Session: glimmering-imagining-sparrow-subagent-a8824c1 — 2026-02-02

Project: doctolib-doctolib · Branch: master · Mode: ` · **Model:**claude-haiku-4-5-20251001`

Stats: 1 user messages, 27 tool calls, tools used: Bash, Grep, Read.

Conversation

Turn 1 — User

Find all usages of the feature switch UPLOAD_DOCUMENT_WRITE in the codebase. I need to understand:

1. What code path changes when this feature switch is ON vs OFF?
2. What's different in the document upload flow?
3. What's different in the document object structure after upload?
4. Does this FS affect how documents are stored, encrypted, or returned from the API?

Search for: - Feature switch definition in config/feature_switches.yml - All code that checks this feature switch - Upload mutation code that branches on this feature switch - Any differences in document response format

Key areas to check: - engines/documents/app/assets/javascripts/queries/documents/doctor_app/documents.ts - Any upload-related backend code in engines/documents/ - Document API controllers that might behave differently

Turn 1 — Assistant

I'll help you find all usages of the UPLOAD_DOCUMENT_WRITE feature switch. Let me search systematically across the codebase.

Tools used:

• Bash: find . -name "feature_switches.yml" -type f 2>/dev/null | head -20

Tool results:

→ result (ok): ./test/fixtures/files/application_preference/feature_switches.yml ./config/feature_switches.yml ./lib/data/organization/feature_switches.yml

Now let me search for the feature switch definition and all usages:

Tools used:

• Grep: UPLOAD_DOCUMENT_WRITE in /Users/USER/workspace/doctolib/doctolib

Tool results:

→ result (ok): No files found

Let me check the feature switches configuration files:

Tools used:

• Read: /Users/USER/workspace/doctolib/doctolib/config/feature_switches.yml

Tool results:

→ result (ERROR): <tool_use_error>File content (392.8KB) exceeds maximum allowed size (256KB). Please use offset and limit parameters to read specific portions of the file, or use the GrepTool to search for specific content.</tool_use_error>

Let me search for the feature switch in the config file:

Tools used:

• Grep: UPLOAD_DOCUMENT in /Users/USER/workspace/doctolib/doctolib/config/feature_switches.yml

Tool results:

→ result (ok): No files found

Let me search more broadly for the feature switch:

Tools used:

• Bash: grep -r "UPLOAD_DOCUMENT_WRITE" . --include="*.yml" --include="*.yaml" --include="*.ts" --include="*.tsx" --include="*.js" --include="*.jsx" --include="*.rb" 2>/dev/null | head -50

Tool results:

→ result (ok)

The search returned no results. Let me check if there's a similar feature switch name:

Tools used:

• Bash: grep -r "UPLOAD_DOCUMENT" . --include="*.yml" --include="*.yaml" --include="*.ts" --include="*.tsx" --include="*.js" --include="*.jsx" --include="*.rb" 2>/dev/null | head -30

Tool results:

→ result (ok): <persisted-output> Output too large (169.8KB). Full output saved to: /Users/USER/.claude/projects/-Users-clertonra-workspace-doctolib-doctolib/ec3195ed-8479-410c-9fb2-c5774097f38e/tool-results/toolu_012YtSpZaU6Wk91nKF35WVz4.txt

Preview (first 2KB): ./app/assets/javascripts/contexts/doctor/desktop/DocumentImportContext.tsx: UPLOAD_DOCUMENT_FEATURE_SWITCH_OVERRIDE, ./app/assets/javascripts/contexts/doctor/desktop/DocumentImportContext.tsx: featureSwitchOverride: UPLOAD_DOCUMENT_FEATURE_SW …(truncated, 1774 more chars)

Good! There are results. Let me look at the full output file:

Tools used:

• Bash: cat /Users/USER/.claude/projects/-Users-clertonra-workspace-doctolib-doctolib/ec3195ed-8479-410c-9fb2-c5774097f38e/tool-results/toolu_012YtSpZaU6Wk91nKF35WVz4.txt 2>/dev/null | head -100

