GSoC-2026 Community Bonding Report: Time-Travel Data Access and Versioning UI for istSOS Web Administration

bhudevbhanpuriya · May 27, 2026, 5:26pm

Project: Time-Travel Data Access and Versioning UI for istSOS Web Administration
Organization: OSGeo / istSOS
Contributor: Bhudev Bhanpuriya
Mentors: Massimiliano Cannata, Daniele Strigaro, Claudio Primerano
Period: Community Bonding

Primary Objectives

Establish a reliable communication rhythm and feedback loop with mentors.
Set up and verify the local development environment.
Gain a deep understanding of the istSOS4 time-travel backend architecture and versioning schema before coding begins.

Key Accomplishments

Community & Program Integration

Set up my OSGeo Profile and added my project details to the OSGeo Accepted Students 2026 Page.
Reviewed the GSoC student guide, OSGeo contributor instructions, and OSGeo’s expectations during the summer - all helpful in grounding my understanding of program expectations.

Community Interaction

Introduced myself to the istSOS community and connected with mentors to align on project goals and communication preferences.
Had exchanges with fellow GSoC contributors to compare progress and share onboarding experiences.

Codebase Familiarity & Environment Setup

Successfully built the istSOS project locally and configured the full development environment.
Conducted a deep dive into the time-travel backend: studied all traveltime model files (thing_traveltime.py, sensor_traveltime.py, datastream_traveltime.py, and others), the versioning SQL schema (istsos_schema_versioning.sql), and the traveltime.ipynb tutorial notebooks.
Mapped out existing as_of and from_to API parameter support across entity types to identify any backend gaps that may need closing during Phase 2.
Began planning the frontend architecture - specifically the TravelTimeQueryService query mapping layer and how time-travel controls will integrate into the existing administration UI without disrupting current workflows.

Next Steps - Entering Phase 1

Begin implementation of the time-selection UI components: the single-instant (as_of) picker and the date range (from_to) picker, integrated into the administration interface toolbar.
Build the frontend query mapping service that converts UI selections into correct API query parameters.
Wire up initial historical entity views for Things and Sensors as the first two entities.
Deliverable: A working PR covering the time-selection components and query mapping layer, with historical views functional for Things and Sensors.

Regards,
Bhudev Bhanpuriya
GSoC 2026 Contributor - OSGeo / istSOS OSGeo Profile