Python app uses a Flask API that calls three geolocation endpoints. As a construction prop tech technology, it talks to a hosted Postgres database and runs a daily cron job. Give me an architecture diagram and a PRD for that.
A construction prop tech platform that uses a Flask API to enrich and validate property/location data by calling three geolocation endpoints, storing operational and customer data in hosted Postgres, and running a daily cron job for batch updates and data hygiene. It helps teams quickly identify, normalize, and trust location intelligence for sites, assets, permits, and project planning.
Increase qualified lead conversion by 15% by making location data more actionable for construction and prop tech workflows.
Reduce manual geolocation research time by 70%, improving customer retention and perceived product value.
Establish the company as a location-intelligence leader in construction technology through reliable, automated geodata workflows.
Improve gross margin by automating daily data refresh and reducing support tickets related to inconsistent location records.
Collect usage analytics on geolocation requests, endpoint reliability, and search patterns to guide future monetization and product expansion.
Allow project, operations, and real estate teams to quickly resolve an address or parcel into accurate geolocation context.
Help users trust data quality by comparing results from multiple geolocation sources and surfacing confidence signals.
Automate recurring location checks so users do not need to manually revalidate site and asset records every day.
Reduce errors in planning, permitting, and delivery by standardizing location data across systems.
Support collaboration by giving internal teams a shared source of truth for construction-related geolocation insights.
The product will not provide full GIS editing or map-drawing capabilities like a dedicated geospatial design tool.
The product will not replace enterprise master data management or legal title/parcel ownership systems.
The product will not support real-time vehicle tracking or IoT telemetry in the first release.
The product will not store or process payment data beyond standard subscription billing handled by a third-party provider.
Maya manages construction project records and needs fast, reliable location validation to keep schedules, permits, and vendor coordination on track.
As a Project Coordinator, I want to search an address and see normalized geolocation output, so that I can update project records without manual research.
As a Project Coordinator, I want to compare results from multiple geolocation endpoints, so that I can trust the best available location reference.
As a Project Coordinator, I want a daily refresh of active project locations, so that stale records are automatically flagged before they cause delays.
David monitors many active sites and needs operational visibility into location accuracy, exception cases, and batch data updates.
As an Operations Manager, I want to view a dashboard of failed or low-confidence geolocation matches, so that I can prioritize data cleanup.
As an Operations Manager, I want automated cron-based rechecks of active sites, so that recurring changes in geodata are caught early.
As an Operations Manager, I want audit trails for geolocation changes, so that I can explain why a site record changed over time.
Sara is responsible for system uptime, API health, and ensuring the app integrates safely with downstream business systems.
As a Platform Admin, I want API health monitoring for all three geolocation providers, so that I can quickly detect service degradation.
As a Platform Admin, I want configurable retry and fallback logic, so that the product remains resilient when one endpoint fails.
As a Platform Admin, I want secure access controls for database-backed records, so that customer data remains isolated and protected.
The Flask API must query three geolocation endpoints, merge the responses, and return a normalized location object that downstream users can trust.
Support a single request that fans out to three external geolocation providers in parallel or controlled sequence.
Normalize fields such as latitude, longitude, formatted address, confidence score, and provider source.
Apply response ranking logic to choose the best result based on confidence, completeness, and latency.
Expose error states when one or more providers time out, return invalid payloads, or disagree materially.
Cache recent successful lookups to reduce repeated external calls and improve response times.
The platform must persist user records, project/site location data, provider responses, and audit history in a hosted Postgres database.
Store canonical location records, raw provider payloads, and transformation history separately for traceability.
Use relational tables for projects, locations, users, jobs, cron runs, and event logs.
Support indexing on address, parcel identifier, project ID, and updated_at for fast lookups.
Maintain migration strategy for schema evolution as location fields expand.
Enforce row-level access rules or tenant scoping to isolate customer data.
A scheduled daily job must refresh location data, identify mismatches, and generate operational flags without manual intervention.
Run a daily cron job that revalidates active records and checks for stale or missing geolocation data.
Log each run with success/failure counts, duration, and affected records.
Queue retries for transient provider errors and mark persistent failures for review.
Generate alerts for large variance between providers or sudden address normalization changes.
Support configurable schedules by customer segment or environment.
The API should be secure, observable, and resilient enough for production use in construction and prop tech workflows.
Authenticate API requests using API keys, OAuth, or signed tokens depending on client type.
Rate limit incoming requests to protect external endpoint usage and database resources.
Add structured logging and tracing for each geolocation request and cron execution.
Return clear HTTP status codes and actionable error messages for client applications.
Provide health check endpoints for the Flask service and database connectivity.
The product should include lightweight operational views for users and internal teams to understand data quality and system behavior.
Dashboard for job status, provider latency, and endpoint failure rates.
Report on geolocation match confidence, stale records, and unresolved addresses.
Exportable CSV or JSON for downstream analytics and audit requirements.
Filter by customer, project, status, date range, and provider source.
Basic role-based permissions for admins, operators, and read-only users.
A user signs in through a secure web app or accesses the Flask API through an integration.
They create or import a project/site record with an address, parcel ID, or location hint.
The system immediately sends the location to the three geolocation endpoints and displays the normalized result.
If confidence is low or providers disagree, the app prompts the user to review or correct the address.
Within minutes, the user has an enriched location record and the daily cron job begins keeping it current.
The user enters an address, site name, or parcel identifier through the UI or API.
Validate required fields and show inline errors for incomplete or malformed addresses.
