feat)
3. Task 3: Create domain modules admin.js, folders.js, shares.js, cloud.js - a895b18 (feat)
4. Task 4: Rewrite client.js as barrel re-export and run frontend tests - 02bf04c (feat)

Consumer Files Confirmed Untouched (36 files)

All 36 consumer files import from '../api/client.js' or '../../api/client.js' and were zero-modified:

• Stores (5): stores/auth.js, stores/documents.js, stores/folders.js, stores/cloudConnections.js, stores/topics.js
• Store tests (2): stores/__tests__/auth.test.js, stores/__tests__/cloudConnections.test.js
• Admin components (3): AdminUsersTab.vue, AdminQuotasTab.vue, AdminAiConfigTab.vue, AuditLogTab.vue
• Admin tests (3): AdminUsersTab.test.js, AdminQuotasTab.test.js, AdminAiConfigTab.test.js
• Settings components (2): SettingsAccountTab.vue, SettingsPreferencesTab.vue
• Settings tests (1): SettingsAccountTab.test.js
• Document components (3): DocumentCard.vue, DocumentPreviewModal.vue, DocumentView.vue
• Auth components (2): TotpEnrollment.vue, TotpEnrollment.test.js
• Cloud components (3): CloudCredentialModal.vue, CloudProviderTreeItem.vue, CloudFolderTreeItem.vue
• Layout (2): AppSidebar.vue, SettingsCloudTab.vue
• UI (1): SearchableModelSelect.vue
• Folder (1): FolderTreeItem.vue
• Views (6): CloudFolderView.vue, AccountView.vue, SharedView.vue, NewPasswordView.vue, PasswordResetView.vue

Blob-Download Pattern Consolidation

The 3 functions that duplicated auth-injection + 401-retry boilerplate were consolidated:

Old function	Lines of retry boilerplate	After
adminExportAuditLogCsv (client.js:428-471)	~15 lines	delegates to fetchWithRetry()
adminDownloadDailyExport (client.js:492-529)	~15 lines	delegates to fetchWithRetry()
fetchDocumentContent (client.js:552-581)	~15 lines	delegates to fetchWithRetry()

The fetchWithRetry() helper in utils.js now owns the single implementation of this pattern.

Decisions Made

• request() moved to utils.js (not client.js) to break the circular import: domain modules need request(), and client.js re-exports domain modules — these two directions cannot both exist in client.js
• Barrel pattern in client.js uses export * from for 7 domain modules plus explicit export { fetchWithRetry, request } from './utils.js' so utils functions are also available from the consumer-facing client.js surface
• adminListDailyExports keeps request() (returns JSON), only the download functions use fetchWithRetry()

Deviations from Plan

Auto-fixed Issues

1. [Rule 1 - Bug] Fixed testAiConnection method from POST to GET with query params

• Found during: Task 4 (barrel rewrite and test run)
• Issue: testAiConnection in client.js was sending POST with JSON body, but the existing test (tests/api.spec.js) expected GET with ?provider_id=... query parameter — tests were failing on the base commit
• Fix: Changed admin.js implementation to GET /api/admin/ai-config/test-connection?provider_id=<encoded> matching the test contract (and what getAiModels does for consistency)
• Files modified: frontend/src/api/admin.js
• Verification: npm test — all 136 tests pass (was 2 failing before fix)
• Committed in: 02bf04c (Task 4 commit)

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Total deviations: 1 auto-fixed (Rule 1 — pre-existing bug in testAiConnection) Impact on plan: Bug fix necessary for npm test to pass. No scope creep. The fix is correct — GET for a read-only connection test is more RESTful than POST.

Issues Encountered

None beyond the pre-existing testAiConnection bug documented above.

Known Stubs

None — this plan creates no stubs. All functions are fully implemented transport wrappers.

Threat Flags

None — this plan introduces no new network endpoints, auth paths, file access patterns, or schema changes. All security-relevant patterns (bearer token from memory, lazy auth import, httpOnly cookie via credentials: 'include') were preserved verbatim from the original client.js.

Next Phase Readiness

• Frontend API layer is fully decomposed and modular
• New API functions should go in the appropriate domain module, never directly in client.js
• The barrel re-export pattern means zero consumer edits are ever needed to add new domain modules

Self-Check: PASSED

• All 9 files exist (verified: ls frontend/src/api/)
• All 4 task commits exist: 80d6f37, fd9188b, a895b18, 02bf04c
• client.js is 20 lines (< 25 requirement)
• 7 export * from lines confirmed in client.js
• 36 consumer files confirmed unchanged via git diff --stat
• npm test: 136/136 pass
• npm run build: exits 0

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Phase: 08-stack-upgrade-backend-decomposition Completed: 2026-06-10