Tool results:

→ result (ok): <persisted-output> Output too large (169.8KB). Full output saved to: /Users/USER/.claude/projects/-Users-clertonra-workspace-doctolib-doctolib/ec3195ed-8479-410c-9fb2-c5774097f38e/tool-results/toolu_01SKehkk2NHsZTVZgg6DeNGh.txt

Preview (first 2KB): ./app/assets/javascripts/contexts/doctor/desktop/DocumentImportContext.tsx: UPLOAD_DOCUMENT_FEATURE_SWITCH_OVERRIDE, ./app/assets/javascripts/contexts/doctor/desktop/DocumentImportContext.tsx: featureSwitchOverride: UPLOAD_DOCUMENT_FEATURE_SW …(truncated, 1774 more chars)

Let me search for the feature switch in a more targeted way:

Tools used:

• Bash: grep -r "UPLOAD_DOCUMENT_WRITE" . 2>/dev/null

Tool results:

→ result (ok): Command running in background with ID: b06eb22. Output is being written to: /private/tmp/claude-501/-Users-clertonra-workspace-doctolib-doctolib/tasks/b06eb22.output

Let me search for documents-related upload code instead:

Tools used:

• Bash: find . -path ./node_modules -prune -o -path ./public/webpack -prune -o -type f -name "*document*.ts" -o -name "*document*.tsx" | grep -i "upload\|query" | head -30

Tool results:

→ result (ok): ./app/assets/javascripts/services/formatters/countries/configs/document-upload-kinds.ts ./packages/@doctolib/patient_account_documents/src/components/shared/DocumentUploadModule/documentUploadReducer.ts ./packages/@doctolib/product-event-wrapper/src/business/resources/PHR/features/document_upload.ts

Tools used:

• Bash: find ./engines/documents -type f \( -name "*.ts" -o -name "*.tsx" -o -name "*.rb" \) 2>/dev/null | head -50

Tool results:

→ result (ok): ./engines/documents/app/mailers/documents/document_mailer.rb ./engines/documents/app/mailers/documents/application_mailer.rb ./engines/documents/app/models/documents/document_filename.rb ./engines/documents/app/models/documents/telehealth/document_kind.rb ./engines/documents/app/models/documents/db4_record.rb ./engines/documents/app/models/documents/renderer/variant.rb ./engines/documents/app/models/documents/renderer/document_accesses.rb ./engines/documents/app/models/documents/renderer/variant …(truncated, 2948 more chars)

Tools used:

• Bash: find ./engines/documents/app/assets/javascripts -type f \( -name "*.ts" -o -name "*.tsx" \) 2>/dev/null | head -30

Tool results:

→ result (ok): ./engines/documents/app/assets/javascripts/types/Document.ts ./engines/documents/app/assets/javascripts/types/qes/Card.ts ./engines/documents/app/assets/javascripts/types/ClearDocument.ts ./engines/documents/app/assets/javascripts/types/unclassifiedDocument.ts ./engines/documents/app/assets/javascripts/patient-clear-documents/components/MobileClearDocumentViewer/MobileClearDocumentViewer.tsx ./engines/documents/app/assets/javascripts/patient-clear-documents/index.ts ./engines/documents/app/asset …(truncated, 2446 more chars)

Now let me check the documents.ts file mentioned in your key areas:

Tools used:

• Read: /Users/USER/workspace/doctolib/doctolib/engines/documents/app/assets/javascripts/queries/documents/doctor_app/documents.ts

Tool results:

→ result (ok): 1→/* 2→ * @file 3→ * @deprecated This file is deprecated and will be removed in future releases. 4→ * Please use the new implementation in packages/@doctolib/documents-ui/src/data/queries/documents.ts. 5→ * This refactor happens because of the react query migration to v5. 6→ * Feel free to move endpoints to this new file. 7→ / 8→ 9→import path from 'path' 10→import { useContext } from 'react' 11→import type { DoctorAppDocument } from '@doctolib/f …(truncated, 25461 more chars)

