August 2026 · Enterprise connectivity

Cloud & database sync

Read enterprise cloud storage from iOS, push and pull ArcGIS FeatureServer without replicas, and upsert GNSS survey data straight into PostgreSQL / PostGIS.

DuckDB CloudFS

Read-only analytical access to cloud files — Parquet, CSV, JSON — with a 256 MB memory cap. OAuth 2.0 + PKCE via ASWebAuthenticationSession. Tokens live only in iOS Keychain.

  • Microsoft SharePoint — spfs://
  • Microsoft OneDrive — odfs://
  • Google Drive — gdfs://
  • Dropbox — dbxfs://

No remote writes, no arbitrary SQL against remotes, no disk spill of credentials. Connections drop when the app backgrounds.

ArcGIS FeatureServer

Bidirectional GeoServices REST — no createReplica / mobile geodatabases. Incremental push (GeoJSON → Esri Feature JSON), bulk append, and object-ID-first download so maxRecordCount never silently truncates. Bounding-box and distance filters supported.

PostgreSQL / PostGIS

DuckDB-staged batch transfer with timestamp-aware, idempotent upserts. PointZ geometry generated server-side from lon / lat / altitude. Local change journal + revision-checked acknowledgement. TLS verify-full by default.

Related: File Manager · GNSS · Spatial engine

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