Implementation:PrefectHQ Prefect UI V2 Package Lock

Knowledge Sources	PrefectHQ_Prefect npm Docs
Domains	Frontend, Dependency_Management, Build_System
Last Updated	2026-02-09 22:00 GMT

Overview

NPM dependency lock file that pins exact versions of all direct and transitive dependencies for the ui-v2 React application.

Description

The ui-v2/package-lock.json is an auto-generated file produced by npm that records the resolved version, integrity hash (SHA-512), and complete dependency tree for every installed package in the ui-v2 project. It ensures that all developers and CI environments install identical dependency versions regardless of when `npm install` is run. The file covers the full transitive closure of dependencies from React 19, TanStack ecosystem, Radix UI primitives, Recharts, CodeMirror, and all dev tooling (Vite, Vitest, Playwright, Storybook, Biome).

Usage

This file is consumed automatically by `npm install` (or `npm ci` in CI). It should be committed to version control and never edited manually. It is regenerated when dependencies in `package.json` change.

Code Reference

Source Location

• Repository: PrefectHQ_Prefect
• File: ui-v2/package-lock.json
• Lines: 1-12710

Signature

{
  "name": "prefect-ui",
  "version": "0.0.0",
  "lockfileVersion": 3,
  "packages": {
    "": {
      "name": "prefect-ui",
      "dependencies": { ... },
      "devDependencies": { ... }
    },
    "node_modules/react": {
      "version": "19.2.4",
      "resolved": "https://registry.npmjs.org/react/-/react-19.2.4.tgz",
      "integrity": "sha512-..."
    }
  }
}

Import

# Not importable; consumed by npm automatically
cd ui-v2
npm ci  # Install exact locked versions (preferred for CI)
npm install  # Install and potentially update lock file

I/O Contract

Inputs

Name	Type	Required	Description
package.json	file	Yes	Declares desired dependency ranges
npm registry	network	Yes	Source for resolving package versions

Outputs

Name	Type	Description
node_modules/	directory	Installed packages matching locked versions
Deterministic builds	guarantee	Identical dependency tree across all environments

Usage Examples

Clean Install in CI

cd ui-v2
npm ci  # Uses package-lock.json for deterministic install
npm run build  # Build with exact locked dependency versions

Updating Dependencies

cd ui-v2
npm update  # Updates within semver ranges, regenerates lock file
npm audit fix  # Fix vulnerabilities, regenerates lock file