Now let me check the documents-ui package for the feature switch implementation:

Tools used:

• Bash: find ./packages/@doctolib/documents-ui -name "*.ts" -o -name "*.tsx" | head -50

Tool results:

→ result (ok): ./packages/@doctolib/documents-ui/src/components/DocumentCard.test.tsx ./packages/@doctolib/documents-ui/src/components/shared/DocumentActions.tsx ./packages/@doctolib/documents-ui/src/components/shared/HoverContainer.tsx ./packages/@doctolib/documents-ui/src/components/shared/DocumentInfo.tsx ./packages/@doctolib/documents-ui/src/components/shared/NewPin.tsx ./packages/@doctolib/documents-ui/src/components/DocumentCard.tsx ./packages/@doctolib/documents-ui/src/constants.ts ./packages/@doctolib/ …(truncated, 2064 more chars)

Tools used:

• Read: /Users/USER/workspace/doctolib/doctolib/packages/@doctolib/documents-ui/src/helpers/buildDocumentEndpoint.ts

Tool results:

→ result (ok): 1→import { isFeatureEnabled } from '@doctolib/variation_management' 2→import type { FeatureSwitchOverride } from './types' 3→ 4→// Helper function to determine if V2 API should be used 5→export function shouldUseV2Api(featureSwitchOrOverride?: string | FeatureSwitchOverride): boolean { 6→ // Handle FeatureSwitchOverride object 7→ if (typeof featureSwitchOrOverride === 'object' && featureSwitchOrOverride !== null) { 8→ const override = featureSwitchOrOverri …(truncated, 1654 more chars)

Now let me check for UPLOAD_DOCUMENT_WRITE in documents-ui:

Tools used:

• Bash: grep -r "document_single_write\|document_double_write\|UPLOAD_DOCUMENT" ./packages/@doctolib/documents-ui/src --include="*.ts" --include="*.tsx" 2>/dev/null

Tool results:

→ result (ok): ./packages/@doctolib/documents-ui/src/constants.ts:export const UPLOAD_DOCUMENT_FEATURE_SWITCH_OVERRIDE: FeatureSwitchOverride = { ./packages/@doctolib/documents-ui/src/hooks/useEncryptedDocumentFormDataBuilder.ts: * global document_single_write and document_double_write flags. ./packages/@doctolib/documents-ui/src/index.ts: UPLOAD_DOCUMENT_FEATURE_SWITCH_OVERRIDE, ./packages/@doctolib/documents-ui/src/data/queries/documents.test.tsx: if (flag === 'document_single_write') return true …(truncated, 12500 more chars)

Perfect! Now let me read the key files to understand the feature:

Tools used:

• Read: /Users/USER/workspace/doctolib/doctolib/packages/@doctolib/documents-ui/src/constants.ts

Tool results:

→ result (ok): 1→import type { FeatureSwitchOverride } from './helpers/types' 2→ 3→// Feature switch override for upload_document_write double-write mode 4→export const UPLOAD_DOCUMENT_FEATURE_SWITCH_OVERRIDE: FeatureSwitchOverride = { 5→ featureSwitch: 'upload_document_write', 6→ mode: 'double-write', 7→} 8→ 9→// Feature switch override for mobile confirmation module upload double-write mode 10→export const MOBILE_CONFIRMATION_UPLOAD_FEATURE_SWITCH_OVERRIDE: Featu …(truncated, 476 more chars)

Tools used:

• Read: /Users/USER/workspace/doctolib/doctolib/packages/@doctolib/documents-ui/src/helpers/types.ts

Tool results:

→ result (ok): 1→import type { OcrResult } from 'monolith_DEPRECATED/hooks/doctor/useOCR/types' 2→ 3→/* 4→ * Valid field names that can be encrypted in document forms. 5→ * These correspond to fields in the document API that support encryption. 6→ / 7→export type EncryptableDocumentField = 8→ | 'filename' 9→ | 'ocr_result' 10→ | 'originating_email_sender' 11→ | 'originating_email_subject' 12→ | 'originating_email_body' 13→ | 'originating_email_add …(truncated, 3314 more chars)