Support paste-from-spreadsheet import for batch workflows.
Return a request ID immediately for tracking.
The Flask API queries three external geolocation endpoints and captures each raw response.
Use timeouts and retries for each provider.
Preserve raw payloads for debugging and auditability.
Measure provider response time and failure state.
The system converts provider responses into a standard location schema and compares them.
Calculate confidence based on agreement, precision, and field completeness.
Highlight mismatches such as different coordinates or city/postal code discrepancies.
Choose a primary result and keep alternates available for review.
The app stores the canonical record in hosted Postgres and presents it to the user.
Save the cleaned record, provider metadata, and confidence score.
Render a summary card with map coordinates, formatted address, and source breakdown.
Provide a clear CTA to accept, edit, or flag the result.
A daily cron job rechecks active records and flags changes or stale entries.
Run on a predictable schedule with observable logs.
Send notifications for low-confidence or changed records.
Let admins suppress or pause refreshes for archived projects.
Bulk geolocation enrichment for large project imports.
Fallback handling when one or more geolocation endpoints are unavailable.
User-controlled confidence thresholds to decide when manual review is required.
Audit history showing all changes to coordinates and formatted addresses.
Privacy controls for hiding precise location details from lower-privilege users.
Manual override workflow for disputed or exceptional site records.
Clean, map-forward layout with an obvious primary location summary and secondary provider comparison panel.
Color-coded confidence and data quality indicators to help users spot issues quickly.
Accessible forms with keyboard navigation, high-contrast states, and screen-reader labels.
Fast perceived performance through loading skeletons and incremental provider result rendering.
Mobile-responsive design for field operations and on-site verification.
Maya is a project coordinator juggling dozens of construction sites across three states. Before this product, she spent hours copying addresses into multiple mapping tools, comparing results, and chasing down project managers when a site record looked wrong. Every mismatch introduced risk: delayed permits, misrouted deliveries, and avoidable back-and-forth with operations. With this platform, Maya enters a site address once and sees three geolocation sources reconciled into a single trustworthy record. The system flags a few edge cases automatically, while the daily cron job keeps active projects fresh without extra work from her team. Maya saves time, her managers trust the data more, and the company gains a scalable location-intelligence workflow that turns messy site information into a repeatable operational advantage.
Reduce median time to validate a location from 10 minutes to under 2 minutes.
Achieve 80% adoption of automated geolocation review workflows among active users.
Maintain a user satisfaction score of 4.5/5 or higher for location accuracy.
Decrease manual correction rate on imported addresses by 50% within three months.
Reach 60% weekly return usage among operations users managing active projects.
Improve trial-to-paid conversion by 15% through visible data-quality value.
Increase retention by 20% for customers using daily refresh automation.
Reduce support tickets related to incorrect site locations by 40%.
Generate upsell opportunities from bulk enrichment and admin reporting features.
Position the product as a differentiated construction location-intelligence layer in sales demos and case studies.
Maintain API p95 response time under 800ms for cached lookups and under 2.5s for live provider calls.
Achieve 99.9% uptime for the Flask API and scheduled cron service.
Keep daily job completion success rate above 98% with retries enabled.
Ensure all sensitive data in transit and at rest is encrypted using industry-standard practices.
Track location_search_submitted when a user enters an address or parcel ID.
Track provider_request_started and provider_request_completed for each geolocation endpoint.
Track location_normalized when the system produces a canonical record.
Track confidence_reviewed when a user accepts, edits, or rejects the result.
Track daily_job_started and daily_job_completed for cron reliability monitoring.
Track address_correction_saved to measure manual cleanup behavior.
Track export_downloaded when users retrieve reporting or audit data.
Flask backend with RESTful endpoints for location enrichment, record management, and admin reporting.
Hosted Postgres database with normalized schemas for users, projects, records, jobs, and audit logs.
Scheduled cron infrastructure for daily refresh and maintenance tasks.
Concurrency-safe orchestration for calling three external geolocation endpoints.
Structured logging, tracing, and metrics for API and cron observability.
Optional frontend dashboard built with a modern web framework for operational review.
Environment-based configuration for secrets, endpoints, schedules, and retry policies.
Three external geolocation APIs with different response formats and reliability profiles.
Authentication provider such as OAuth or SSO for enterprise users.
Email or webhook notification service for alerts and daily job failures.
Analytics platform for product event tracking and funnel reporting.
CSV/JSON import-export integration for customer data exchange.
Encrypt data at rest in Postgres and in transit via TLS.
Store only necessary geolocation details and apply data minimization by tenant.
Provide audit logs for all manual edits and automated changes to location records.
Support GDPR/CCPA requirements such as deletion requests, export requests, and retention controls.
Limit access by role and tenant so one customer cannot view another customer’s records.
Use caching and request deduplication to control external API cost and improve latency.
Index frequently queried location and project fields in Postgres.
Queue or batch large imports and cron refreshes to avoid overwhelming provider endpoints.
Monitor provider latency and set circuit-breaker logic for degraded services.
External provider inconsistency may produce conflicting coordinates; mitigate with confidence scoring, fallback ranking, and manual review workflows.
API rate limits or provider downtime could impact reliability; mitigate with caching, retries, circuit breakers, and health monitoring.
Daily cron jobs may grow expensive at scale; mitigate with incremental processing, batching, and configurable schedules.
Users may distrust automated geolocation output; mitigate with transparent source comparison and clear audit trails.
Tenant isolation and access control complexity could create security risk; mitigate with strong authorization, row-level controls, and regular security testing.