Set the region to be the closest to the user

[aidankmcalister]

Checks the geolocation of the user and finds the closest region

Summary by CodeRabbit

• New Features
  • Automatically suggests the nearest region for new databases based on your approximate location, reducing setup friction and improving performance by placing data closer to you.
  • Falls back to a safe default region if location cannot be determined, ensuring reliable creation flows.
  • Existing options to list, validate, and manually choose regions remain unchanged, so you stay in control.

[coderabbitai]

Walkthrough

Adds geolocation-based default region selection to database creation. Fetches user location from ipapi.co, computes nearest predefined region via Haversine distance, and uses it as the default. Falls back to "us-east-1" if location is unavailable. Existing region listing, validation, and creation flows remain unchanged.

Changes

Cohort / File(s)	Change Summary
Location-aware region selection create-db/index.js	Added detectUserLocation() calling ipapi.co with custom User-Agent; introduced REGION_COORDINATES map; implemented getRegionClosestToLocation() using Haversine distance; updated main() to asynchronously derive a default region from user location with fallback to "us-east-1"; preserved existing region listing, validation, and creation flows.

Sequence Diagram(s)

sequenceDiagram
  autonumber
  participant U as User
  participant CLI as create-db/index.js
  participant Geo as ipapi.co
  participant Sel as Region Selector
  participant Svc as DB Service

  U->>CLI: Run create-db
  rect rgb(235, 245, 255)
    note right of CLI: New: location-based default region
    CLI->>Geo: detectUserLocation() (HTTP, User-Agent)
    alt Location available
      Geo-->>CLI: country/region/city/lat/lon
      CLI->>Sel: getRegionClosestToLocation(location)
      Sel-->>CLI: nearestRegionId
      CLI->>CLI: region = nearestRegionId
    else Location unavailable/error
      Geo--x CLI: failure/null
      CLI->>CLI: region = "us-east-1" (fallback)
    end
  end

  CLI->>CLI: validate region
  alt Valid
    CLI->>Svc: create database (region)
    Svc-->>CLI: creation result
    CLI-->>U: Output success/details
  else Invalid
    CLI-->>U: Error: invalid region
  end

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Status	Name	Latest Commit	Preview URL	Updated (UTC)
✅ Deployment successful! View logs	claim-db-worker	b58830f	Commit Preview URL Branch Preview URL	Aug 26 2025, 09:01 PM

[github-actions]

✅ Preview CLIs & Workers are live!

Test the CLIs locally under tag pr47-DC-4759-set-region-to-be-near-user-17250359916:

npx create-db@pr47
npx create-pg@pr47
npx create-postgres@$pr47

Worker URLs
• Create-DB Worker:
• Claim-DB Worker:

These will live as long as this PR exists under tag pr47-DC-4759-set-region-to-be-near-user-17250359916.

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Actionable comments posted: 5

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📥 Commits

Reviewing files that changed from the base of the PR and between 1caa532 and b58830f.

📒 Files selected for processing (1)

• create-db/index.js (2 hunks)

🧰 Additional context used

🧬 Code graph analysis (1)

create-db/index.js (1)

create-db-worker/src/index.ts (1)

• fetch (13-115)

⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (2)

• GitHub Check: Workers Builds: claim-db-worker
• GitHub Check: Workers Builds: create-db-worker