Tools used:

• Read: /Users/USER/workspace/doctolib/doctolib/packages/@doctolib/documents-ui/src/helpers/EncryptedDocumentFormDataBuilder.ts

Tool results:

→ result (ok): 1→import type { ShareWith } from '@doctolib/deepwater_core/public' 2→import type { EncryptFile, EncryptRecord } from 'engines/e2ee/public' 3→import { isFeatureEnabled } from '@doctolib/variation_management' 4→import type { DocumentFormBody, EncryptableDocumentField, FeatureSwitchOverride } from './types' 5→import { getEncryptedFileFormBody } from './formDataFileEncryption' 6→import { appendFormDataSerialized } from './appendFormDataSerialized' 7→import type { Docume …(truncated, 15811 more chars)

Tools used:

• Read: /Users/USER/workspace/doctolib/doctolib/packages/@doctolib/documents-ui/src/helpers/formDataFileEncryption.ts

Tool results:

→ result (ok): 1→import { isFeatureEnabled } from '@doctolib/variation_management' 2→import type { ShareWith } from '@doctolib/deepwater_core/public' 3→import type { EncryptFile } from 'engines/e2ee/public' 4→import type { DocumentFormBody, FeatureSwitchOverride } from './types' 5→ 6→export interface GetEncryptedFileFormBodyParams { 7→ file: File | Blob 8→ shareWith: ShareWith[] 9→ encryptFile: EncryptFile 10→ isEncryptionEnabled?: () => boolean 11→ /**

…(truncated, 3370 more chars)

Now let me check the backend code to see how it handles these different modes:

Tools used:

• Bash: find ./engines/documents/app/controllers -name "*.rb" | head -20

Tool results:

→ result (ok): ./engines/documents/app/controllers/documents/application_controller.rb ./engines/documents/app/controllers/documents/pharmacy/documents_controller.rb ./engines/documents/app/controllers/documents/configuration/application_controller.rb ./engines/documents/app/controllers/documents/configuration/cloudinary_documents_controller.rb ./engines/documents/app/controllers/documents/configuration/clear_documents_controller.rb ./engines/documents/app/controllers/documents/patient_app/application_controll …(truncated, 1293 more chars)

Tools used:

• Read: /Users/USER/workspace/doctolib/doctolib/engines/documents/app/controllers/documents/doctor_app/documents_controller.rb

Tool results:

→ result (ok): 1→# frozen_string_literal: true 2→ 3→class Documents::DoctorApp::DocumentsController < Documents::DoctorApp::ApplicationController 4→ include SoftDeletedRecordsLogging 5→ include Documents::ParseSignedId 6→ helper Documents::DocumentHelper 7→ helper_method :document_visible_by_professional?, :clear_document_path, :render_document_shared_by, :document_filename 8→ 9→ authenticate_with Authentication::Api::Filter::ACCOUNT 10→ before_action :set_depe …(truncated, 28282 more chars)

Now let me check the V2 API endpoint handler:

Tools used:

• Bash: find ./engines/documents -path "*v2*" -name "*documents_controller.rb" 2>/dev/null | head -10

Tool results:

→ result (ok): ./engines/documents/app/controllers/documents/doctor_app/v2/documents_controller.rb

Tools used:

• Read: /Users/USER/workspace/doctolib/doctolib/engines/documents/app/controllers/documents/doctor_app/v2/documents_controller.rb

Tool results:

→ result (ok): 1→# frozen_string_literal: true 2→ 3→# V2 Documents REST Controller - Drop-in replacement for V1 4→# 5→# Architecture: 6→# - Thin wrapper around Documents::V3::DocumentService 7→# - Inherits from V1 controller to reuse all helper methods 8→# - Converts ActionDispatch::UploadedFile to hash for service 9→# - Returns V2 JSON response (without Tanker encryption details) 10→# 11→# Key differences from V1 (internal only): 12→# - Uses Documents::V3::D …(truncated, 15746 more chars)

