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GJ Kit

GJ Kit library documentation

Reusable TypeScript libraries for Expo, React Native, NestJS, and Toss Payments.

Open a package page for its install command, golden path, peer/platform boundary, and API reference. API reference is generated only from the current npm-latest declaration snapshot.

Choose a starting point

Section titled “Choose a starting point”
  • Expo and React Native UI primitives: @gj-kit/expo-ui
  • Media files, uploads, and device libraries: @gj-kit/expo-media
  • Token lifecycle: @gj-kit/expo-auth
  • HealthKit and Health Connect: @gj-kit/expo-workouts
  • Nest operations and notifications: @gj-kit/nest-operations-jobs, @gj-kit/nest-notifications
  • Payments, Nest composition, and PostgreSQL stores: the @gj-kit/toss-payments family

Expo & React Native

Section titled “Expo & React Native”
Package What it is npm latest
@gj-kit/expo-ui Accessible, token-driven UI primitives for Expo, React Native, and the web. 0.8.1
@gj-kit/expo-media A hardened Expo and React Native media pipeline with explicit adapters and durable file boundaries. 0.6.1
@gj-kit/expo-auth Token lifecycle primitives for Expo, React Native, and the web, including coordinated refresh and storage adapters. 0.1.1
@gj-kit/expo-workouts A native Expo bridge for HealthKit and Health Connect workouts, routes, authorization, and incremental sync. 0.1.1

Utilities

Section titled “Utilities”
Package What it is npm latest
@gj-kit/format Explicit-by-construction date, number, byte, duration, and Korean currency formatting for TypeScript. 0.1.1

NestJS

Section titled “NestJS”
Package What it is npm latest
@gj-kit/nest-operations-jobs NestJS composition for durable, authenticated, observable operational jobs with explicit store ports. 0.1.1
@gj-kit/nest-notifications NestJS composition for transactional notification relay, dispatch, presentation, and Expo push boundaries. 0.1.1

Payments

Section titled “Payments”
Package What it is npm latest
@gj-kit/toss-payments Type-safe Toss Payments widget and API v2 flows for TypeScript servers and browsers. 0.6.1
@gj-kit/toss-payments-nestjs NestJS DI and raw-body webhook composition for @gj-kit/toss-payments. 0.4.4
@gj-kit/toss-payments-postgresql PostgreSQL stores, migrations, inbox, and encryption seams for @gj-kit/toss-payments. 0.5.1

Agents and automation

Section titled “Agents and automation”

Alongside these pages, GJ Kit publishes llms.txt and an API JSON index. Automation should always check the JSON package version and import path.