Flutter

This is a summary of reconfiguring code signing settings from scratch while uploading a Flutter app to TestFlight. The process uses manual signing + App Store Connect API Key instead of Xcode automatic signing. Overall Flow [1] Issue Distribution Certificate [2] Issue APNs Certificate (CSR generation required) [3] Enable Push Notifications on App ID [4] Create Provisioning Profile (App Store, Push included) [5] xcodebuild archive + export (API Key authentication) [6] Upload to TestFlight via xcrun altool 1. Distribution Certificate Apple Developer -> Certificates -> + -> Select Apple Distribution. ...

Notes on integrating the DART Open API (Korea’s Financial Supervisory Service disclosure system) with a Rails backend. Implemented 5 areas: disclosure monitoring, audit opinions, governance, financial indexes, and equity reports – each step came with its own struggles. Implementation Structure Created a model and ActiveJob for each data type. Each job calls the DART API and inserts data using upsert_all – simple structure. DartCorpCodeSyncJob -> dart_companies (company master) DartDisclosureSyncJob -> dart_disclosures (disclosure list) DartMajorEventSyncJob -> dart_major_events (delisting trigger events -- DS001) DartAuditOpinionSyncJob -> dart_audit_opinions (audit opinions -- DS002/DS003) DartGovernanceSyncJob -> dart_executives / dart_major_shareholders (DS004/DS005) DartFinancialIndexSyncJob -> dart_financial_indexes (fnlttSinglAcntAll) DartEquityReportSyncJob -> dart_equity_reports (equity disclosures) Struggle 1: upsert_all + update_only + updated_at Duplication The first error to hit. ...