Perfect! Now let me check if there's more information in the V3 DocumentService:

Tools used:

• Bash: find ./engines/documents -path "*v3*" -name "*service*.rb" 2>/dev/null | head -10

Tool results:

→ result (ok): ./engines/documents/app/services/documents/v3/metrics_service.rb ./engines/documents/app/services/documents/v3/ehr_import_v2/content_upload_service.rb ./engines/documents/app/services/documents/v3/ehr_import_v2/s3_bulk_delete_service.rb ./engines/documents/app/services/documents/v3/ehr_import_v2/orphan_cleanup_service.rb ./engines/documents/app/services/documents/v3/ehr_import_v2/s3_copy_service.rb ./engines/documents/app/services/documents/v3/ehr_import_v2/listing_service.rb ./engines/documents …(truncated, 300 more chars)

Tools used:

• Bash: find ./engines/documents/app/services -name "document_service.rb" 2>/dev/null

Tool results:

→ result (ok): ./engines/documents/app/services/documents/v2/document_service.rb ./engines/documents/app/services/documents/v3/document_service.rb

Tools used:

• Read: /Users/USER/workspace/doctolib/doctolib/engines/documents/app/services/documents/v3/document_service.rb (1–200)

Tool results:

→ result (ok): 1→# frozen_string_literal: true 2→ 3→module Documents 4→ module V3 5→ # V3 DocumentService: Refactored document service addressing SOLID violations 6→ # 7→ # Key differences from V2: 8→ # - Pure orchestration (no embedded business logic) 9→ # - Tanker encryption settings centralized in TankerEncryptionContext 10→ # - Delegates encryption to MetadataEncryptionService and FileEncryptionService 11→ # - Delegates persistence to Do …(truncated, 9983 more chars)

Now I have a good understanding. Let me create a comprehensive summary document. First, let me verify the exact paths to some files to reference:

Tools used:

• Bash: grep -n "UPLOAD_DOCUMENT_FEATURE_SWITCH_OVERRIDE\|upload_document_write" ./packages/@doctolib/documents-ui/src/constants.ts

Tool results:

→ result (ok): 3:// Feature switch override for upload_document_write double-write mode 4:export const UPLOAD_DOCUMENT_FEATURE_SWITCH_OVERRIDE: FeatureSwitchOverride = { 5: featureSwitch: 'upload_document_write',

Perfect! Now I have all the information I need. Let me provide you with a comprehensive analysis:

Summary: UPLOAD_DOCUMENT_WRITE Feature Switch Analysis

Based on my thorough search of the codebase, I found that UPLOAD_DOCUMENT_WRITE is not a direct feature switch name. Instead, it's part of a more sophisticated feature switch system. Here's what I discovered:

1. Feature Switch Definition

Location: /Users/USER/workspace/doctolib/doctolib/packages/@doctolib/documents-ui/src/constants.ts

export const UPLOAD_DOCUMENT_FEATURE_SWITCH_OVERRIDE: FeatureSwitchOverride = {
  featureSwitch: 'upload_document_write',
  mode: 'double-write',
}

The actual feature switch is named upload_document_write and uses double-write mode.

2. What Code Path Changes: The Three Encryption Modes

The system supports three encryption modes controlled by global feature switches (document_single_write, document_double_write):

Mode 1: Default (No Flags)

• Behavior: Encrypted-only (legacy)
• File handling: Encrypts with Tanker, uploads only encrypted version
• What gets sent: Only encrypted data

Mode 2: Single-Write (document_single_write enabled)

• Behavior: Cleartext-only (SSE storage)
• File handling: Skips encryption, sends cleartext file
• What gets sent: Plain file only
• Used by: SSE-only uploads without Tanker encryption

Mode 3: Double-Write (document_double_write enabled)

• Behavior: Both encrypted AND cleartext
• File handling: Sends both plain file AND encrypted file
• What gets sent:
• file: Original plaintext file
• tanker_encrypted_file: Encrypted version (pre-encrypted on client)
• Used by: upload_document_write feature switch

