airqo-platform/AirQo-api

perf/refactor: pre-compute device_categories at write time to eliminate runtime aggregation overhead

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#6,185 opened on Mar 8, 2026

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device-registryenhancementgood first issue

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Description

Field Source
category Device document root
deployment_type Device document root ("static" | "mobile")
network Device document root

Contributor guide

Research direction
Study the existing getDeviceCategoriesAddFieldsStage function and the device model's pre save hook. Understand how device categories are derived from device fields. Then, implement the compute function and modify the model to store computed categories on write, replacing the aggregation stage with a simple projection.
Tech stack
javascriptnodejsmongodb
Domain
backend
Issue type
Performance
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Node.jsMongoDB
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65