2025-12-01 – Weekly GIS News : PostGIS vs. TypeScript debate

Last week in our GIS community, discussions spanned a wide range of topics, from advanced technical explorations to practical application challenges. Members debated the merits of different programming languages for GIS projects, underscoring a recurring interest in bridging the gap between traditional GIS tools and modern web technologies. There was also a strong focus on data resources, particularly in the context of environmental and urban studies, highlighting the community’s ongoing commitment to leveraging GIS for addressing real-world issues.


This Week’s Hot Topics

  • PostGIS deep dive or TypeScript next
    A lively debate on whether to focus on mastering PostGIS or pivoting to TypeScript, reflecting the community’s blend of database and development interests.
    Read more here

  • Best open canopy data for heat equity
    Members shared insights on various open data sources for analyzing tree canopy coverage, crucial for urban heat assessments and planning.
    Read more here

  • Practical resources for peak-hour route calibration
    A thread focused on tools and techniques to fine-tune route planning during peak traffic hours, offering practical advice for transportation planners.
    Read more here

  • Reliable CityGML to 3D Tiles pipeline
    Discussion on converting CityGML to 3D Tiles, addressing the challenges of creating seamless 3D visualizations for urban environments.
    Read more here

  • Best courses for spatial crime analysis
    A roundup of recommended courses for those looking to specialize in spatial crime analysis, reflecting a growing interest in this niche field.
    Read more here

  • Python or TypeScript for first web map
    A practical discussion on choosing between Python or TypeScript for developing a first web map, highlighting the learning paths for new GIS developers.
    Read more here


Thank you for staying engaged with our community. It’s your participation that makes these discussions valuable and impactful. Looking forward to another week of insightful exchanges.

On a recent app, I pushed the heavy spatial work into PostGIS and served tiles with ST_AsMVT (https://postgis.net/docs/ST_AsMVT.html), letting TypeScript stick to UI state and light filters. That “bridged the gap” and cut map loads from about 1.3s to about 250ms. Caveat: if you need complex client-side filtering, keep a slim GeoJSON endpoint so TS can slice locally.

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