3. Document Upload Flow Differences

Key File: /Users/USER/workspace/doctolib/doctolib/packages/@doctolib/documents-ui/src/helpers/formDataFileEncryption.ts

// When double-write mode (upload_document_write) is enabled:
return {
  formBody: {
    file,                      // Plaintext file
    tanker_encrypted_file: encryptedFile,  // Pre-encrypted file
  },
  resourceId,
}

// When single-write mode is enabled:
return {
  formBody: {
    tanker_encrypted: 'false',
    file,  // Plaintext only
  },
  resourceId: '',  // No encryption resource
}

4. Document Object Structure After Upload

Backend handling: /Users/USER/workspace/doctolib/doctolib/engines/documents/app/controllers/documents/doctor_app/v2/documents_controller.rb (lines 263-273)

The V2 controller accepts both files:

def extract_file_from_params
  params[:file] || params[:document]&.dig(:file)
end

def extract_tanker_encrypted_file
  params[:tanker_encrypted_file] || params[:document]&.dig(:tanker_encrypted_file)
end

The backend (v3/document_service.rb) stores: - Document with tanker_encrypted boolean flag - Optional pre-encrypted data from client - Plaintext file to SSE bucket

5. Storage, Encryption & API Response Differences

Backend Service Logic: /Users/USER/workspace/doctolib/doctolib/engines/documents/app/services/documents/v3/document_service.rb (lines 67-72)

# Determine if document will use Tanker encryption
has_pre_encrypted_data = encryption_options&.dig(:tanker_encrypted_file).present?
tanker_encrypted = has_pre_encrypted_data || backfill_tanker

Storage Behavior: - SSE Bucket (Always): Plain file uploaded - Legacy Tanker Bucket (Conditional): - If tanker_encrypted_file provided → upload as-is (pre-encrypted from client) - If backfill_tanker enabled → server-side encrypt - Otherwise → skip

6. Key Architectural Points

Feature Switch Hierarchy (Priority Order): 1. Method-level override parameter 2. Constructor-level override (UPLOAD_DOCUMENT_FEATURE_SWITCH_OVERRIDE) 3. Global feature switches (document_single_write or document_double_write)

Files Handling Double-Write Mode:

• Frontend: /Users/USER/workspace/doctolib/doctolib/packages/@doctolib/documents-ui/src/helpers/EncryptedDocumentFormDataBuilder.ts

• Line 284-314: appendToFormData() method handles appending both encrypted and cleartext versions

• Frontend: /Users/USER/workspace/doctolib/doctolib/engines/documents/app/assets/javascripts/queries/documents/doctor_app/documents.ts

• Line 369: Uses buildDocumentEndpoint() to determine V1 vs V2 API endpoint

• Line 512: Routes to different endpoints based on feature switch

• Backend V2: /Users/USER/workspace/doctolib/doctolib/engines/documents/app/controllers/documents/doctor_app/v2/documents_controller.rb

• Accepts both file and tanker_encrypted_file
• Routes to Documents::V3::DocumentService

7. API Endpoint Impact

The feature switch affects which API endpoint is called:

// From buildDocumentEndpoint.ts
export function buildDocumentEndpoint(
  documentId?: string,
  featureSwitchOverride?: string | FeatureSwitchOverride
): string {
  const version = shouldUseV2Api(featureSwitchOverride) ? '/v2' : ''
  const documentPath = documentId ? `/${documentId}` : ''
  return `/doctor_app${version}/documents${documentPath}`
}

• V1 Endpoint: /doctor_app/documents (deprecated, encrypted-only)
• V2 Endpoint: /doctor_app/v2/documents (supports both files, SSE-first)

8. Monitoring & Tracking

File: /Users/USER/workspace/doctolib/doctolib/packages/@doctolib/documents-ui/src/helpers/monitoring/documentEncryptionMonitoring.ts

// Included in monitoring events:
{
  document_single_write_enabled: isFeatureEnabled('document_single_write'),
  document_double_write_enabled: isFeatureEnabled('document_double_write'),
}

Summary Table